20″-150LB 3-Piece Trunnion Mounted Ball Valve

Valve Type 3-Piece Trunnion Ball Valve
Nominal Bore 20 inches (DN500)
Pressure Class 150 LB (Class 150)
Connection Type Flanged Ends (RF)
Operation Type Worm Gear Operator
Design Standard API 6D / ASME B16.34
Face-to-Face ASME B16.10
Flange Standard ASME B16.5
Inspection & Test API 598

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توضیحات

Technical Data Sheet

3-Piece Trunnion Mounted Ball Valve

Project/Item: 3-Piece Fixed Ball Valve
Valve Size: 20 inches (20″)
رتبه‌بندی فشار: 150LB (Class 150)

General Information

Item	Technical Parameter	اظهارات
نوع شیر	3-Piece Trunnion Ball Valve	Side Entry, Bolted Bonnet Construction
Nominal Bore	20 inches (DN500)	Full Bore Design
Pressure Class	150 LB (Class 150)	Corresponds to PN20
Connection Type	Flanged Ends (RF)	Raised Face Flanges per ASME B16.5
Operation Type	Worm Gear Operator	Suitable for large bore valves, low torque
Design Standard	API 6D / ASME B16.34	Pipeline valve design specification
حضوری	ASME B16.10	For RF flanged ends
Flange Standard	ASME B16.5	Flange dimensions and drilling
Inspection & Test	API 598	Pressure test standards

Main Technical Parameters & Performance

Item	Technical Parameter	اظهارات
Shell Test Pressure	3.1 MPa	Hydrostatic, ambient temperature
High-Pressure Seal Test	2.2 MPa	Hydrostatic, ambient temperature
Low-Pressure Seal Test	0.5 – 0.7 MPa	Air or Nitrogen
محدوده دما	-29°C ~ +200°C	Depends on seat material selection (e.g., PTFE)
Applicable Media	Water, Oil, Natural Gas, Steam	WCB body suitable for non-corrosive & mildly corrosive media
اپراتور	Turbine (Worm Gear)	استاندارد
Fire Safe Design	API 607	Optional; ensures sealing during fire conditions
دستگاه ضد الکتریسیته ساکن	Yes	Springs and balls to dissipate static charge
Blow-out Proof Stem	Yes	Stem designed with an integral shoulder

Main Material Specifications

Based on WCB Body + 316 Trim requirements:

Part Name	Material Type	Material Grade	Standard / Remarks
Body / Bonnet	Carbon Steel	A216 WCB	Cast steel suitable for 3-piece design
توپ	Stainless Steel	A182 F316	316 SS, may be hardened (Chrome Plated)
ساقه	Stainless Steel	A182 F316	High strength, good corrosion resistance
Seat Insert (Ring)	Reinforced PTFE	RPTFE / Nylon	Or PPL (High temp version)
Seat Support / Holder	Stainless Steel	A182 F316	Supports the soft seal ring
Springs	Alloy Steel	17-7PH / Inconel	Preloads the seats for low-pressure sealing
Studs / Bolts	Alloy Steel	A193 B7	High strength alloy steel
Nuts	Carbon Steel	A194 2H	Standard heavy hex nuts
Packing / Gasket	Flexible Graphite / PTFE	/	Optional Low-Emission packing available

Main Dimensions (For 20″ Class 150)

Typical dimensions per ASME standards. Variations may occur between manufacturers.

توضیحات	Dimensions (mm)	Dimensions (inches)	اظهارات
Port Diameter (d)	489	19.25″	Full bore (approx)
Flange O.D. (D)	698	27.5″	Per ASME B16.5 20″ Class 150
Bolt Circle (D1)	635	25.0″
Flange Thickness (b)	42.9	1.69″
No. of Holes – Dia	20 – Φ32 mm	20 – 1.25″	20 bolt holes
Face-to-Face (L)	914	36.0″	Flanged RF to RF (ASME B16.10)
Center to Top (H1)	~590	~23.2″	Approx, from stem center to top of valve
Gearbox Height (H2)	~840	~33.1″	Total height with gearbox (approx)
Handwheel Dia (Do)	~800	~31.5″	Reference
Approx Weight (WT)	~1190 kg	~2620 lbs	Estimated, cast steel body

