Cryogenic Open Die Forged Globe Valve

Description

CRYOGENIC MONOBLOC FREE-FORGED GLOBE VALVE
Model: MF-CGV-F304-CL1500
(Monobloc Forged · Cryo Globe Valve · F304 · Class 1500)

1. Key Designation Features
   Term Significance
   Monobloc Free-Forged Single-piece body/bonnet forged from solid F304 billet (no welds/seams)
   F304 Austenitic stainless steel for cryogenic toughness (ASTM A182 compliant)
   CL1500 ASME Class 1500 pressure rating (250 bar @ -196°C)
   2. Critical Specifications
   Parameter Specification
   Body/Bonnet Single-Piece Free-Forged F304
   • Forging Ratio ≥ 4:1
   • Solution Annealed per ASTM A961
   Size Range ½” to 4″ (DN15-DN100)
   Temp Range -196°C to +100°C (LNG, LN2, LOx service)
   Seat/Seal Stellite 6 hardfaced disc + Flexible graphite/PTFE stem packing
   Cryo Extension Standard 250mm bonnet (2″ valve, scalable per size)
   Compliance BS 6364, ISO 28921-1, ASME B16.34
   3. Why Monobloc Free-Forged?
   Benefit Technical Impact
   Zero Weld Lines Eliminates HAZ cracks at cryogenic temps
   Grain Flow Continuity Forging aligns grain structure → 50% higher impact toughness at -196°C (vs. cast)
   No Corrosion Traps Seamless interior reduces pitting risk in LNG
   Pressure Integrity Homogeneous material withstands thermal shocks
   4. Testing & Certification
   Test Standard Requirement
   Charpy V-Impact ASTM A370 ≥ 45J @ -196°C (body material)
   Helium Seat Test BS 6364 Annex A ≤ 1×10⁻⁶ mbar·L/s leakage @ -196°C
   Cryo Pressure Test ISO 28921-1 1.5x rated pressure @ -196°C (30 min hold)
   Material Certs EN 10204 3.1 Full traceability of forging billet
   5. Ordering Code Example
   MF-CGV-F304-2″-1500-RF-BS6364-OSY

MF: Monobloc Free-Forged

CGV: Cryogenic Globe Valve

F304: Body Material

2″: Size

1500: ASME Class

RF: Raised Face Flange

BS6364: Design Standard

OSY: Outside Screw & Yoke

6. Applications
   LNG terminals (Liquid methane @ -162°C)
   Air Separation Plants (LN2 @ -196°C, LOx @ -183°C)
    Liquid Hydrogen Systems (-253°C, with SS316L upgrade)

 For Oxygen Service: Mandatory ASTM G93 cleaning + non-sparking stem tips

7. Documentation
   Forging Maps: Ultrasonic Testing (UT) reports per EN 10228-3

Cryogenic Test Certificates: Leakage/performance data at -196°C

Material Chemical Analysis: ASTM A751 (C ≤ 0.08%, S ≤ 0.015%)

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.