1/2″-2500LB Cryogenic Globe Valve
TECHNICAL DATA SHEET
Product Name: 1/2-inch 2500LB Stainless Steel Cryogenic Globe Valve
Model/Specification: 1/2″-2500LB-CRYO-GLOBE
밸브 유형: Globe Valve (Cryogenic Service)
Connection Type: Butt Weld (BW) / Socket Weld (SW) / Threaded (NPT) User specified
- Basic Design Parameters
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매개변수
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Standard/Specification
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크기
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1/2 inch (DN15)
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Pressure Class
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Class 2500 LB (PN420)
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본체 재질
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Stainless Steel (ASTM A182 F304 / F304L / F316 / F316L)
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Manufacturing Process
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Forged Steel (Close Die Forged)
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Design Standard
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API 602 / ASME B16.34 / BS 6364
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End Connection Standard
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ASME B16.25 (BW) / ASME B16.11 (SW) / ASME B1.20.1 (NPT)
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Face to Face Standard
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ASME B16.10 or Manufacturer Standard
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Test & Inspection Std.
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API 598 / BS 6364 (Cryogenic Test)
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Fugitive Emission Compliance
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ISO 15848-1 / API 624 (Optional)
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- Technical Specifications
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매개변수
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Details
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밸브 유형
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Straight Pattern Globe Valve, Cryogenic Service
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Bonnet Type
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Bolted Bonnet with Integral Extended Bonnet (for cryogenic service)
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Stem Type
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Outside Screw and Yoke (OS&Y), Rising Stem
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Disc Type
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Parabolic / Needle-type Disc (for throttling)
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Service Temperature
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-196°C to +200°C (depending on trim)
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Applicable Media
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LNG, LOX, LIN, LAr, Ethylene, and other cryogenic fluids
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작업
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Handwheel / Gearbox / Pneumatic Actuator / Electric Actuator
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Backseat Design
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Standard (Protects packing when valve fully open)
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- Material of Construction (Recommended – Stainless Steel for Cryogenic)
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Part Name
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재료
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Standard/Grade
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몸
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Forged Stainless Steel
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ASTM A182 F304 / F304L / F316 / F316L
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Bonnet
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Forged Stainless Steel
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ASTM A182 F304 / F304L / F316 / F316L
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Disc / Wedge
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Stainless Steel
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ASTM A182 F304 / F316
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Seat Ring
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Stainless Steel (Integral)
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ASTM A182 F304 / F316
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줄기
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Stainless Steel
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ASTM A182 F304 / F316
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Gasket
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Flexible Graphite + Stainless Steel
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Spiral Wound / Reinforced
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Packing
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Flexible Graphite
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Low temperature stable
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Gland
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Stainless Steel
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ASTM A182 F304 / F316
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Gland Flange
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Stainless Steel
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ASTM A182 F304 / F316
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Bolts / Nuts
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Stainless Steel
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ASTM A193 B8 / A194 8
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Handwheel
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Malleable Iron / Stainless Steel
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A197 / ASTM A182 F304
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- Main Dimensions & End Connection Details
*Note: Dimensions are for 1/2″ Forged Steel Cryogenic Globe Valve. BW/SW/NPT dimensions may vary by manufacturer. Consult manufacturer for exact dimensions.*
4.1 End-to-End Dimensions (Approximate)
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크기
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Pressure Class
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Connection Type
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L (mm)
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L (in)
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H (Closed) mm
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H (Closed) in
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W (Handwheel) mm
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W (Handwheel) in
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Weight (kg)
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Weight (lbs)
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1/2″
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2500LB
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BW / SW / NPT
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165
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6.5
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~230
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~9.1
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~125
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~4.9
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~2.5
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~5.5
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4.2 Extended Bonnet (Cryogenic Feature)
- Extension Length: Designed to keep packing box above frost line (typically 150mm – 200mm for 1/2″ valve, depending on service temperature [-196°C]).
- Drip Plate: Included to prevent ice formation on the body/bonnet joint.
4.3 End Preparation Details (Per ASME Standards)
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Connection Type
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기준
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Details
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맞대기 용접(BW)
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ASME B16.25
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Bevel Angle: 37.5°, Root Face: 1.6 mm, Counterbore to match pipe schedule (e.g., Sch. 160, XXS)
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Socket Weld (SW)
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ASME B16.11
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Socket depth per standard, Bore diameter to match pipe
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Threaded (NPT)
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ASME B1.20.1
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Tapered pipe threads, 1/2″ NPT
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- Pressure-Temperature Rating (ASME B16.34)
*Material Group: Stainless Steel (A182 F304/F316)*
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Temperature (°C)
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Working Pressure (bar)
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Working Pressure (psi)
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노트
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-196 to -29
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420
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6090
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Cryogenic Range (BS 6364 certified)
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-29 to 38
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420
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6090
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Maximum Rating
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50
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420
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6090
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100
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395
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5730
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150
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375
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5440
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200
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360
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5220
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Maximum temperature for standard trim
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*Note: For cryogenic service (below -46°C), valves are typically tested and certified per BS 6364 at -196°C.*
- Flow Characteristics (1/2″ – Full Bore)
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매개변수
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Value
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Flow Coefficient Cv (US gal/min)
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~3.0 – 4.0 (typical for 1/2″ Class 2500 globe valve)
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Flow Coefficient Kv (m³/h)
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~2.6 – 3.5
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Port Diameter
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~9.5 mm (0.375 in) (typical for 1/2″ Class 2500)
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- Test Pressure (API 598 / BS 6364)
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Test Type
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Medium
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Pressure (bar)
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Pressure (psi)
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Acceptance Criteria
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Shell Test (Hydrostatic)
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Water
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630
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9135
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1.5 x 38°C Rating (no visible leakage)
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High-Pressure Seat Test
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Water
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462
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6700
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1.1 x 38°C Rating (Rate A/B per API 598)
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Low-Pressure Seat Test
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Air / N2
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5.5 – 7.0
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80 – 100
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Bubble-tight
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Cryogenic Seat Test
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Helium / N2
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@ Rated Pressure
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@ Rated Pressure
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Per BS 6364 at -196°C
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- Features & Applications
- Key Features:
- Cryogenic Service Capability: Designed for temperatures as low as -196°C (-320°F) , suitable for LNG, LOX, LIN, and other liquefied gases .
- Extended Bonnet: Protects the stem seals and packing from extreme cold, ensuring operability and preventing ice formation .
- Forged Body Construction: Provides superior strength and reliability at high pressures (2500LB) and low temperatures .
- Excellent Throttling Capability: Globe valve design provides precise flow control and regulation.
- OS&Y Design: Provides visual indication of valve position and prevents stem thread exposure to media .
- Backseat Design: Protects packing from system pressure when valve is fully open.
- BS 6364 Certification: Designed and tested to international cryogenic valve standard .
- Low Fugitive Emissions: Optional ISO 15848-1 certification for environmental compliance .
- Main Applications:
- LNG (Liquefied Natural Gas): Liquefaction, storage, transportation, and regasification plants .
- Air Separation Units (ASU): Handling LOX (Liquid Oxygen), LIN (Liquid Nitrogen), LAr (Liquid Argon) .
- Petrochemical: Handling ethylene, methane, and other cryogenic hydrocarbons.
- Industrial Gas: Cryogenic storage tanks and transfer lines .
- Refinery: High-pressure cryogenic applications .
Disclaimer: The above data is prepared based on common standards for cryogenic globe valves. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement shall prevail.
보증:
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