4″*3″-1500LB SS Trunnion Ball Valve

Valve Size 4 inches x 3 inches (DN100 x DN80) – Reduced Bore
Pressure Class Class 1500 LB (PN250 / 3700 PSI)
Body Material Stainless Steel (ASTM A182 F304 / F316 / F316L)
Ball Material Stainless Steel (ASTM A182 F304 / F316)
Stem Material Stainless Steel (ASTM A182 F316 / 17-4PH)
Manufacturing Process Forged Steel / Cast Steel (depending on manufacturer)
Design Standard API 6D / ASME B16.34

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4″*3″-1500LB SS Trunnion Ball Valve

TECHNICAL DATA SHEET

Product Name: 4″ x 3″ 1500LB Stainless Steel Trunnion Mounted Ball Valve
Model/Specification: 4×3″-1500LB-SS-TRUNNION
밸브 유형: Trunnion Ball Valve (Reduced Bore)
Connection Type: Flanged (RF / RTJ) / Butt Weld (BW) User specified

Basic Design Parameters

매개변수	Standard/Specification
Valve Size	4 inches x 3 inches (DN100 x DN80) – Reduced Bore
Pressure Class	Class 1500 LB (PN250 / 3700 PSI)
본체 재질	Stainless Steel (ASTM A182 F304 / F316 / F316L)
Ball Material	Stainless Steel (ASTM A182 F304 / F316)
Stem Material	Stainless Steel (ASTM A182 F316 / 17-4PH)
Manufacturing Process	Forged Steel / Cast Steel (depending on manufacturer)
Design Standard	API 6D / ASME B16.34
End Connection Standard	ASME B16.5 (Flanged RF/RTJ) / ASME B16.25 (BW)
Face to Face Standard	ASME B16.10
Test & Inspection Std.	API 598 / API 6D
Fire-Safe Design	API 607 / API 6FA (Optional)
Fugitive Emission	ISO 15848-1 (Optional)

Technical Specifications

매개변수	Details
밸브 유형	Trunnion Mounted Ball Valve, Side Entry / Top Entry (Optional)
Body Type	Two-Piece / Three-Piece Bolted Body
보어 유형	Reduced Bore (4″x3″)
Seat Type	Double Piston Effect (DPE) / Single Piston Effect (SPE) options available
Ball Support	Trunnion-mounted (fixed ball) with double stem bearings
Sealing Principle	Double Block and Bleed (DBB) – Valve isolates pressure from both ends and allows cavity bleed
Applicable Media	Oil, Natural Gas, Water, Steam, Corrosive Fluids, Hydrocarbons
온도 범위	-46°C to +200°C (Soft Seats) / -29°C to +427°C (Metal Seats)
작업	Worm Gear (Standard) / Lever / Pneumatic Actuator / Electric Actuator
정전기 방지 장치	API 6D Requirement (Standard) – Spring-loaded ball between ball and stem
Blow-Out Proof Stem	기준
Cavity Pressure Relief	Self-relieving seat design (automatic pressure relief in ball cavity)
Emergency Sealant Injection	Standard (Sealant injection fittings on body and seat)

Material of Construction (Recommended – Stainless Steel)

Part Name	재료	Standard/Grade
몸	Stainless Steel	ASTM A182 F304 / F316 (Forged) or A351 CF8/CF8M (Cast)
Bonnet / Body Ends	Stainless Steel	ASTM A182 F304 / F316
공	Stainless Steel (Hardened)	ASTM A182 F304 / F316 (Chrome plated optional for wear resistance)
줄기	Stainless Steel / 17-4PH	ASTM A182 F316 / 17-4PH (High strength)
Trunnion	Stainless Steel	ASTM A182 F304 / F316
Seat Rings	Stainless Steel with Soft Insert	A182 F304/F316 + RPTFE / DEVLON® / PEEK
Seat Support / Carrier	Stainless Steel	ASTM A182 F304 / F316
Body Gasket	Spiral Wound	Stainless Steel + Graphite / PTFE
Stem Seals / Packing	RPTFE / Graphite	Low emission, fire-safe grade
Thrust Bearings	PTFE + Stainless Steel	Self-lubricating
정전기 방지 장치	Stainless Steel Ball + Spring	316 SS
Body Bolts/Nuts	Alloy Steel / Stainless Steel	ASTM A193 B7 / B8 + A194 2H / 8
Gear Operator	Carbon Steel Housing	With position indicator, ISO 5211 mounting pad

Main Dimensions & Connection Details

Note: Dimensions are for 4″x3″ Reduced Bore Trunnion Ball Valve with Flanged Ends (RF). BW end length may vary by manufacturer.

