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1/2″-800LB Cryogenic Floating Ball Valve

1/2″-800LB Cryogenic Floating Ball Valve

Size 1/2 inch (DN 15)
Pressure Class Class 800 LB (PN 130)
Body Material Stainless Steel (ASTM A182 F304 / F316 / F316L)
Manufacturing Process Close Die Forged / Open Die Forged
Design Standard ASME B16.34 / API 608 / API 6D / BS 5351
End Connection Standard ASME B1.20.1 (NPT Thread) / ASME B16.25 (BW) / ASME B16.11 (SW)
Face to Face Standard Manufacturer Standard / ASME B16.10
Test & Inspection Std. API 598 / ISO 5208 / BS 6364 (Cryogenic Test)

1/2″-800LB Cryogenic Floating Ball Valve

 

TECHNICAL DATA SHEET

Product Name: 1/2-inch 800LB Stainless Steel Cryogenic Floating Ball Valve
Model/Specification: 1/2″-800LB-CRYO
نوع شیر: Floating Ball Valve (Cryogenic Service)
Connection Type: Threaded (NPT) / Butt Weld (BW) / Socket Weld (SW) User specified

  1. Basic Design Parameters

پارامتر

Standard/Specification

اندازه

1/2 inch (DN 15)

Pressure Class

Class 800 LB (PN 130)

جنس بدنه

Stainless Steel (ASTM A182 F304 / F316 / F316L)

Manufacturing Process

Close Die Forged / Open Die Forged

Design Standard

ASME B16.34 / API 608 / API 6D / BS 5351

End Connection Standard

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

Face to Face Standard

Manufacturer Standard / ASME B16.10

Test & Inspection Std.

API 598 / ISO 5208 / BS 6364 (Cryogenic Test)

Fire-Safe Design

API 607 / ISO 10497 (Optional)

Fugitive Emission

ISO 15848-1 (Optional)

  1. Technical Specifications

پارامتر

Details

نوع شیر

Floating Ball, 2-Piece or 3-Piece Construction

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, and other cryogenic fluids

نوع سوراخ

Full Bore / Reduced Bore (Optional)

عملیات

Lever Handle / Gearbox / Pneumatic Actuator / Electric Actuator

دستگاه ضد الکتریسیته ساکن

API 608 Requirement (Standard)

Blow-Out Proof Stem

استاندارد

Cavity Pressure Relief

Self-relieving seat design (upstream/downstream)

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

Part Name

مواد

Standard/Grade

بدن

Forged Stainless Steel

ASTM A182 F304 / F316 / F316L

End Cap / Bonnet

Forged Stainless Steel

ASTM A182 F304 / F316 / F316L

توپ

Stainless Steel (Hardened)

ASTM A182 F304/F316 + STL (optional)

ساقه

Stainless Steel

ASTM A182 F304 / F316 (Blow-out proof)

Seat Seal (Primary)

PCTFE (KEL-F®) / PTFE / RPTFE

PCTFE for cryogenic service

Stem Seal / Packing

PCTFE / Graphite

Low temperature stable materials

Gasket

Stainless Steel + Graphite

Spiral Wound / Reinforced

دستگاه ضد الکتریسیته ساکن

Stainless Steel Ball + Spring

316 SS

Body Bolts/Nuts

Stainless Steel

ASTM A193 B8 / A194 8

Handle / Lever

Stainless Steel

ASTM A182 F304 / Zinc Plated CS

  1. Main Dimensions & Connection Details

*Note: Dimensions are for 1/2″ Threaded End (NPT) connections. BW/SW dimensions may vary by manufacturer.*

4.1 End-to-End Dimensions (Threaded)

اندازه

Class

اتصال

L (mm)

L (in)

H (Open) mm

H (Open) in

W (Handle) mm

W (Handle) in

Weight (kg)

Weight (lbs)

1/2″

800LB

1/2″ NPT

68

2.68

95

3.74

125

4.92

0.5

1.1

4.2 Extended Bonnet (Cryogenic Feature)

  • Extension Length: Designed to keep packing box above frost line (typically 150mm – 250mm for 1/2″ valve, depending on service temperature [-196°C]).
  • Drip Plate: Included to prevent ice formation on the body/bonnet joint.

