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2″-300LB Cryogenic 3-Way Floating Ball Valve Ready For Actuators

2″-300LB Cryogenic 3-Way Floating Ball Valve Ready For Actuators

Size 2 inches (DN50)
Pressure Class Class 300 LB (PN50 / 750 PSI)
Body Material Stainless Steel (ASTM A182 F304 / F316 / F316L)
Manufacturing Process Forged Steel / Cast Steel (depending on manufacturer)
Design Standard API 6D / ASME B16.34 / BS 6364 (Cryogenic)
End Connection Standard ASME B16.5 (Flanged RF) / ASME B16.25 (BW) / ASME B1.20.1 (NPT)
Face to Face Standard ASME B16.10
Test & Inspection Std. API 598 / BS 6364 (Cryogenic Test)
Fire-Safe Design API 607 / API 6FA (Optional)
Fugitive Emission ISO 15848-1 (Optional)

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TECHNICAL DATA SHEET

Product Name: 2-inch 300LB Stainless Steel Cryogenic 3-Way Floating Ball Valve
Model/Specification: 2″-300LB-CRYO-3WAY
Loại van: 3-Way Floating Ball Valve (Cryogenic Service)
Connection Type: Flanged (RF) / Butt Weld (BW) / Threaded (NPT) User specified

  1. Basic Design Parameters

Tham số

Standard/Specification

Kích cỡ

2 inches (DN50)

Pressure Class

Class 300 LB (PN50 / 750 PSI)

Vật liệu thân máy

Stainless Steel (ASTM A182 F304 / F316 / F316L)

Manufacturing Process

Forged Steel / Cast Steel (depending on manufacturer)

Design Standard

API 6D / ASME B16.34 / BS 6364 (Cryogenic)

End Connection Standard

ASME B16.5 (Flanged RF) / ASME B16.25 (BW) / ASME B1.20.1 (NPT)

Face to Face Standard

ASME B16.10

Test & Inspection Std.

API 598 / BS 6364 (Cryogenic Test)

Fire-Safe Design

API 607 / API 6FA (Optional)

Fugitive Emission

ISO 15848-1 (Optional)

  1. Technical Specifications

Tham số

Details

Loại van

3-Way Floating Ball Valve, 3-Piece Construction

Flow Pattern

T-Port (for mixing/diverting) / L-Port (for switching) User specified

Bonnet Type

Extended Bonnet (for Cryogenic Service)

Service Temperature

-196°C to +120°C (with PCTFE seats) / Up to +200°C (with PTFE)

Applicable Media

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

Loại lỗ khoan

Full Bore / Reduced Bore (Optional)

Hoạt động

Lever Handle / Gearbox / Pneumatic Actuator / Electric Actuator

Thiết bị chống tĩnh điện

API 608 / API 6D Requirement (Standard)

Blow-Out Proof Stem

Tiêu chuẩn

Cavity Pressure Relief

Self-relieving seat design / Relief hole in ball

Bonnet Installation Angle

Up to 45° from vertical (12″ bonnet, per BS6364)

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

Part Name

Vật liệu

Standard/Grade

Thân hình

Stainless Steel

ASTM A182 F304 / F316 (Forged) or A351 CF8/CF8M (Cast)

Bonnet / Extension

Stainless Steel

ASTM A182 F304 / F316

End Caps

Stainless Steel

ASTM A182 F304 / F316

Quả bóng

Stainless Steel (Hardened)

ASTM A182 F304 / F316 (Chrome plated optional)

Thân cây

Stainless Steel / 17-4PH

ASTM A182 F316 / 17-4PH (High strength)

Seat Seals

PCTFE (KEL-F®) / PTFE / PEEK

PCTFE for cryogenic service

Stem Seals / Packing

PCTFE / Flexible Graphite

Low temperature stable materials

Body Gasket

Spiral Wound

Stainless Steel + Graphite

Thiết bị chống tĩnh điện

Stainless Steel Ball + Spring

316 SS

Body Bolts/Nuts

Stainless Steel

ASTM A193 B8 / A194 8

Handle / Lever

Stainless Steel

ASTM A182 F304

  1. Main Dimensions & Connection Details

*Note: Dimensions are for 2″ Class 300 3-Way Cryogenic Ball Valve with Flanged Ends (RF). BW/NPT dimensions may vary by manufacturer.*

