Technical Requirement:
1. Design and Manufacture: BS5153;
2. Face to Face: B5153;
3. Flange End: BS4504;
4 Test: BS5146;
Product Details
Main parts and materials
| Parts Name | Materials |
| Body、Bonnet | Cast iron/ductile iron |
| Disc | Cast iron/ductile iron |
| Seat Ring | Brass |
