API/ANSI/DIN/JIS Cast Iron Lug Butterfly Valve with Soft Seat

API/ANSI/DIN/JIS Cast Iron Lug Butterfly Valve with Soft Seat

Low Temperature Butterfly Valve mainly used for ethylene, liquefied natural gas units, natural gas LPG LNG storage tanks...The valves control the temperature, prevent the explosion, leakage and other hidden dangers.

Product Details

We will adhere to the business philosophy of 'creating high-quality products and providing professional services' and wholeheartedly provide all kinds of Lug Style Butterfly Valve, Class 150 Triple Offset Butterfly Valve, Metal-seated Butterfly Valve to customers all over the world. We always take innovation and technology as the development direction, return to the new and old customers, and maximize the interests of customers. We insist on first analyzing the needs of customers, and then carrying out targeted designs to provide customers with high-quality products. We are confident that we are going to have a bright prospect and to be distributed all over the world in the years to come. Till now, the merchandise list has been updated on a regular basis and attracted customers from around the globe.

【Product Introduction】:

Low Temperature Butterfly Valve is valve suitable for service that temperature -46 Degree C ~ -196 Degree C,Is one of the main products of our ZFVALVES.For using in cryogenic situation, the extended stem/bonnet design shall be applied. Extended stem/bonnet butterfly valve can be provided by ZFV according to customer requirement. 

ZFVALVE after years of manufacturing, has accumulated rich experience, from design, technology to manufacturing increasingly mature, and has developed a series of low-temperature valve products.Please see below details;


Basic Information】:

* Nominal Diameter: 16 inch

* Nominal Pressure: 150LB

* End Type: Butt Welding

* Operation: Gearbox with extended stem

* F/F length: 310mm

* Body: SS316

* Disc: SS316

* Stem: A182 F316

* Seal: Stainless steel layer laminated with graphite

* Extended Stem : Yes

* Suitable Temperature : -46°C ~ -196°C

* Suitable service : Low temperature service

* Design standard: API 609

* Face to face dimension: API 609

* Extended stem standard: BS 6364

* Origin : Wenzhou / CHINA


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Application Of Low Temperature Butterfly Valve】:

1.Main Meterial: A352-LCB(-46℃)、LC3(-101℃)、A351-CF8M(304)(-196℃)

2.Pressure range: 150、300、600、900LB

3.Connection tyoe: Flange、Wafer、LUG type、Butt Welding...

4.Seat using welded structure, the sealing surface surfacing welds the cobalt base hard alloy, guarantees the valve sealing performance.

5.Used extended stem or extended-bonnet design to protecting the stuffing box of the cryogenic valve.

6.After special low temperature treatment, the rough parts are placed in the cooling medium for several hours (2-6 hours) to release the stress and ensure the low temperature performance of the material

7.Low temperature valves manufactured by ZFVALVES are subjected to cryogenic treatment and impact test according to the corresponding material specifications.



In the process of seeking cooperation, we are not blindly pursuing economic benefits but strive to solve the actual needs of customers with intrinsic specific value of the API/ANSI/DIN/JIS Cast Iron Lug Butterfly Valve with Soft Seat itself. Over the years, we have implemented an active business culture and established a comprehensive scientific system of business culture. We continue to innovate and improve to make our business a fast-growing part of our line, and help our employee achieve advantage and enhance self-value.

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