Cryogenic Butterfly Valve

CRYOGENIC BUTTERFLY VALVE: Engineered for Extreme Cold & Uncompromising Reliability

Conquer the challenges of ultra-low temperature applications with our precision-engineered Cryogenic Butterfly Valve. Designed specifically for the demanding environments of LNG (Liquefied Natural Gas), liquid nitrogen, oxygen, argon, CO2, and other cryogenic fluids, this valve delivers exceptional performance, safety, and longevity where standard valves fail.

Technical parameters of cryogenic butterfly valve

Tips: Cryogenic valve manufacturing and testing

Cryogenic valves require strict quality control of parts processing.

1. Special cryogenic treatment:  the rough-machined parts are placed in the cooling medium for several hours (2-6 hours) to release stress, ensure the low-temperature performance of the material, and ensure the fine processing size to prevent the valve from leaking due to deformation caused by temperature changes when working under low-temperature conditions.

2. Impact test: After the valve parts have completed the cryogenic treatment, they need to undergo a low-temperature impact test, and they can only be assembled after the test is qualified.

3. Valve Parts Cleaning: The assembly of the valve is also different from that of ordinary valves. The parts of the valve need to be strictly cleaned to remove any oil stains to ensure performance.

4. Nitrogen test: After the valve is assembled, a low-temperature test is required. The medium for low-temperature testing is different from that of conventional valves, and nitrogen needs to be used for testing.

Why Choose Our Cryogenic Butterfly Valve

Unmatched Cold Performance: Built to operate flawlessly at temperatures plunging down to -196°C (-320°F) and beyond. Every component, from body to disc to seat, is meticulously selected and treated to withstand extreme thermal contraction without compromising integrity.

Advanced Extended Bonnet Design: 

Our critical long stem extension (extended bonnet) acts as a thermal barrier. This ingenious feature:

• Prevents Seat Freezing: Keeps critical sealing components away from the intense cold path.

• Protects Stem Packing: Ensures reliable stem sealing by maintaining packing at ambient temperatures, preventing brittleness and leakage.

• Safeguards Actuators: Allows standard actuators to operate effectively without exposure to cryogenic temperatures.

• Leak-Tight Security: Achieves bubble-tight shut-off (BS 6364 compliant) in both flow directions. Our specialized low-temperature seat materials provide exceptional sealing integrity, minimizing fugitive emissions and ensuring process safety in critical cryogenic systems.

Superior Materials & Construction:

• Body & Disc: High-integrity materials like Stainless Steel (CF8M/SS316) or Duplex Stainless Steel, often cryogenically treated to enhance toughness at low temperatures.

• Seat: Engineered polymers (e.g., RPTFE, PCTFE, PEEK) or resilient metal seats, specifically chosen for their outstanding resilience and sealing performance in extreme cold.

• Stem: Robust design, often using materials like Stainless Steel 316 or 17-4PH, precisely machined for smooth, reliable operation.

• BS 6364 Compliance: Manufactured and tested in accordance with the stringent BS 6364 standard for cryogenic valves, guaranteeing performance, safety, and reliability under deep cryogenic conditions.

• Robust & Efficient Operation: Features a low operating torque design, ensuring smooth actuation even at cryogenic temperatures. Compatible with manual levers, gearboxes, pneumatic actuators, or electric actuators for seamless integration into your control system.

Versatile Applications:

The ideal solution for:

→ LNG Production, Storage & Transfer: Terminals, tanker loading/unloading, vaporizers.

→ Industrial Gas Processing: Nitrogen, oxygen, argon plants.

→ Cryogenic Storage Tanks & Vessels.

→ Aerospace & Defense Testing.

→ Chemical Processing (Cryogenic stages).

→ Medical & Pharmaceutical (Liquid gases).

Engineered for Safety & Long-Term Value:

Zero Fugitive Emissions: Designed to meet stringent environmental and safety regulations.

Minimal Maintenance: Robust construction and high-quality materials ensure a long service life, reducing downtime and total cost of ownership.

Proven Reliability: Built to perform in the world’s most critical cryogenic infrastructure.

Find Your Cryogenic Solution:

Whether you’re managing LNG flow, handling liquid gases, or operating in any ultra-low temperature environment, our Cryogenic Butterfly Valve provides the dependable, leak-tight performance you demand. Experience the difference precision engineering makes at cryogenic extremes.

Optimize your cryogenic process safety and efficiency. Request a quote or download the detailed datasheet for our BS 6364 compliant Cryogenic Butterfly Valves today!

Newsway Valves Materials

The China Valve Manufacturer from China, its valves body and trim material can be offered in Forged type and Casting type. Next to Stainless Steel and Carbon Steel material, we also manufacture valves in special materials such as titanium, nickel alloys, HASTELLOY®*, INCOLOY®, MONEL®, Alloy 20, super-duplex, corrosion resistant alloys and urea grade materials.

Available Valve Materials