DN80-PN16 SS Bellow Seal Globe Valve

Size DN80 (3 inches)
Pressure Class PN16 (16 bar / 232 psi)
Body Material Stainless Steel (ASTM A351 CF8 / CF8M / AISI 304 / 316L)
Design Standard DIN EN 13709 / DIN 3356 / EN 12516-1
End Connection Standard EN 1092-1 PN10/16 (Flanged RF)
Face to Face Standard EN 558-1 / DIN 3202 F1
Test & Inspection Std. EN 12266-1 / DIN 3230
Emission Compliance TA-Luft / ISO 15848-1 (optional)

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TECHNICAL DATA SHEET

Product Name: DN80 PN16 Stainless Steel Bellows Seal Globe Valve
Model/Specification: DN80-PN16-SS-Bellow
밸브 유형: Globe Valve (Bellows Sealed)
Connection Type: Flanged (RF)

Basic Design Parameters

매개변수	Standard/Specification
크기	DN80 (3 inches)
Pressure Class	PN16 (16 bar / 232 psi)
본체 재질	Stainless Steel (ASTM A351 CF8 / CF8M / AISI 304 / 316L)
Design Standard	DIN EN 13709 / DIN 3356 / EN 12516-1
End Connection Standard	EN 1092-1 PN10/16 (Flanged RF)
Face to Face Standard	EN 558-1 / DIN 3202 F1
Test & Inspection Std.	EN 12266-1 / DIN 3230
Emission Compliance	TA-Luft / ISO 15848-1 (optional)

Technical Specifications

매개변수	Details
밸브 유형	Through Way Globe Valve, Bellows Sealed
Bonnet Type	Bolted Bonnet with Extended Bellows Assembly
Stem Type	Outside Screw and Yoke (OS&Y), Rising Stem
Disc Type	Parabolic / Needle-type Disc (for throttling)
Sealing Principle	Double seal: Primary Bellows Seal + Secondary Gland Packing
Bellows Material	Stainless Steel (AISI 304 / 316L)
Applicable Media	Steam, Thermal Oil, Heat Transfer Fluids, Corrosive Media, Hazardous Fluids
온도 범위	-20°C to +350°C (depending on trim & seats)
작업	Handwheel (standard) / Gearbox / Actuator

Material of Construction (Recommended – Stainless Steel)

Part Name	재료	Standard/Grade
몸	Stainless Steel	ASTM A351 CF8 (304) / CF8M (316) / AISI 316L
Bonnet	Stainless Steel	ASTM A351 CF8 / CF8M
Disc / Plug	Stainless Steel + Hardfacing (optional)	A351 CF8/CF8M + Stellite
Seat Ring	Stainless Steel (Integral or Renewable)	A351 CF8/CF8M (Hardened)
줄기	Stainless Steel	ASTM A276 420 / A182 F304/F316 (ground and polished)
Bellows	Stainless Steel	AISI 304 / 316L
Bonnet Gasket	Spiral Wound / Graphite + SS	Low-emission, TÜV certified (optional)
Packing (Backup)	Flexible Graphite (Low Sulfur)	M800 series (C >99%, S <50 PPM)
Stem Nut	Aluminum Bronze / Brass	CuAl10Fe3 / C95400
Studs/Nuts	Stainless Steel	ASTM A193 B8 / A194 8
Handwheel	Malleable Iron / Ductile Iron / SS	ASTM A536

Main Dimensions & Flange Details

*Note: Based on EN 558-1 (Series 1) and EN 1092-1 standards. Dimensions are for Flanged Ends (RF).*

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

크기	PN Rating	L (mm)	H (approx. mm)	W (Handwheel mm)	Weight (approx. kg)
DN80	PN16	310	290	200	24

4.2 Flange Details (Per EN 1092-1 – Type 11 / PN16)

Flange Outside Diameter (D): 200 mm
Bolt Circle Diameter (PCD / k): 160 mm
Number of Bolt Holes: 8
Bolt Hole Diameter (d2): 18 mm
Bolt Thread Size: M16
Raised Face Height: 3 mm
Flange Thickness (C): ~20 mm

Pressure-Temperature Rating (EN 12516-1 / DIN 2401)

*Material Group: Stainless Steel (CF8/CF8M)*

Temperature (°C)	Max. Working Pressure (bar)	노트
-20 to 50	16.0	Maximum rating
100	14.5
150	13.5
200	12.5
250	11.5
300	10.5
350	10.0	Max. temp for standard seats

Flow Characteristics (DN80 – PN16)

매개변수	Value
Flow Coefficient Kv (m³/h)	120
Flow Characteristic	Linear / Equal Percentage (depending on trim)
Seat Leakage Class	Class V / VI (metal seat) / Zero leakage (soft seat – optional)

Test Pressure (EN 12266-1)

Test Type	Medium	Pressure (bar)	Acceptance Criteria
Shell Test	Water	24.0	1.5 x PN (no visible leakage)
Seat Test (High Pressure)	Water	17.6	1.1 x PN (Rate A / B per standard)
Seat Test (Low Pressure)	Air / N2	5.5 – 6.0	Bubble-tight
Bellows Integrity Test	Air / Helium	6.0 – 10.0	No leakage / Mass spec test optional

Features & Applications

Key Features:

Zero Leakage Stem Seal: The stainless steel bellows is welded to the stem and bonnet, creating a hermetic seal that eliminates fugitive emissions and prevents product loss.
Double Safety: A secondary graphite packing provides backup sealing in the unlikely event of bellows failure, ensuring operational safety.
Maintenance-Free Operation: Eliminates the need for regular packing gland adjustments, reducing maintenance costs and downtime.
Long Cycle Life: Bellows design is tested for thousands of cycles without fatigue, ideal for frequent operation.
Excellent Throttling Capability: Globe valve design provides precise flow control and regulation.
Corrosion Resistance: Full stainless steel construction (body, bonnet, bellows) offers superior resistance to corrosive media.
TA-Luft / ISO 15848 Compliance: Optional low-emission packing and gaskets meet stringent fugitive emission standards.
Backseat Design: Protects bellows and packing when valve is fully open.

Main Applications:

Thermal Oil Systems & Heat Transfer Fluids: Prevents leakage of high-temperature oils.
Steam Systems (Power Plants, Process Industry): Eliminates steam leaks to atmosphere.
Chemical & Petrochemical Processing: Handling toxic, hazardous, or corrosive fluids.
Pharmaceutical & Food Industry: Sanitary design, prevents contamination.
Refineries: Hydrocarbon services requiring zero leakage.
High-Purity Applications: Where process contamination must be avoided.

Disclaimer: The above data is prepared based on common European standards (DIN/EN) for bellows seal globe valves. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement shall prevail.

보증:

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