Adoption standard:
Design standard: BS EN593-1998
Flange connection dimension: BSEN1092-2002
Structure length: BS EN558-1
Pressure test: BS6755-I-1986
Nominal diameter: 40 to 1,000mm
Nominal pressure: 1.0 and 1.6mm
Test pressure (shell test): 1.5 and 2.4MPa
Test pressure (seal test): 1.1 and 1.76MPa
Appropriate medium: air, water, sewage, steam, coal gas and oil
Drive modality: handle, worm gear box, pneumatic and electric drive
Body material: ductile cast iron, cast, alloy and stainless steel
Disc material: gray cast iron, ductile cast steel, cast steel, stainless steel and hoc material
Seal ring material: manifold rubber, such as EPDM, PTFE, NBR, Viton and CR
Stem material: 2Cr13, stainless steel
Packing material: O-ring, flexible graphite
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