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Cryogenic butterfly valve refers to the butterfly valve that can be used under cryogenic temperature conditions. Usually, the butterfly valve whose working temperature is lower than -40℃ is called the cryogenic temperature butterfly valve, and the butterfly valve that reaches -101℃ and below is called the ultra-low temperature butterfly valve. Especially this kind of butterfly valve with triple offset structure, because of its extremely stable design structure, reliable material selection and excellent performance, it is mostly selected and used in ultra-low temperature environment. The Triple Offset Butterfly Valve’s design also meets the most stringent international standards and can also meet the leakage rate required by users.
Specifications
1. Valve Size : 2” ~ 42”
2. Applicable Rating : ASME 150# ~ 900#
3. Temperature : Down to -196 ℃
4. Code & Standard : API, BS, ASME, ASTM
Designed by BS6364, ASME B16.34, and ASME VIII
5. Shell & Seat Leak Test : ISO15848, API622, API598, API6D,BS6364
6. Constructions：
End Connection : Butt-Welded or Flanged Type
Long Extended Bonnet
Fire Safety Construction
Manual or Motor Operated (Pneumatic, Electric, or Hydraulic)
Design Feature
1.Reinforced stainless steel shaft bearings for highly cycles and smooth operation at very cryogenic temperature.
2.High reliability: Safety integrity level requirements according to IEC 61508.
3.Triple offset disc rotation: provides bubble tight sealing without rubbing or galling.
4.Internal blow-out protection for prevents the shaft from blowing out under pressure.
5.Inherent fire safe function: stainless steel construction and metal seal provide inherent fire safe function.
6.The operating torque is small, the valve seat is easy to replace, and there is no need to set a limit structure.
Technical PropertyMATERIALS FOR MAIN PARTS:
PARTS NAME
MATERIAL
BODY
– ASTM A351-CF8(M)/CF3(M)
BONNET
– ASTM A351-CF8(M)/CF3(M)
STEM
ASTM A182-316 / Gr.660
DISK
ASTM A351-CF8/A182 F316
EXTENDED BONNET
ASTM A351-CF3M)/ 316(L)
GASKET
SPIRAL WOUND GRAPHITE
GLAND PACKING
GRAPHITE
Quality Assurance
IMPROVEMENTS:
1. Set up a trained and standardized Quality Control technician Team. 2. With our computer managements system to analyze the data, find out the weak link of management, improve the quality and efficiency, and reduce the waste in the process. 3. Through the computer system to make information transparent to customers, customers can master the order status and product related information in real time. 4. Advance Machines: take advanced technology and reliable equipment to ensure machining accuracy and long-term stable production capability.
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Our Contacts
Office
Anfeng Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province