Design Features & Requirements

3-Piece Bolted Body: The body consists of three parts (Body + 2 End Caps) bolted together. This allows for easy maintenance (seat/ball replacement) without removing the entire valve from the pipeline.
Trunnion Mounted Ball: The ball is fixed and supported by upper and lower stems/bearings. This design is ideal for 20″ large bore applications, reducing operating torque and ensuring stable performance under high differential pressure.
Double Piston Effect (DPE) Seats: Standard seats provide bidirectional sealing. The valve typically features automatic cavity pressure relief (the upstream seat acts as a piston, allowing overpressure in the body cavity to vent into the pipeline).
Emergency Sealant Injection: The valve body is equipped with sealant injection fittings. In case of seat damage, sealant can be injected to temporarily restore sealing.
دستگاه ضد الکتریسیته ساکن: A spring-loaded plunger/ball ensures electrical continuity between the ball, stem, and body to prevent static spark buildup.
Secondary Metal Seal: In the event the soft seat is destroyed by fire, the ball will contact the metal seat support, providing a metal-to-metal seal (Fire Safe feature).

Note:

This data sheet is based on standard ASME/API specifications.
The gearbox dimensions (height, handwheel size) and overall weight may vary depending on the manufacturer and gearbox model. Please refer to the final manufacturer’s drawing for certified dimensions.

ضمانت:

شرکت SAVVY VALVES متعهد به ارائه کیفیت استثنایی محصول و خدمات پس از فروش بدون نگرانی است. شیرهای ما حداقل ۱۲ ماه عمر مفید دارند که در این مدت، تمام قطعات یدکی لازم و دستورالعمل‌های دقیق تعمیر و نگهداری را به صورت رایگان ارائه خواهیم داد. در طول دوره گارانتی، در صورت بروز هرگونه آسیب غیر انسانی، قطعات را بدون هیچ هزینه‌ای تعویض کرده و پشتیبانی فنی حرفه‌ای ارائه می‌دهیم. پس از انقضای گارانتی، مشتریان فقط باید هزینه قطعات یدکی را بپردازند، در حالی که همچنان از خدمات تعمیر و نگهداری با تخفیف بهره‌مند می‌شوند. هدف ما کمک به مشتریان برای کاهش هزینه‌های عملیاتی و افزایش بهره‌وری تولید از طریق کیفیت قابل اعتماد و پشتیبانی جامع پس از فروش است. چه برای سوالات فنی و چه برای نیازهای تعمیر و نگهداری، تیم متخصص ما به سرعت پاسخ خواهد داد تا اطمینان حاصل شود که سیستم شیر شما در هر زمان عملکرد بهینه خود را حفظ می‌کند.

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20″-150LB 3-Piece Trunnion Mounted Ball Valve

تماس با ما

توضیحات

Technical Data Sheet

3-Piece Trunnion Mounted Ball Valve

Project/Item: 3-Piece Fixed Ball Valve
Valve Size: 20 inches (20″)
رتبه‌بندی فشار: 150LB (Class 150)

General Information

Item	Technical Parameter	اظهارات
نوع شیر	3-Piece Trunnion Ball Valve	Side Entry, Bolted Bonnet Construction
Nominal Bore	20 inches (DN500)	Full Bore Design
Pressure Class	150 LB (Class 150)	Corresponds to PN20
Connection Type	Flanged Ends (RF)	Raised Face Flanges per ASME B16.5
Operation Type	Worm Gear Operator	Suitable for large bore valves, low torque
Design Standard	API 6D / ASME B16.34	Pipeline valve design specification
حضوری	ASME B16.10	For RF flanged ends
Flange Standard	ASME B16.5	Flange dimensions and drilling
Inspection & Test	API 598	Pressure test standards