4.1 End-to-End Dimensions (Face-to-Face)

크기	Pressure Class	L (RF) mm	L (RF) in	L (RTJ) mm	L (RTJ) in
4″ x 3″	1500LB	432	17.0	432	17.0

4.2 Flange Details (Per ASME B16.5 – Class 1500)

매개변수	4″ Main Flanges
Flange Diameter (OD)	235 mm (9.25 in)
Bolt Circle Diameter (PCD)	190.5 mm (7.5 in)
Number of Bolt Holes	8
Bolt Hole Diameter	32 mm (1.25 in)
Bolt Thread Size	1 1/8″ – 8 UN
Raised Face Height	7 mm (0.28 in)
Hub Diameter	171.4 mm (6.75 in)
Flange Thickness (Min.)	46 mm (1.81 in)

4.3 Bore Details (Reduced Bore)

매개변수	Value
Port Diameter (Reduced Bore)	~76 mm (3.0 in) (Matches 3″ pipe ID)
Flow Area Reduction	Reduced bore for pressure drop management and cost efficiency

Pressure-Temperature Rating (ASME B16.34 / Class 1500)

*Material Group: Stainless Steel (A182 F304/F316) with Soft Seats (RPTFE/PEEK)*

Temperature (°C)	Working Pressure (bar)	Working Pressure (psi)	노트
-29 to 38	250	3625	Maximum Rating (Class 1500)
100	235	3400
150	220	3190	Max for standard RPTFE seats
200	205	2970	With PEEK seats
250	190	2755	With PEEK seats
300	175	2538	With PEEK seats
400	150	2175	With Metal Seats

Note: Metal seated versions available for higher temperatures up to 427°C .

Flow Characteristics (4″x3″ Reduced Bore)

매개변수	Value
Flow Coefficient Cv (US gal/min)	~500 – 600 (typical for 4″x3″ reduced bore)
Flow Coefficient Kv (m³/h)	~430 – 520
Shut-off Class	API 598 / API 6D (Zero Leakage – Soft Seat) / Class V or VI (Metal Seat)

Test Pressure (API 598 / API 6D)

Test Type	Medium	Pressure (bar)	Pressure (psi)	Acceptance Criteria
Shell Test (Hydrostatic)	Water	383	5550	1.5 x 38°C Rating (no visible leakage)
High-Pressure Seat Test	Water	281	4075	1.1 x 38°C Rating (Zero leakage – soft seats)
Low-Pressure Seat Test	Air / N2	5.5 – 7.0	80 – 100	Bubble-tight
Double Block & Bleed Test	Water / Air	Per API 6D	Per API 6D	Verify cavity isolation and bleed capability

Features & Applications

Key Features:

Trunnion Mounted Design: The ball is supported by upper and lower trunnions (bearings), reducing operating torque and enabling high-pressure, large-size applications .
Reduced Bore (4″x3″): Optimized flow path for pressure drop management and cost efficiency.
Double Block & Bleed (DBB): Provides positive isolation from both upstream and downstream pressure, with the ability to bleed/vent the body cavity .
Emergency Sealant Injection: Fittings allow injection of sealant into seats and stem in case of seal damage, providing emergency shut-off capability .
Cavity Pressure Relief: Self-relieving seats prevent dangerous over-pressure in the ball cavity due to thermal expansion .
Anti-Static Device: Ensures electrical continuity across the valve to prevent spark ignition in flammable services .
Fire-Safe Design: Optional API 607/6FA certification ensures sealing integrity in case of fire .
Blow-out Proof Stem: Stem is retained within the valve body even if the gland is removed under pressure .
ISO 5211 Mounting Pad: Standardized mounting for easy actuator installation .
Bidirectional Sealing: Suitable for flow in either direction.

Main Applications:

Oil & Gas Pipelines: Transmission and distribution lines requiring DBB isolation .
Refineries & Petrochemical Plants: Hydrocarbon processing, high-pressure fluid handling.
Offshore Platforms: Compact design for space-constrained applications .
Power Generation: Steam and high-pressure water systems.
LNG & Cryogenic Plants: With extended bonnet and low-temperature materials.
Subsea & Pipeline Terminals: Where high integrity isolation is required.

Disclaimer: The above data is prepared based on common industry standards (API 6D, ASME B16.34) for trunnion ball valves. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement and certified drawings shall prevail.

보증:

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