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2″-900LB 2-Piece Cryogenic Floating Ball Valve

2″-900LB 2-Piece Cryogenic Floating Ball Valve

Size 2 inches (DN50)
Pressure Class Class 900 LB (PN150 / 2250 PSI)
Body Material Forged Stainless Steel – ASTM A182 F316
Manufacturing Process Forged Steel (Close Die Forged)
Design Standard API 608 / API 6D / ASME B16.34 / BS 6364 (Cryogenic)
End Connection Standard ASME B16.5 – RTJ Flanged (Ring Type Joint)
Face to Face Standard ASME B16.10 / API 6D
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 900LB 2-Piece Cryogenic Floating Ball Valve
Model/Specification: 2″-900LB-CRYO-2PC-RTJ
Typ zaworu: 2-Piece Floating Ball Valve (Cryogenic Service)
Connection Type: RTJ Flanged (Ring Type Joint) – ASME B16.5
Materiał korpusu: Stainless Steel – ASTM A182 F316

  1. Basic Design Parameters

Parametr

Standard/Specification

Rozmiar

2 inches (DN50)

Pressure Class

Class 900 LB (PN150 / 2250 PSI)

Materiał korpusu

Forged Stainless Steel – ASTM A182 F316

Manufacturing Process

Forged Steel (Close Die Forged)

Design Standard

API 608 / API 6D / ASME B16.34 / BS 6364 (Cryogenic)

End Connection Standard

ASME B16.5 – RTJ Flanged (Ring Type Joint)

Face to Face Standard

ASME B16.10 / API 6D

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

Parametr

Details

Typ zaworu

2-Piece Floating Ball Valve, Bolted Body Construction

Body Type

Two-Piece Bolted Body with Side Entry

Bonnet Type

Extended Bonnet (for Cryogenic Service)

Service Temperature

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

Applicable Media

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

Typ otworu

Full Bore (Standard) / Reduced Bore (Optional)

Ball Type

Floating Ball (pressure-assisted sealing)

Seat Type

PCTFE / PEEK (Cryogenic grade soft seats)

Sealing Principle

Upstream sealing – ball floats against downstream seat under pressure

Działanie

Lever Handle / Gearbox / Pneumatic Actuator / Electric Actuator

Urządzenie antystatyczne

API 608 / API 6D Requirement (Standard) – Spring-loaded ball between ball and stem

Blow-Out Proof Stem

Standard

Cavity Pressure Relief

Self-relieving seat design / Relief hole in ball

Bonnet Installation

Integral extended bonnet with drip plate (ice prevention)

Locking Device

Available for safety lockout

  1. Material of Construction (F316 Stainless Steel)

Part Name

Material

Standard/Grade

Body (2 pieces)

Forged Stainless Steel – F316

ASTM A182 F316

End Connector (RTJ)

Forged Stainless Steel – F316

ASTM A182 F316

Piłka

Stainless Steel – F316 (Hardened, Chrome plated optional)

ASTM A182 F316

Trzon

Stainless Steel – F316 / 17-4PH

ASTM A182 F316 / 17-4PH

Seat Rings

PCTFE (KEL-F®) / PEEK

Cryogenic grade, self-relieving

Body Gasket

Spiral Wound

Stainless Steel + Graphite

Stem Seals / Packing

PCTFE / Flexible Graphite

Low temperature stable materials

Thrust Bearings

PTFE + Stainless Steel

Self-lubricating

Urządzenie antystatyczne

Stainless Steel Ball + Spring

316 SS

Body Bolts/Nuts

Stainless Steel – B8 / 8

ASTM A193 B8 / A194 8

Drip Plate

Stainless Steel – F316

Welded to bonnet

Handle / Gear

Stainless Steel / Carbon Steel

With locking option

  1. Main Dimensions & Connection Details

Note: Dimensions for 2″ Class 900 RTJ Flanged Cryogenic Ball Valve. Based on ASME B16.10, API 6D, and industry standards for cryogenic extended bonnet.

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

Rozmiar

Pressure Class

L (RTJ) mm

L (RTJ) in

H (Open) mm

H (Open) in

W (Gear) mm

Weight (approx. kg)

2″

900LB

368

14.5

~450

~17.7

~350

~60-80

Note: Height (H) includes extended bonnet for cryogenic service. Weight depends on actuator/gearbox choice.

4.2 RTJ Flange Details (Per ASME B16.5 – Class 900)

Parametr

2″ RTJ Flange

Flange Diameter (OD)

215 mm (8.5 in)

Bolt Circle Diameter (PCD)

165.1 mm (6.5 in)

Number of Bolt Holes

8

Bolt Hole Diameter

25.4 mm (1.0 in)

Bolt Thread Size

7/8″ UNC

RTJ Groove Number

R-20 or RX-35 (per ASME B16.20)

Groove Depth

8.5 mm (0.33 in) approx.