Main Technical Parameters & Performance

Item	Technical Parameter	اظهارات
Shell Test Pressure	3.1 MPa	Hydrostatic, ambient temperature
High-Pressure Seal Test	2.2 MPa	Hydrostatic, ambient temperature
Low-Pressure Seal Test	0.5 – 0.7 MPa	Air or Nitrogen
محدوده دما	-29°C ~ +200°C	Depends on seat material selection (e.g., PTFE)
Applicable Media	Water, Oil, Natural Gas, Steam	WCB body suitable for non-corrosive & mildly corrosive media
اپراتور	Turbine (Worm Gear)	استاندارد
Fire Safe Design	API 607	Optional; ensures sealing during fire conditions
دستگاه ضد الکتریسیته ساکن	Yes	Springs and balls to dissipate static charge
Blow-out Proof Stem	Yes	Stem designed with an integral shoulder

Main Material Specifications

Based on WCB Body + 316 Trim requirements:

Part Name	Material Type	Material Grade	Standard / Remarks
Body / Bonnet	Carbon Steel	A216 WCB	Cast steel suitable for 3-piece design
توپ	Stainless Steel	A182 F316	316 SS, may be hardened (Chrome Plated)
ساقه	Stainless Steel	A182 F316	High strength, good corrosion resistance
Seat Insert (Ring)	Reinforced PTFE	RPTFE / Nylon	Or PPL (High temp version)
Seat Support / Holder	Stainless Steel	A182 F316	Supports the soft seal ring
Springs	Alloy Steel	17-7PH / Inconel	Preloads the seats for low-pressure sealing
Studs / Bolts	Alloy Steel	A193 B7	High strength alloy steel
Nuts	Carbon Steel	A194 2H	Standard heavy hex nuts
Packing / Gasket	Flexible Graphite / PTFE	/	Optional Low-Emission packing available

Main Dimensions (For 20″ Class 150)

Typical dimensions per ASME standards. Variations may occur between manufacturers.

توضیحات	Dimensions (mm)	Dimensions (inches)	اظهارات
Port Diameter (d)	489	19.25″	Full bore (approx)
Flange O.D. (D)	698	27.5″	Per ASME B16.5 20″ Class 150
Bolt Circle (D1)	635	25.0″
Flange Thickness (b)	42.9	1.69″
No. of Holes – Dia	20 – Φ32 mm	20 – 1.25″	20 bolt holes
Face-to-Face (L)	914	36.0″	Flanged RF to RF (ASME B16.10)
Center to Top (H1)	~590	~23.2″	Approx, from stem center to top of valve
Gearbox Height (H2)	~840	~33.1″	Total height with gearbox (approx)
Handwheel Dia (Do)	~800	~31.5″	Reference
Approx Weight (WT)	~1190 kg	~2620 lbs	Estimated, cast steel body

Design Features & Requirements

3-Piece Bolted Body: The body consists of three parts (Body + 2 End Caps) bolted together. This allows for easy maintenance (seat/ball replacement) without removing the entire valve from the pipeline.
Trunnion Mounted Ball: The ball is fixed and supported by upper and lower stems/bearings. This design is ideal for 20″ large bore applications, reducing operating torque and ensuring stable performance under high differential pressure.
Double Piston Effect (DPE) Seats: Standard seats provide bidirectional sealing. The valve typically features automatic cavity pressure relief (the upstream seat acts as a piston, allowing overpressure in the body cavity to vent into the pipeline).
Emergency Sealant Injection: The valve body is equipped with sealant injection fittings. In case of seat damage, sealant can be injected to temporarily restore sealing.
دستگاه ضد الکتریسیته ساکن: A spring-loaded plunger/ball ensures electrical continuity between the ball, stem, and body to prevent static spark buildup.
Secondary Metal Seal: In the event the soft seat is destroyed by fire, the ball will contact the metal seat support, providing a metal-to-metal seal (Fire Safe feature).

Note:

This data sheet is based on standard ASME/API specifications.
The gearbox dimensions (height, handwheel size) and overall weight may vary depending on the manufacturer and gearbox model. Please refer to the final manufacturer’s drawing for certified dimensions.

