Product Description
BS5163 NRS（non-rising stem）Flat Face Flange Resilient seat gate valve / water sluice valve
Features
² The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber.
² Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem.
² Stainless steel stem with rolled threads for high strength.
² The valve can replace stem seals under pressure.
² Full bore.
² Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance.
Standard
Design standard | BS5163, EN1171 |
Flange drilling standard | EN1092-2 PN10/PN16/PN25 |
Face to face standard | EN558-1 Series 3 |
Hydraulic test standard | EN1074-1 and 2 /EN12266 |
Seat:1.1*PN(in bar), Body:1.5*PN(in bar) |
Technical Parameters
Nominal diameter(mm) | 40～1200 | 40～1200 | |
Nominal pressure(Mpa) | 1.0 | 1.6 | |
Testing pressure | Shell(Mpa) | 1.5 | 2.4 |
Seal(Mpa) | 1.1 | 1.76 | |
Suitable temperature | -40°C～150°C | ||
Suitable medium | Drinking water、sewage、seawater、irrigation,or other neutral liquid. | ||
Main Raw Material
1 | Body | Ductile Iron | 9 | Gland bolt | Steel gr.8.8 |
2 | Wedge | Ductile Iron+EPDM | 10 | Handwheel | Ductile Iron |
3 | Wedge Nut | Brass | 11 | Gland | Ductile Iron |
4 | Stem | Stainless steel | 12 | O-ring | EPDM rubber |
5 | Bonnet gasket | EPDM rubber | 13 | Nut | Stainless steel |
6 | Bonnet | Ductile iron | 14 | Washer | Steel |
7 | Thrust collar | Brass | 15 | Bonnet bolt | Steel gr.8.8 |
8 | O-ring | EPDM rubber |
Components may be substituted with equivalent or higher class materials.
