Cryogenic Butterfly Valve

Cryogenic Butterfly Valve

Product Description

cryogenic butterfly valve 4 inch 8 inch grooved end butterfly valve with lever handle hand wheel

1. Small in size, light in weight, easy installation and maintenance.

2. Simple and compact construction, quick 90 degree on-off operation.

3. Minimized operating torque, energy saving.

4. Flow curve tending to straight line, excellent regulation performance.

5. Long service life, standing the test of tens thousands opening/closing operations.

6. Wide selection of materials, applicable to various medium.

Technical parameters

Product type：Switch valve class

Product name: Low-temperature bi-directional pressure all-metal hard seal butterfly valve

Nominal diameter: NPS 2 "~ 48" (DN50 ~ DN1200)

Operating temperature: -196℃~340℃

Nominal pressure：CLASS 150～900 (PN20～PN150)

Main material: Material: A351 CF8, CF8M, CF3, CF3M; A352 LCB, LCC, etc.

Design standard: API 609, ASME B16.34, BS 6364

Structure length: ASME B16.10, GB/T 12221, API 609

Connection end ASME B16.5, ASME B16.47, ASME B16.25, GB/T 9113

Test standard API 598, ISO 5208, GB/T 26480, GB/T 13927, BS 6364

Operation mode: handle, worm wheel, electric drive, pneumatic drive

Use field: LNG, LPG, LEG, air separation and other low-temperature industries.

Structural features

According to different temperature levels, the dimensions of the valve stem and bonnet extension are different.

For ≤ -101℃of the main parts to do deep cooling treatment, to prevent the valve deformation at low temperatures.

Valve seat, valve sealing surface overlay hard alloy, improve the valve's ability to resist scouring, extend the service life of the valve.

Compact structure, easy to disassemble, convenient and maintenance, light weight.

With a certain degree of adjustment performance, can be used as a regulating valve.

Good sealing performance, can reach 0 leakage.

Seat, butterfly plate sealing surface welded hard alloy, improve the valve's scouring resistance, extend the service life of the valve.

Anti-blow-out design to ensure the safety of use.

Drip plate design, effectively prevent condensate from flowing into the insulation layer.

The valve stem seal adopts low leakage packing to ensure that it meets the requirements of low leakage.

Performance:  

Standard:  

Material List: