Industry Full Bore Stainless Steel Extension Stem Cryogenic Ball Valve

We specialize in Triple Eccentric Flange Butterfly Valve, NPT Ball Valve, Y Strainers production and have many years of experience in sales and service of related products so that we can serve customers well and respond quickly to customer needs. Our company takes the customer as the center, pursues the product and the service excellence and satisfies the customer's actual demand and the potential demand. Our items have been obtained more and more recognition from foreign clients, and established long term and cooperative relationship with them. We take gratitude as the quality concept of the enterprise, always thank everyone for providing opportunities to our customers.

Product Details

NSV Cryogenic floating ball valve is used for low temperature working condition , especially for some hazard media, such as liquidized natural gas.

These cryogenic floating ball valve is the optimum solution for cryogenic flow isolation at temp. as low as -196 degC,included LNG liquefaction,transportation and regasification,that's fire-safe and also meet ISO15848 standard.

Applicable Standard
Design Standard: API 6D, ASME B16.34, API 608
Face to Face: ASME B16.10
End Flange: ASME B16.5
Butt welding Ends: ASME B16.25
Inspection and Test: ISO15848-1

Products Range
Size: 1/2" ~8" (DN15 ~ DN200)
Rating: 150lb ~ 600LB

Body Material: SS304(L),SS316(L)
Seat Material: KEL-F(PCTFE)
Operation : Lever, Gear, Electric, Pneumatic, Hydraulic

1. Advantage,Design and manufacturing features

For cryogenic ball valve, if the valve is at closed position, the cryogenic liquid stayed in the cavity of the valve will be gasified and expanded when the temperature gets rising. This will cause the unusual high pressure in the cavity, and maybe break the valve. To avoid such dangerous accident, our ball valve has self-relief function for the cavity pressure. When the pressure in the cavity unusually rises, the medium in the cavity will push the seat to relive the pressure by it's own force.Such design will endure the safety of the valve.

The ball valve can be cryogenic tested if it is specified in the contract. The operating torque, sealing performance and other data can be obtained and checked by the test.

The spare parts of the valve shall be cryogenically treated to ensure their dimensional stability under the cryogenic condition.

2.Cryogenic Test

NSV in-house cryogenic test laboratory use the latest computer aided technology and is capable of certifying valves up to size 24" at temperature range from -46~-196deg C per test standard of BS6364 and Shell MESC SPEC 77/306.

3. KEL-F Polychlorotrifluoroethylene(PCTFE)

PCTFE is a fluorocarbon based polymer.It offers a unique combination of physical and mechanical properties non-flammability,chemical resistance,and near zero moisture absorption.It has a temperature range -400゜F to 400゜F(-240゜C to 240゜C) which is suitable for cryogenic applications.

KEL-F® is a 3-M's trademark

FAQ

1. Q:Do you have customized valve?

A:Yes,we can supply customized valves.

2. Q:What's the packing for shipping?

A:Its carton for small valves(sample) and plywood case(don't to fumigate).

3. Q: What's your payment terms?

A: As our company's policy, we normally have bellow 3 payment terms,it also can negotiation both parties before confirm order.
1) 100% T/T or West Union in advance that order value within $2,000.00USD.

2)30% T/T advance+70% balance after the shipment for the order value above $2,000.00USD.

3)L/C at sight for the order value above $50,000.00USD.

Our company's strong R&D and design capabilities can fully meet the needs of our customers and provide reliable and high-quality Industry Full Bore Stainless Steel Extension Stem Cryogenic Ball Valve. We welcome you to visit our factory and look forward to establishing friendly business relationships with customers at home and abroad in the near future. We guarantee to treat all our customers equally, and provide our customers with same working quality and service standard.