ضمانت:

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20″-150LB 3-Piece Trunnion Mounted Ball Valve

تماس با ما

توضیحات

Technical Data Sheet

3-Piece Trunnion Mounted Ball Valve

Project/Item: 3-Piece Fixed Ball Valve
Valve Size: 20 inches (20″)
رتبه‌بندی فشار: 150LB (Class 150)

General Information

Item	Technical Parameter	اظهارات
نوع شیر	3-Piece Trunnion Ball Valve	Side Entry, Bolted Bonnet Construction
Nominal Bore	20 inches (DN500)	Full Bore Design
Pressure Class	150 LB (Class 150)	Corresponds to PN20
Connection Type	Flanged Ends (RF)	Raised Face Flanges per ASME B16.5
Operation Type	Worm Gear Operator	Suitable for large bore valves, low torque
Design Standard	API 6D / ASME B16.34	Pipeline valve design specification
حضوری	ASME B16.10	For RF flanged ends
Flange Standard	ASME B16.5	Flange dimensions and drilling
Inspection & Test	API 598	Pressure test standards

Main Technical Parameters & Performance

Item	Technical Parameter	اظهارات
Shell Test Pressure	3.1 MPa	Hydrostatic, ambient temperature
High-Pressure Seal Test	2.2 MPa	Hydrostatic, ambient temperature
Low-Pressure Seal Test	0.5 – 0.7 MPa	Air or Nitrogen
محدوده دما	-29°C ~ +200°C	Depends on seat material selection (e.g., PTFE)
Applicable Media	Water, Oil, Natural Gas, Steam	WCB body suitable for non-corrosive & mildly corrosive media
اپراتور	Turbine (Worm Gear)	استاندارد
Fire Safe Design	API 607	Optional; ensures sealing during fire conditions
دستگاه ضد الکتریسیته ساکن	Yes	Springs and balls to dissipate static charge
Blow-out Proof Stem	Yes	Stem designed with an integral shoulder

Main Material Specifications

Based on WCB Body + 316 Trim requirements:

Part Name	Material Type	Material Grade	Standard / Remarks
Body / Bonnet	Carbon Steel	A216 WCB	Cast steel suitable for 3-piece design
توپ	Stainless Steel	A182 F316	316 SS, may be hardened (Chrome Plated)
ساقه	Stainless Steel	A182 F316	High strength, good corrosion resistance
Seat Insert (Ring)	Reinforced PTFE	RPTFE / Nylon	Or PPL (High temp version)
Seat Support / Holder	Stainless Steel	A182 F316	Supports the soft seal ring
Springs	Alloy Steel	17-7PH / Inconel	Preloads the seats for low-pressure sealing
Studs / Bolts	Alloy Steel	A193 B7	High strength alloy steel
Nuts	Carbon Steel	A194 2H	Standard heavy hex nuts
Packing / Gasket	Flexible Graphite / PTFE	/	Optional Low-Emission packing available

Main Dimensions (For 20″ Class 150)

Typical dimensions per ASME standards. Variations may occur between manufacturers.

توضیحات	Dimensions (mm)	Dimensions (inches)	اظهارات
Port Diameter (d)	489	19.25″	Full bore (approx)
Flange O.D. (D)	698	27.5″	Per ASME B16.5 20″ Class 150
Bolt Circle (D1)	635	25.0″
Flange Thickness (b)	42.9	1.69″
No. of Holes – Dia	20 – Φ32 mm	20 – 1.25″	20 bolt holes
Face-to-Face (L)	914	36.0″	Flanged RF to RF (ASME B16.10)
Center to Top (H1)	~590	~23.2″	Approx, from stem center to top of valve
Gearbox Height (H2)	~840	~33.1″	Total height with gearbox (approx)
Handwheel Dia (Do)	~800	~31.5″	Reference
Approx Weight (WT)	~1190 kg	~2620 lbs	Estimated, cast steel body

Design Features & Requirements

3-Piece Bolted Body: The body consists of three parts (Body + 2 End Caps) bolted together. This allows for easy maintenance (seat/ball replacement) without removing the entire valve from the pipeline.
Trunnion Mounted Ball: The ball is fixed and supported by upper and lower stems/bearings. This design is ideal for 20″ large bore applications, reducing operating torque and ensuring stable performance under high differential pressure.
Double Piston Effect (DPE) Seats: Standard seats provide bidirectional sealing. The valve typically features automatic cavity pressure relief (the upstream seat acts as a piston, allowing overpressure in the body cavity to vent into the pipeline).
Emergency Sealant Injection: The valve body is equipped with sealant injection fittings. In case of seat damage, sealant can be injected to temporarily restore sealing.
دستگاه ضد الکتریسیته ساکن: A spring-loaded plunger/ball ensures electrical continuity between the ball, stem, and body to prevent static spark buildup.
Secondary Metal Seal: In the event the soft seat is destroyed by fire, the ball will contact the metal seat support, providing a metal-to-metal seal (Fire Safe feature).