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

Kích cỡ

Pressure Class

L (RF) mm

L (RF) in

H (approx. mm)

W (Handwheel mm)

Weight (approx. kg)

2″

300LB

216

8.5

~230

~280

~30

4.2 Flange Details (Per ASME B16.5 – Class 300)

Tham số

2″ Flange

Flange Diameter (OD)

165 mm (6.5 in)

Bolt Circle Diameter (PCD)

127 mm (5.0 in)

Number of Bolt Holes

8

Bolt Hole Diameter

19 mm (0.75 in)

Bolt Thread Size

5/8″ UNC

Raised Face Height

2 mm (0.06 in)

4.3 Extended Bonnet (Cryogenic Feature)

  • Extension Length: Designed to keep packing box above frost line (typically 200mm – 300mm for 2″ valve, depending on service temperature [-196°C]) .
  • Drip Plate: Included to prevent ice formation on the body/bonnet joint.
  • Heat Transfer Design: Narrow space between stem and bonnet ID for efficient heat transfer .

4.4 Port Configuration

Flow Pattern

Sự miêu tả

T-Port (L-Port)

180° entry and exit for mixing or diverting flow

L-Port (T-Port)

90° entry and exit for flow switching

Note: Specify required flow pattern when ordering.

  1. Pressure-Temperature Rating (ASME B16.34 / Class 300)

*Material Group: Stainless Steel (A182 F304/F316) with PCTFE/PTFE Seats *

Temperature (°C)

Working Pressure (bar)

Working Pressure (psi)

Ghi chú

-196 to -46

50

725

Cryogenic Range (BS 6364 certified)

-29 to 38

50

725

Maximum Rating (Class 300)

50

50

725

 

100

47

680

 

150

44

640

Max for PTFE seats

200

40

580

With PEEK seats

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

  1. Flow Characteristics (2″ – Full Bore)

Tham số

Value

Port Diameter (Full Bore)

~51 mm (2.0 in) (typical for 2″ Class 300)

Flow Coefficient Cv (approx)

~150 – 200 (typical for 2″ full bore ball valve)

Flow Coefficient Kv (approx)

~130 – 170

Shut-off Class

API 598 / BS 6364 (Zero Leakage – Soft Seat)

  1. Test Pressure (API 598 / BS 6364)

Test Type

Medium

Pressure (bar)

Pressure (psi)

Acceptance Criteria

Shell Test (Hydrostatic)

Water

75

1088

1.5 x 38°C Rating (no visible leakage)

High-Pressure Seat Test

Water

55

798

1.1 x 38°C Rating (Zero leakage)

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 .
    • 3-Way Configuration: T-port or L-port design allows for mixing, diverting, or switching flow in cryogenic systems.
    • Extended Bonnet: Protects the stem seals and packing from extreme cold, ensuring operability and preventing ice formation .
    • No-Trap Cavity Design: Relief hole in ball or self-relieving seats prevents dangerous pressure buildup in the ball cavity due to vaporization of trapped cryogenic liquid .
    • Efficient Heat Transfer: Narrow clearance between stem and bonnet extension maintains stem seals at near-ambient temperature .
    • Blow-out Proof Stem: Ensures stem retention under all pressure conditions.
    • Anti-Static Device: Dissipates static charge generated by ball/seat friction, critical for flammable media like LNG .
    • Fire-Safe Design: Optional API 607/6FA certification ensures sealing integrity in case of fire .
    • BS 6364 Certification: Designed and tested to international cryogenic valve standard .
    • Flexible Bonnet Installation: Bonnet can be installed at up to 45° angle for piping flexibility .
  • 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, LPG, and other cryogenic hydrocarbons .
    • Industrial Gas: Cryogenic storage tanks and transfer lines.
    • Refrigeration Systems: Low-temperature industrial refrigeration.

*Disclaimer: The above data is prepared based on common industry standards (API 6D, ASME B16.34, BS 6364) for cryogenic 3-way ball valves . Specific dimensions, materials, and pressure ratings may vary by manufacturer. For cryogenic service (below -46°C), valves must be tested per BS 6364 at -196°C. The final technical agreement and certified drawings shall prevail.

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