19ч21бр Dual plate wafer check valve
Design and Manufacture:DIN3352
Face to face:DIN3202-K3/API 594
Flanged end: DIN 2501/BS 4504/ISO 7005-2 PN10/PN16,BS 10/AS 2129 Table D/E,JIS 2220 5K/10K,ASME B16.1 Class 125 & B16.42 Class 150
Inspection:DIN3230/ISO5208/JB-T9092
描述
19ч21бр Dual plate wafer type check valve
Main parts and materials
| Parts name | Material | ||||||||||||||||||||||
| Body,Disc | Cast iron/Ductile iron/stainless steel | ||||||||||||||||||||||
| Stem | Cast steel/stainless steel | ||||||||||||||||||||||
| Seal | EPDM/NBR/VITON/FTM | ||||||||||||||||||||||