Note:

This data sheet is based on standard ASME/API specifications.
The gearbox dimensions (height, handwheel size) and overall weight may vary depending on the manufacturer and gearbox model. Please refer to the final manufacturer’s drawing for certified dimensions.

ضمانت:

محصولات حراج داغ

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20″-150LB 3-Piece Trunnion Mounted Ball Valve

تماس با ما

توضیحات

Technical Data Sheet

3-Piece Trunnion Mounted Ball Valve

Project/Item: 3-Piece Fixed Ball Valve
Valve Size: 20 inches (20″)
رتبه‌بندی فشار: 150LB (Class 150)

General Information

Item	Technical Parameter	اظهارات
نوع شیر	3-Piece Trunnion Ball Valve	Side Entry, Bolted Bonnet Construction
Nominal Bore	20 inches (DN500)	Full Bore Design
Pressure Class	150 LB (Class 150)	Corresponds to PN20
Connection Type	Flanged Ends (RF)	Raised Face Flanges per ASME B16.5
Operation Type	Worm Gear Operator	Suitable for large bore valves, low torque
Design Standard	API 6D / ASME B16.34	Pipeline valve design specification
حضوری	ASME B16.10	For RF flanged ends
Flange Standard	ASME B16.5	Flange dimensions and drilling
Inspection & Test	API 598	Pressure test standards

Main Technical Parameters & Performance

Item	Technical Parameter	اظهارات
Shell Test Pressure	3.1 MPa	Hydrostatic, ambient temperature
High-Pressure Seal Test	2.2 MPa	Hydrostatic, ambient temperature
Low-Pressure Seal Test	0.5 – 0.7 MPa	Air or Nitrogen
محدوده دما	-29°C ~ +200°C	Depends on seat material selection (e.g., PTFE)
Applicable Media	Water, Oil, Natural Gas, Steam	WCB body suitable for non-corrosive & mildly corrosive media
اپراتور	Turbine (Worm Gear)	استاندارد
Fire Safe Design	API 607	Optional; ensures sealing during fire conditions
دستگاه ضد الکتریسیته ساکن	Yes	Springs and balls to dissipate static charge
Blow-out Proof Stem	Yes	Stem designed with an integral shoulder

Main Material Specifications

Based on WCB Body + 316 Trim requirements:

Part Name	Material Type	Material Grade	Standard / Remarks
Body / Bonnet	Carbon Steel	A216 WCB	Cast steel suitable for 3-piece design
توپ	Stainless Steel	A182 F316	316 SS, may be hardened (Chrome Plated)
ساقه	Stainless Steel	A182 F316	High strength, good corrosion resistance
Seat Insert (Ring)	Reinforced PTFE	RPTFE / Nylon	Or PPL (High temp version)
Seat Support / Holder	Stainless Steel	A182 F316	Supports the soft seal ring
Springs	Alloy Steel	17-7PH / Inconel	Preloads the seats for low-pressure sealing
Studs / Bolts	Alloy Steel	A193 B7	High strength alloy steel
Nuts	Carbon Steel	A194 2H	Standard heavy hex nuts
Packing / Gasket	Flexible Graphite / PTFE	/	Optional Low-Emission packing available

Main Dimensions (For 20″ Class 150)

Typical dimensions per ASME standards. Variations may occur between manufacturers.