4.3 Weld End Preparation (if BW – per ASME B16.25)

  • Bevel Angle: 37.5°
  • Root Face: 1.6 mm (1/16″) nominal
  • Counterbore: To match pipe schedule (e.g., Sch. 80, Sch. 160) as specified.
  1. Pressure-Temperature Rating (Class 800)

*Material Group: Stainless Steel (A182 F304/F316) – Values derived from ASME B16.34 and PTFE seat limits.*

Temperature (°C)

Working Pressure (bar)

Working Pressure (psi)

یادداشت‌ها

-196 to -46

138.0

2000

Cryogenic Range (PCTFE seats)

-29 to 38

138.0

2000

Standard Range (PTFE seats)

100

124.0

1800

 

150

111.0

1610

 

200

97.0

1405

Max for PTFE

230*

85.0

1230

Short-term only

*For cryogenic service (below -46°C), PCTFE seats maintain excellent sealing properties down to -240°C. *

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

پارامتر

Value

Flow Coefficient Kv (m³/h)

5.5

Flow Coefficient Cv (US gal/min)

6.4

Port Diameter (Full Bore)

~12 mm (0.47 in) (typical for 1/2″ Class 800)

  1. Test Pressure (API 598 / BS 6364)

Test Type

Medium

Pressure (bar)

Pressure (psi)

Note

Shell Test (Hydrostatic)

Water

207

3000

1.5 x 38°C Rating

High-Pressure Seat Test

Water

152

2200

1.1 x 38°C Rating

Low-Pressure Seat Test

Air/N2

5.5 – 7.0

80 – 100

Per API 598

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 and other liquefied gases.
    • Extended Bonnet: Protects the stem seals and packing from the extreme cold, ensuring operability and preventing ice formation.
    • PCTFE (KEL-F®) Seats: Provides reliable sealing at cryogenic temperatures with excellent dimensional stability.
    • Cavity Pressure Relief: Self-relieving seat design prevents dangerous over-pressure in the ball cavity due to vaporization of trapped cryogenic liquid.
    • 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 certification ensures sealing integrity in case of fire.
    • Forged Body: Provides superior strength and reliability at high pressures and low temperatures.
  • 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.

Disclaimer: The above data is prepared based on common standards for cryogenic floating ball valves. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement shall prevail.

ضمانت:

شرکت SAVVY VALVES متعهد به ارائه کیفیت استثنایی محصول و خدمات پس از فروش بدون نگرانی است. شیرهای ما حداقل ۱۲ ماه عمر مفید دارند که در این مدت، تمام قطعات یدکی لازم و دستورالعمل‌های دقیق تعمیر و نگهداری را به صورت رایگان ارائه خواهیم داد. در طول دوره گارانتی، در صورت بروز هرگونه آسیب غیر انسانی، قطعات را بدون هیچ هزینه‌ای تعویض کرده و پشتیبانی فنی حرفه‌ای ارائه می‌دهیم. پس از انقضای گارانتی، مشتریان فقط باید هزینه قطعات یدکی را بپردازند، در حالی که همچنان از خدمات تعمیر و نگهداری با تخفیف بهره‌مند می‌شوند. هدف ما کمک به مشتریان برای کاهش هزینه‌های عملیاتی و افزایش بهره‌وری تولید از طریق کیفیت قابل اعتماد و پشتیبانی جامع پس از فروش است. چه برای سوالات فنی و چه برای نیازهای تعمیر و نگهداری، تیم متخصص ما به سرعت پاسخ خواهد داد تا اطمینان حاصل شود که سیستم شیر شما در هر زمان عملکرد بهینه خود را حفظ می‌کند.

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