Hub Diameter

127 mm (5.0 in)

Ring Gasket Material

Soft Iron / Stainless Steel (as per service)

4.3 Extended Bonnet (Cryogenic Feature)

  • Extension Length: Designed to keep stem packing above frost line (typically 200-300 mm for 2″ valve at -196°C).
  • Drip Plate: Included to prevent ice formation on body/bonnet joint.
  • Heat Transfer Design: Narrow clearance between stem and bonnet ID ensures packing near ambient temperature.
  • Material: F316 stainless steel (same as body).
  1. Pressure-Temperature Rating (ASME B16.34 / Class 900)

*Material Group: Stainless Steel – ASTM A182 F316 with PCTFE/PEEK seats*

Temperature (°C)

Working Pressure (bar)

Working Pressure (psi)

Notatki

-196 to -46

150

2175

Cryogenic Range (BS 6364 certified)

-29 to 38

150

2175

Maximum Rating (Class 900)

50

148

2145

 

100

140

2030

 

150

132

1915

Max for PCTFE

200

124

1800

With PEEK seats

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

  1. Test Pressure (API 598 / BS 6364)

Test Type

Medium

Pressure (bar)

Pressure (psi)

Acceptance Criteria

Shell Test (Hydrostatic)

Water

225

3260

1.5 x 38°C Rating (no visible leakage)

High-Pressure Seat Test

Water

165

2390

1.1 x 38°C Rating (Zero leakage – soft seats)

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. Flow Characteristics (2″ – Full Bore)

Parametr

Value

Port Diameter (Full Bore)

~51 mm (2.0 in)

Flow Coefficient Cv (approx)

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

Flow Coefficient Kv (approx)

~130 – 170

Flow Characteristic

Quick Opening (On-Off)

Shut-off Class

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

Typ otworu

Full Bore (minimal pressure drop)

  1. Features & Applications
  • Key Features:
    • 2-Piece Forged Body: Allows in-line maintenance of trim while providing robust, leak-free construction.
    • 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 stem seals from extreme cold, ensuring operability and preventing ice formation.
    • Floating Ball Design: Ball floats against downstream seat, providing tight, bidirectional sealing.
    • RTJ Flanged Ends: Metal-to-metal ring joint seal for high-pressure and high-integrity applications.
    • No-Trap Cavity Design: Relief hole in ball or self-relieving seats prevents dangerous pressure buildup due to vaporization of trapped cryogenic liquid.
    • Anti-Static Device: Dissipates static charge, critical for flammable media like LNG.
    • Blow-out Proof Stem: Retained within body even if gland is removed.
    • Fire-Safe Design: Optional API 607 certification ensures sealing integrity in case of fire.
    • BS 6364 Certification: Designed and tested to international cryogenic valve standard.
    • NACE MR0175 Compliance: Optional for sour service (H₂S) environments.
    • Lockable Handle / Gear: Safety lockout capability for maintenance.
  • Main Applications:
    • LNG (Liquefied Natural Gas): Liquefaction, storage, transportation, and regasification plants.
    • Air Separation Units (ASU): Handling LOX, LIN, LAr.
    • Petrochemical: Ethylene, propylene, LPG, and other cryogenic hydrocarbons.
    • Industrial Gas: Cryogenic storage tanks and transfer lines.
    • Refrigeration Systems: Low-temperature industrial refrigeration.
    • High-Pressure Cryogenic Systems: Class 900 applications.
  1. Comparison: 2-Piece vs. 3-Piece Design

Feature

2-Piece Construction

3-Piece Construction

Body Joints

One bolted joint (body to end cap)

Two bolted joints (end caps to center body)

In-Line Maintenance

Limited – requires removal from line for full trim access

Easy – end caps can be removed without taking valve out of line

Weight

Lighter

Slightly heavier

Cost

Lower

Higher

Typical Use

General purpose, cost-sensitive

High-maintenance, frequent cleaning applications

*For cryogenic service, 2-piece design offers reliable performance with fewer potential leak paths.*

  1. Ordering Information

Please specify when ordering:

  1. Valve size: 2″ (DN50)
  2. Pressure class: 900LB
  3. Body material: F316 (ASTM A182 F316)
  4. End connections: RTJ Flanged (ASME B16.5)
  5. Seat material: PCTFE / PEEK
  6. Bore type: Full Bore (Standard)
  7. Operation: Lever handle / Gearbox / Pneumatic actuator / Electric actuator
  8. Special requirements: Fire-safe (API 607), NACE MR0175, oxygen cleaning, PMI testing
  9. Certifications: Material Test Reports (EN 10204 3.1/3.2), BS 6364 cryogenic test certificate

*Disclaimer: The above data is prepared based on common industry standards (API 608, API 6D, ASME B16.34, BS 6364) for 2-piece cryogenic floating ball valves with RTJ ends . RTJ flanges provide reliable metal-to-metal sealing at high pressures and low temperatures. Specific dimensions may vary by manufacturer. The final technical agreement and certified drawings shall prevail.*

GWARANCJA:

SAVVY VALVES zobowiązuje się do dostarczania wyjątkowej jakości produktów i bezproblemowej obsługi posprzedażowej. Gwarantujemy, że nasze zawory zapewnią minimalny okres eksploatacji wynoszący 12 miesięcy, podczas którego dostarczymy bezpłatnie wszystkie niezbędne części zamienne i szczegółowe instrukcje dotyczące konserwacji. W okresie gwarancyjnym, jeśli wystąpią jakiekolwiek uszkodzenia niespowodowane przez człowieka, wymienimy komponenty bezpłatnie i zapewnimy profesjonalne wsparcie techniczne. Po wygaśnięciu gwarancji klienci muszą zapłacić jedynie za koszt części zamiennych, nadal korzystając z usług konserwacyjnych po obniżonych cenach. Naszym celem jest pomoc klientom w obniżeniu kosztów operacyjnych i zwiększeniu wydajności produkcji dzięki niezawodnej jakości i kompleksowemu wsparciu posprzedażowemu. Niezależnie od tego, czy chodzi o zapytania techniczne, czy potrzeby konserwacyjne, nasz zespół ekspertów odpowie szybko, aby zapewnić, że Twój system zaworów zawsze będzie utrzymywał optymalną wydajność.

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