توضیحات	Dimensions (mm)	Dimensions (inches)	اظهارات
Port Diameter (d)	489	19.25″	Full bore (approx)
Flange O.D. (D)	698	27.5″	Per ASME B16.5 20″ Class 150
Bolt Circle (D1)	635	25.0″
Flange Thickness (b)	42.9	1.69″
No. of Holes – Dia	20 – Φ32 mm	20 – 1.25″	20 bolt holes
Face-to-Face (L)	914	36.0″	Flanged RF to RF (ASME B16.10)
Center to Top (H1)	~590	~23.2″	Approx, from stem center to top of valve
Gearbox Height (H2)	~840	~33.1″	Total height with gearbox (approx)
Handwheel Dia (Do)	~800	~31.5″	Reference
Approx Weight (WT)	~1190 kg	~2620 lbs	Estimated, cast steel body

Design Features & Requirements

3-Piece Bolted Body: The body consists of three parts (Body + 2 End Caps) bolted together. This allows for easy maintenance (seat/ball replacement) without removing the entire valve from the pipeline.
Trunnion Mounted Ball: The ball is fixed and supported by upper and lower stems/bearings. This design is ideal for 20″ large bore applications, reducing operating torque and ensuring stable performance under high differential pressure.
Double Piston Effect (DPE) Seats: Standard seats provide bidirectional sealing. The valve typically features automatic cavity pressure relief (the upstream seat acts as a piston, allowing overpressure in the body cavity to vent into the pipeline).
Emergency Sealant Injection: The valve body is equipped with sealant injection fittings. In case of seat damage, sealant can be injected to temporarily restore sealing.
دستگاه ضد الکتریسیته ساکن: A spring-loaded plunger/ball ensures electrical continuity between the ball, stem, and body to prevent static spark buildup.
Secondary Metal Seal: In the event the soft seat is destroyed by fire, the ball will contact the metal seat support, providing a metal-to-metal seal (Fire Safe feature).

Note:

This data sheet is based on standard ASME/API specifications.
The gearbox dimensions (height, handwheel size) and overall weight may vary depending on the manufacturer and gearbox model. Please refer to the final manufacturer’s drawing for certified dimensions.

ضمانت:

محصولات حراج داغ

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جدیدترین‌ها اخبار

20″-150LB 3-Piece Trunnion Mounted Ball Valve

تماس با ما

توضیحات

Technical Data Sheet

3-Piece Trunnion Mounted Ball Valve

Project/Item: 3-Piece Fixed Ball Valve
Valve Size: 20 inches (20″)
رتبه‌بندی فشار: 150LB (Class 150)

General Information

Item	Technical Parameter	اظهارات
نوع شیر	3-Piece Trunnion Ball Valve	Side Entry, Bolted Bonnet Construction
Nominal Bore	20 inches (DN500)	Full Bore Design
Pressure Class	150 LB (Class 150)	Corresponds to PN20
Connection Type	Flanged Ends (RF)	Raised Face Flanges per ASME B16.5
Operation Type	Worm Gear Operator	Suitable for large bore valves, low torque
Design Standard	API 6D / ASME B16.34	Pipeline valve design specification
حضوری	ASME B16.10	For RF flanged ends
Flange Standard	ASME B16.5	Flange dimensions and drilling
Inspection & Test	API 598	Pressure test standards

Main Technical Parameters & Performance

Item	Technical Parameter	اظهارات
Shell Test Pressure	3.1 MPa	Hydrostatic, ambient temperature
High-Pressure Seal Test	2.2 MPa	Hydrostatic, ambient temperature
Low-Pressure Seal Test	0.5 – 0.7 MPa	Air or Nitrogen
محدوده دما	-29°C ~ +200°C	Depends on seat material selection (e.g., PTFE)
Applicable Media	Water, Oil, Natural Gas, Steam	WCB body suitable for non-corrosive & mildly corrosive media
اپراتور	Turbine (Worm Gear)	استاندارد
Fire Safe Design	API 607	Optional; ensures sealing during fire conditions
دستگاه ضد الکتریسیته ساکن	Yes	Springs and balls to dissipate static charge
Blow-out Proof Stem	Yes	Stem designed with an integral shoulder

Main Material Specifications

Based on WCB Body + 316 Trim requirements:

