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D-BGV PN 20
SPECIFICATION
BS 5154, EN 12288
SCREWED-IN BONNET SOLID WEDGE DISC
NON-RISING STEM INTEGRAL SEAT ASBESTOS FREE
THREADED TO BS 21 (ISO 7) / ASME B1.20.1 OR NPT
| Working Pressure | 20 bar C.W.P. 9 bar at 180ºC |
| Testing Pressure | Shell: 30 bar Hydrostatic Seat: 22 bar Hydrostatic or 6 bar Air |
| Working Temperature | -10ºC ~ 180ºC |
| Suitable Media | Water & Oil |
| Part | Material | ASTM |
|---|---|---|
| Body | DZR Brass | 12165 CW602N |
| Bonnet | DZR Brass | 12165 CW602N |
| Disc | DZR Brass | 12165 CW602N |
| Stem | DZR Brass | 12165 CW602N |
| Packing | PTFE | |
| Packing Nut | Brass | 12165 CW614N |
| Gland | Brass | 12165 CW614N |
| Handwheel | Aluminium |
| Size | L | H | D | ||||
|---|---|---|---|---|---|---|---|
| mm | inch | mm | inch | mm | inch | mm | inch |
| 15 | 1/2 | 48.0 | 1.9 | 70.0 | 2.8 | 50.0 | 2.0 |
| 20 | 3/4 | 50.5 | 2.0 | 81.0 | 3.2 | 60.0 | 2.4 |
| 25 | 1 | 58.0 | 2.3 | 98.5 | 3.9 | 70.0 | 2.8 |
| 32 | 1 1/4 | 63.5 | 2.5 | 118.5 | 4.7 | 80.0 | 3.2 |
| 40 | 1 1/2 | 67.5 | 2.7 | 129.5 | 5.1 | 90.0 | 3.5 |
| 50 | 2 | 73.0 | 2.9 | 164.5 | 6.5 | 100.0 | 4.0 |
Note:
1. Design and specifications are subject to change without prior notice.
