robinet à soupape cryogénique

cryogenic valves

cryogenic valves pdf

lng cryogenic valves

valve cryogenic

1/2″-2500LB Cryogenic Globe Valve

1/2″-2500LB Cryogenic Globe Valve

Size 1/2 inch (DN15)
Pressure Class Class 2500 LB (PN420)
Body Material Stainless Steel (ASTM A182 F304 / F304L / F316 / F316L)
Manufacturing Process Forged Steel (Close Die Forged)
Design Standard API 602 / ASME B16.34 / BS 6364
End Connection Standard ASME B16.25 (BW) / ASME B16.11 (SW) / ASME B1.20.1 (NPT)
Face to Face Standard ASME B16.10 or Manufacturer Standard
Test & Inspection Std. API 598 / BS 6364 (Cryogenic Test)
Fugitive Emission Compliance ISO 15848-1 / API 624 (Optional)

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
Type de vanne : Globe Valve (Cryogenic Service)
Connection Type: Butt Weld (BW) / Socket Weld (SW) / Threaded (NPT) User specified

  1. Basic Design Parameters

Paramètre

Standard/Specification

Taille

1/2 inch (DN15)

Pressure Class

Class 2500 LB (PN420)

Matériau du corps

Stainless Steel (ASTM A182 F304 / F304L / F316 / F316L)

Manufacturing Process

Forged Steel (Close Die Forged)

Design Standard

API 602 / ASME B16.34 / BS 6364

End Connection Standard

ASME B16.25 (BW) / ASME B16.11 (SW) / ASME B1.20.1 (NPT)

Face to Face Standard

ASME B16.10 or Manufacturer Standard

Test & Inspection Std.

API 598 / BS 6364 (Cryogenic Test)

Fugitive Emission Compliance

ISO 15848-1 / API 624 (Optional)

  1. Technical Specifications

Paramètre

Details

Type de vanne

Straight Pattern Globe Valve, Cryogenic Service

Bonnet Type

Bolted Bonnet with Integral Extended Bonnet (for cryogenic service)

Stem Type

Outside Screw and Yoke (OS&Y), Rising Stem

Disc Type

Parabolic / Needle-type Disc (for throttling)

Service Temperature

-196°C to +200°C (depending on trim)

Applicable Media

LNG, LOX, LIN, LAr, Ethylene, and other cryogenic fluids

Opération

Handwheel / Gearbox / Pneumatic Actuator / Electric Actuator

Backseat Design

Standard (Protects packing when valve fully open)

  1. Material of Construction (Recommended – Stainless Steel for Cryogenic)

Part Name

Matériel

Standard/Grade

Corps

Forged Stainless Steel

ASTM A182 F304 / F304L / F316 / F316L

Bonnet

Forged Stainless Steel

ASTM A182 F304 / F304L / F316 / F316L

Disc / Wedge

Stainless Steel

ASTM A182 F304 / F316

Seat Ring

Stainless Steel (Integral)

ASTM A182 F304 / F316

Tige

Stainless Steel

ASTM A182 F304 / F316

Gasket

Flexible Graphite + Stainless Steel

Spiral Wound / Reinforced

Packing

Flexible Graphite

Low temperature stable

Gland

Stainless Steel

ASTM A182 F304 / F316

Gland Flange

Stainless Steel

ASTM A182 F304 / F316

Bolts / Nuts

Stainless Steel

ASTM A193 B8 / A194 8

Handwheel

Malleable Iron / Stainless Steel

A197 / ASTM A182 F304

  1. 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)

Taille

Pressure Class

Connection Type

L (mm)

L (in)

H (Closed) mm

H (Closed) in

W (Handwheel) mm

W (Handwheel) in

Weight (kg)

Weight (lbs)

1/2″

2500LB

BW / SW / NPT

165

6.5

~230

~9.1

~125

~4.9

~2.5

~5.5

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)

Connection Type

Standard

Details

Soudure bout à bout (BW)

ASME B16.25

Bevel Angle: 37.5°, Root Face: 1.6 mm, Counterbore to match pipe schedule (e.g., Sch. 160, XXS)

Socket Weld (SW)

ASME B16.11

Socket depth per standard, Bore diameter to match pipe

Threaded (NPT)

ASME B1.20.1

Tapered pipe threads, 1/2″ NPT

  1. Pressure-Temperature Rating (ASME B16.34)

*Material Group: Stainless Steel (A182 F304/F316)*

Temperature (°C)

Working Pressure (bar)

Working Pressure (psi)

Notes

-196 to -29

420

6090

Cryogenic Range (BS 6364 certified)

-29 to 38

420

6090

Maximum Rating

50

420

6090

 

100

395

5730

 

150

375

5440

 

200

360

5220

Maximum temperature for standard trim

*Note: For cryogenic service (below -46°C), valves are typically tested and certified per BS 6364 at -196°C.*

  1. Flow Characteristics (1/2″ – Full Bore)

Paramètre

Value

Flow Coefficient Cv (US gal/min)

~3.0 – 4.0 (typical for 1/2″ Class 2500 globe valve)

Flow Coefficient Kv (m³/h)

~2.6 – 3.5

Port Diameter

~9.5 mm (0.375 in) (typical for 1/2″ Class 2500)

  1. Test Pressure (API 598 / BS 6364)

Test Type

Medium

Pressure (bar)

Pressure (psi)

Acceptance Criteria

Shell Test (Hydrostatic)

Water

630

9135

1.5 x 38°C Rating (no visible leakage)

High-Pressure Seat Test

Water

462

6700

1.1 x 38°C Rating (Rate A/B per API 598)

Low-Pressure Seat Test

Air / N2

5.5 – 7.0

80 – 100

Bubble-tight

Cryogenic Seat Test

Helium / N2

@ Rated Pressure

@ Rated Pressure

Per BS 6364 at -196°C

  1. 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.

GARANTIE :

SAVVY VALVES s'engage à fournir des produits d'une qualité exceptionnelle et un service après-vente sans souci. Nos vannes sont garanties pour une durée de vie minimale de 12 mois, période durant laquelle nous fournissons gratuitement toutes les pièces de rechange nécessaires et des instructions d'entretien détaillées. Pendant la période de garantie, en cas de dommage non causé par l'homme, nous remplaçons gratuitement les composants et fournissons une assistance technique professionnelle. Après l'expiration de la garantie, seuls les pièces de rechange sont à votre charge, tout en bénéficiant de services de maintenance à prix réduits. Notre objectif est d'aider nos clients à réduire leurs coûts d'exploitation et à optimiser leur production grâce à une qualité fiable et un service après-vente complet. Qu'il s'agisse de questions techniques ou de besoins de maintenance, notre équipe d'experts répondra rapidement pour garantir le fonctionnement optimal de votre système de vannes.

Si vous êtes intéressé par nos produits, vous pouvez choisir de laisser vos informations ici et nous vous contacterons sous peu.