|
|
|||
|
||||
|
||||
|
||||
|
||||
|
||||
 |
||||
Brass Back Water Check Valve
Features
- Blow-Out Proof Stem
- Double “O” Rings
- Virgin PTFE Packing
- Special For Radiator
Working Pressures
| Working Pressures Non-shock(Mpa) | Test Pressure(Mpa) | ||
| Saturated Steam | Cold Water, Oil, Gas | Shell(Air) | Seat (Air) |
| 1.6 | 1.6 | 2.4 | 0.6 |
Materials & Specifications
Item |
Part Name |
Materials Specification |
1 |
Handwheel |
Plastic ASTM A36 |
2 |
Bonnet |
Forged Brass
|
3 |
Double “O” Ring |
NBR ASTM B283-C3770 |
4 |
Packing |
PTFE ASTM B283-C3770 |
5 |
Stem |
Forged Brass ASTM A36 |
6 |
“O” Ring |
PTFE ASTM A36 |
7 |
Body |
Forged Brass ASTM B283-C3770 |
8 |
Disc |
Forged Brass
ASTM B283-C3770 |
9 |
“V” Ring |
NBR
|
10 |
Screw Nut |
Forged Brass
|
11 |
Union End |
Forged Brass
|
Dimensions & Weights(mms-gs.)
Size |
¼ |
3/8 |
½ |
¾ |
1 |
1¼ |
1½ |
2 |
2½ |
3 |
4 |
L |
…… |
… |
74 |
85 |
… |
… |
… |
… |
… |
… |
… |
H |
… |
… |
42 |
47.5 |
… |
… |
… |
… |
… |
… |
… |
D |
… |
… |
11 |
16 |
… |
… |
… |
… |
… |
… |
… |
Wt. |
… |
… |
210 |
325 |
… |
… |
… |
… |
… |
… |
… |