Standard Features
The Gauge Protectors are as a standard available for sour gas service in accordance with NACE MR0175/MR0103 and ISO 15156 except the Brass Type. Pressure Test: A shell test and a seat test are performed at 1.5 times the maximum working pressure acc. to EN 12266-1 - P10, P11 and P12. The closing pressure is normally adjusted to the average value of the relevant adjusting range – For example adjusting range 2-6 bar = 4 bar closing pressure. |
Optional Features
DVGW approved Gauge Protectors:
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Components | Brass | Stainless Steel | Duplex | Alloy 400 | Alloy C-276 | Alloy 625 |
Material / Material No. | ||||||
Body | Brass | 1.4571 | 316 * | Duplex | Alloy 400 | Alloy C-276 | Alloy 625 |
Bonnet | 316 * | Duplex | Alloy 400 | Alloy C-276 | Alloy 625 | |
Piston | 1.4404 * | 1.4404 * | 316 * | Duplex | Alloy 400 | Alloy C-276 | Alloy 625 |
Piston Seals | FKM (FPM by ISO) | |||||
Screw Plug | 1.4404 * | 1.4404 * | Duplex | Alloy 400 | Alloy C-276 | Alloy 625 |
Adjusting Screw | 1.4404 * | |||||
Spring | Stainless Steel | |||||
Adjusting Nut | Unalloyed Steel | Stainless Steel |
* 316 / 316L / 1.4401 / 1.4404