Bellow Seal Globe Valves Close Die Forged
Bellow Seal Globe Valves Close Die Forged - Image 2
Bellow Seal Globe Valves Close Die Forged - Image 3
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Bellow Seal Globe Valves Close Die Forged

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Description

TECHNICAL DATA SHEET
BELLOW SEAL GLOBE VALVE – CLOSE DIE FORGED

Item Description
Valve Type Bellow Seal Globe Valve, Straight Pattern / Y-Pattern
Forging Process Close Die Forged (Body & Bonnet) – High integrity, no flash, refined grain structure
Design Standard ASME B16.34, API 602, BS EN 13709, ISO 15761
Face-to-Face ASME B16.10 (Globe Valve)
End Connection Flanged (ASME B16.5), Butt Weld (ASME B16.25), Socket Weld (ASME B16.11), Threaded (ASME B1.20.1)
Nominal Size ½” – 4” (DN15 – DN100)
Pressure Class Class 150, 300, 600, 800, 900, 1500, 2500 (others on request)
Body Material ASTM A105 / A105N, A182 F304/F304L, A182 F316/F316L, A182 F51 (Duplex), A182 F11/F22, Inconel 625, Monel, etc.
Bonnet Material Same as Body, Close Die Forged, Extended Bonnet (cryogenic/hot service optional)
Disc / Seat Integral seat hard-faced with Stellite Gr.6 (HF); optional renewable seat ring; disc guided
Stem Material ASTM A276 Type 410, 304, 316, 17-4PH; Polished stem surface
Bellow Assembly Multi-ply metallic bellow, welded to stem & bonnet plug; material: SS316L, SS321, Inconel 625, Hastelloy C-276
Primary Sealing Bellow (zero emission to atmosphere) – tested according to ISO 15848-1 / API 624
Secondary Sealing Packing: Pure Graphite / PTFE (backup safety sealing)
Operation Handwheel (standard), Gearbox (on request), Pneumatic / Electric Actuator (on request)
Testing Standard API 598, BS EN 12266-1; Bellow leak test: Helium mass spectrometer (optional)
Pressure / Temperature Rating According to ASME B16.34 material group; typical range -196°C to +450°C (wider range with special materials)
Applicable Media Thermal oil, steam, heat transfer fluids, toxic gases, flammable fluids, chlorine, vacuum services
Certification EN 10204 3.1 material certificate, Hydro-test & pneumatic test reports, ISO 9001, PED 2014/68/EU (optional)
Additional Features Anti-static device, fire-safe design (API 607 / API 6FA optional), locking device, position indicator
Service Life Bellow design for 10,000+ cycles under recommended conditions
Special Notes:

The close die forging technology provides superior mechanical strength, minimal porosity, and excellent surface finish compared to sand casting or open-die forging. It is especially suitable for high-pressure and high-temperature applications.

All dimensions and material grades can be customized to project specifications. Please provide service conditions (fluid, design pressure & temperature, line size) for a detailed quotation.

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