Part Name	Material Type	Material Grade	Standard / Remarks
Body / Bonnet	Carbon Steel	A216 WCB	Cast steel suitable for 3-piece design
توپ	Stainless Steel	A182 F316	316 SS, may be hardened (Chrome Plated)
ساقه	Stainless Steel	A182 F316	High strength, good corrosion resistance
Seat Insert (Ring)	Reinforced PTFE	RPTFE / Nylon	Or PPL (High temp version)
Seat Support / Holder	Stainless Steel	A182 F316	Supports the soft seal ring
Springs	Alloy Steel	17-7PH / Inconel	Preloads the seats for low-pressure sealing
Studs / Bolts	Alloy Steel	A193 B7	High strength alloy steel
Nuts	Carbon Steel	A194 2H	Standard heavy hex nuts
Packing / Gasket	Flexible Graphite / PTFE	/	Optional Low-Emission packing available

Main Dimensions (For 20″ Class 150)

Typical dimensions per ASME standards. Variations may occur between manufacturers.

توضیحات	Dimensions (mm)	Dimensions (inches)	اظهارات
Port Diameter (d)	489	19.25″	Full bore (approx)
Flange O.D. (D)	698	27.5″	Per ASME B16.5 20″ Class 150
Bolt Circle (D1)	635	25.0″
Flange Thickness (b)	42.9	1.69″
No. of Holes – Dia	20 – Φ32 mm	20 – 1.25″	20 bolt holes
Face-to-Face (L)	914	36.0″	Flanged RF to RF (ASME B16.10)
Center to Top (H1)	~590	~23.2″	Approx, from stem center to top of valve
Gearbox Height (H2)	~840	~33.1″	Total height with gearbox (approx)
Handwheel Dia (Do)	~800	~31.5″	Reference
Approx Weight (WT)	~1190 kg	~2620 lbs	Estimated, cast steel body

Design Features & Requirements

3-Piece Bolted Body: The body consists of three parts (Body + 2 End Caps) bolted together. This allows for easy maintenance (seat/ball replacement) without removing the entire valve from the pipeline.
Trunnion Mounted Ball: The ball is fixed and supported by upper and lower stems/bearings. This design is ideal for 20″ large bore applications, reducing operating torque and ensuring stable performance under high differential pressure.
Double Piston Effect (DPE) Seats: Standard seats provide bidirectional sealing. The valve typically features automatic cavity pressure relief (the upstream seat acts as a piston, allowing overpressure in the body cavity to vent into the pipeline).
Emergency Sealant Injection: The valve body is equipped with sealant injection fittings. In case of seat damage, sealant can be injected to temporarily restore sealing.
دستگاه ضد الکتریسیته ساکن: A spring-loaded plunger/ball ensures electrical continuity between the ball, stem, and body to prevent static spark buildup.
Secondary Metal Seal: In the event the soft seat is destroyed by fire, the ball will contact the metal seat support, providing a metal-to-metal seal (Fire Safe feature).

Note:

This data sheet is based on standard ASME/API specifications.
The gearbox dimensions (height, handwheel size) and overall weight may vary depending on the manufacturer and gearbox model. Please refer to the final manufacturer’s drawing for certified dimensions.

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20″-150LB 3-Piece Trunnion Mounted Ball Valve

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توضیحات

Technical Data Sheet

3-Piece Trunnion Mounted Ball Valve

Project/Item: 3-Piece Fixed Ball Valve
Valve Size: 20 inches (20″)
رتبه‌بندی فشار: 150LB (Class 150)

General Information

Item	Technical Parameter	اظهارات
نوع شیر	3-Piece Trunnion Ball Valve	Side Entry, Bolted Bonnet Construction
Nominal Bore	20 inches (DN500)	Full Bore Design
Pressure Class	150 LB (Class 150)	Corresponds to PN20
Connection Type	Flanged Ends (RF)	Raised Face Flanges per ASME B16.5
Operation Type	Worm Gear Operator	Suitable for large bore valves, low torque
Design Standard	API 6D / ASME B16.34	Pipeline valve design specification
حضوری	ASME B16.10	For RF flanged ends
Flange Standard	ASME B16.5	Flange dimensions and drilling
Inspection & Test	API 598	Pressure test standards

