Cryogenic Valves

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With our legacy field-proven ball valve and control packages product-line, we have been successfully performing in the industries most demanding and evolving cryogenic applications over the last three decades. Our products offer added values on safety, fugitive emission prevention, reliability, minimal & ease maintenance, space & weight savings, and compatibility to regulations and special needs of land-base, marine and space industries.

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From the most recent Small-Scale LNG systems to the traditional liquefied industrial gases supply, air separation plants, LNG storage, distribution and transportation, aerospace, petrochemical, and medical applications, Habonim cryogenic products offer added values on safety, fugitive emission prevention, reliability, minimal & ease maintenance, space & weight savings, and compatibility to regulations and special needs of end-users, governing bodies, OEM’s, designers, and system builders.

General

Habonim’s cryogenic valves are subject to the general Habonim valves design, materials, practices, methodologies, and certifications – for more information, see the Valves General chapter in Habonim catalog.

All Habonim cryogenic valves are equipped with the Total HermetiX Integrity Package for superior sealing, safety, and environmental care.

Special mechanical design and construction

• Solid one-piece high torque durable stem.
• Tight stem-to-ball directional engagement ensures relief hole alignment.
• Strict materials and manufacturing tolerances control.

No-Trap Cavity

Each cryogenic valve is equipped with a mechanism that prevents pressure buildup in the valve cavity, eliminating the risk that liquefied-gas evaporation will over – pressure the valve body by releasing over-pressured media from the cavity area back to the line.

Habonim uses a variety of such mechanisms:

• Relief hole on the upstream sphere of the ball to prevent pressure buildup in the cavity
• Spring loaded seat construction with piston effect for cavity pressure relief
• Single seat active seal construction – no closed cavity

Minimal Thermal Expansion

Using one-size-up and double the amount of body bolts reduces linear thermal expansion
and dramatically decreases the likelihood of leakage to the atmosphere.

Efficient Heat Transfer

The Habonim standard bonnet length design complies with BS6364 for non-cold box applications. The long neck bonnet insulates the stem seal from the low temperatures of cryogenic fluids, thus enabling safe and long-lasting seal service. A small gap between the bonnet ID and the stem OD, ensures a thick layer between the media and the stem seal.

Inclination Limitation

The Habonim bonnet design comes in two optional versions. Both are designed to prevent cryogenic liquids from reaching the stem seal. Habonim recommends installation in the vertical position but allows installation at an angle.
The 12″ bonnet can be installed up to 45° from the vertical axis to maintain fully BS6364 compliant.
The 6″ bonnet can be installed up to 15° from the vertical axis (not BS6364 compliant).
Double isolation / double block and bleed designs available upon request

Cleaning, Assembling and Packing

Cryogenic Service

A meticulous cleaning and assembly procedure eliminate the ignition hazards that can be caused by the presence of hydrocarbon oil, grease, and metal chips. Habonim uses an environment friendly, alkaline-based degreasing process with controlled parameters. Valves are assembled in a controlled area by personnel who are specially equipped and trained to perform this task. The assembling area, work surfaces, equipment and tools are specially maintained to ensure cleanliness requirements are met.
• Valves are cleaned and degreased for oxygen service
• Valves ends are capped, valves are plastic bagged
• A sticker on the plastic bag indicating “cryogenic use”

Quality

Reference standards

• Design, testing & inspection according to BS 6364:1984 (amendment 3)
• Testing EN 14432:2014
• Testing EN 1626:2008 (per request)
• NDT per ASME B16.34 – optional

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Cryogenic Valve Catalog EN

Valves Design: Top Entry Trunnion Mounted Ball Floating Ball

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