Bellows valve 
 BELLOW GATE VALVES 

 MED bellows bellows valve stem and packing with double seal structure to ensure no leakage at the valve stem seal, especially for flammable, explosive, toxic and expensive media pipeline. Bellows of stainless steel or Inconel material, bellows seal design is reasonable, fatigue, long service life. Bellows valve is widely used in PN PN1.6 ~ 16MPa, operating temperature -29 ~ 350 ℃ in the petroleum, chemical, pharmaceutical, fertilizer, power industry, and other conditions of the pipeline, pipe cut off or connected to the media . 

 MED bellows valve main parameters: 
 Valve Type: WZ41W/H/Y, WZ641, WZ941 
 Body Material: Cast steel WCB, forged steel A105, stainless steel (304,316, etc.), GS-C25, 1.1156,1.4301,1.4401, CF8, CF8M, CF3, CF3M 
 Size range: DN15-DN400; 1 / 2 "-16" 
 Pressure Range: 1.6Mpa, 2.5Mpa, 4.0Mpa, 6.4Mpa, 10.0Mpa, 150lb, 300lb, 600lb 
 Optional drive mode: manual, pneumatic, electric; 


 GB Bellows valve design standards: 
 In accordance with the design and manufacturing standards: GB12234; 
 Length of the structure in accordance with: GB12221; 
 Connector size by: JB/T79, GB9113, HG20592 
 Inspection and testing by: JB / T 9092, GB/T13927 

 American Standard bellows valve design standards: 
 Design and manufacturing standards in accordance with: ASME B16.34, MSS-SP-117, BS1873; 
 Length of the structure in accordance with: ASME B16.10; 
 Connector size in accordance with: ASME B16.5, ASME B16.25 
 Inspection and testing in accordance with: API598 

 DIN bellows valve design standards: 
 In accordance with the design and manufacturing standards: DIN3352; 
 Length of the structure in accordance with: DIN3202; 
 Connector size by: DIN2543-2546 or optional 
 Inspection and testing in accordance with: DIN3230 

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