Main Technical Parameters & Performance

Item	Technical Parameter	اظهارات
Shell Test Pressure	3.1 MPa	Hydrostatic, ambient temperature
High-Pressure Seal Test	2.2 MPa	Hydrostatic, ambient temperature
Low-Pressure Seal Test	0.5 – 0.7 MPa	Air or Nitrogen
محدوده دما	-29°C ~ +200°C	Depends on seat material selection (e.g., PTFE)
Applicable Media	Water, Oil, Natural Gas, Steam	WCB body suitable for non-corrosive & mildly corrosive media
اپراتور	Turbine (Worm Gear)	استاندارد
Fire Safe Design	API 607	Optional; ensures sealing during fire conditions
دستگاه ضد الکتریسیته ساکن	Yes	Springs and balls to dissipate static charge
Blow-out Proof Stem	Yes	Stem designed with an integral shoulder

Main Material Specifications

Based on WCB Body + 316 Trim requirements:

Part Name	Material Type	Material Grade	Standard / Remarks
Body / Bonnet	Carbon Steel	A216 WCB	Cast steel suitable for 3-piece design
توپ	Stainless Steel	A182 F316	316 SS, may be hardened (Chrome Plated)
ساقه	Stainless Steel	A182 F316	High strength, good corrosion resistance
Seat Insert (Ring)	Reinforced PTFE	RPTFE / Nylon	Or PPL (High temp version)
Seat Support / Holder	Stainless Steel	A182 F316	Supports the soft seal ring
Springs	Alloy Steel	17-7PH / Inconel	Preloads the seats for low-pressure sealing
Studs / Bolts	Alloy Steel	A193 B7	High strength alloy steel
Nuts	Carbon Steel	A194 2H	Standard heavy hex nuts
Packing / Gasket	Flexible Graphite / PTFE	/	Optional Low-Emission packing available

Main Dimensions (For 20″ Class 150)

Typical dimensions per ASME standards. Variations may occur between manufacturers.

توضیحات	Dimensions (mm)	Dimensions (inches)	اظهارات
Port Diameter (d)	489	19.25″	Full bore (approx)
Flange O.D. (D)	698	27.5″	Per ASME B16.5 20″ Class 150
Bolt Circle (D1)	635	25.0″
Flange Thickness (b)	42.9	1.69″
No. of Holes – Dia	20 – Φ32 mm	20 – 1.25″	20 bolt holes
Face-to-Face (L)	914	36.0″	Flanged RF to RF (ASME B16.10)
Center to Top (H1)	~590	~23.2″	Approx, from stem center to top of valve
Gearbox Height (H2)	~840	~33.1″	Total height with gearbox (approx)
Handwheel Dia (Do)	~800	~31.5″	Reference
Approx Weight (WT)	~1190 kg	~2620 lbs	Estimated, cast steel body

Design Features & Requirements

3-Piece Bolted Body: The body consists of three parts (Body + 2 End Caps) bolted together. This allows for easy maintenance (seat/ball replacement) without removing the entire valve from the pipeline.
Trunnion Mounted Ball: The ball is fixed and supported by upper and lower stems/bearings. This design is ideal for 20″ large bore applications, reducing operating torque and ensuring stable performance under high differential pressure.
Double Piston Effect (DPE) Seats: Standard seats provide bidirectional sealing. The valve typically features automatic cavity pressure relief (the upstream seat acts as a piston, allowing overpressure in the body cavity to vent into the pipeline).
Emergency Sealant Injection: The valve body is equipped with sealant injection fittings. In case of seat damage, sealant can be injected to temporarily restore sealing.
دستگاه ضد الکتریسیته ساکن: A spring-loaded plunger/ball ensures electrical continuity between the ball, stem, and body to prevent static spark buildup.
Secondary Metal Seal: In the event the soft seat is destroyed by fire, the ball will contact the metal seat support, providing a metal-to-metal seal (Fire Safe feature).

Note:

This data sheet is based on standard ASME/API specifications.
The gearbox dimensions (height, handwheel size) and overall weight may vary depending on the manufacturer and gearbox model. Please refer to the final manufacturer’s drawing for certified dimensions.

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