PRODUCTS
3VSS3
Stainless steel AISI 316L precision relief valve, suitable for compressed air and gas.
Product
Relief valve for pressure up to 1,2 bar (17,5psi).
Inlet and outlet connections by flanges screwed to the body:
G 3/4-F;
G 1-F;
G 1 1/4-F;
G 1 1/2-F
3/4″NPT-F;
1”NPT-F;
1 1/4″NPT-F.
1 1/2″NPT-F
Flanged connections EN or ASME available on request.
The relief valve opens when the inlet pressure increases above the set point initially regulated by the adjusting screw and it closes when the pressure goes down under the set point. Set point pressure is controlled by a rubber diaphragm.
Available the ATEX version. Brand CE ExII2GDcIICX.
For use in potentially explosive atmospheres zones:
1, 21, 2, 22 (not in mines and zone 0).
The product complies with the directive 97/23/CE PED.
CHARACTERISTICS
Technical data
| Compatibility | Compressed air | Tecnhical gases and their mixtures | Liquids | Oils |
|---|---|
| IN/OUT Connection | G 3/4”-F | G 1”-F | 3/4”NPT-F | 1”NPT-F | UNI EN 1092-1 | ASME B16.5 |
| Working Temperature | -4+176 °F standard | other temperature ranges on request |
| Maximum Allowable Pressure (PS) | 6 bar |
| CV (CEI EN 60534-2) | 3,6 US gal/min |
| Relief Pressure Ranges | 0 ÷ 300 | 0 ÷ 700 | 0 ÷ 1200 mbar |
| Weight | ~29,7 lb |
| Plug Leakage Class | “A” class (UNI EN 12266-1) |
| Pressure Gauge Connection | 1/4”-F | 1/8”-F (GAS / NPT) (only on request) |
| Certifications | PED 2014/68/UE | ATEX 2014/34/UE | EAC TR CU 010 |
| Internals and Body Material | Stainless steel AISI 316L |
| Seals Material | EPDM | FPM | FVMQ | FFKM |
| Spare Parts Kit | O-rings | assembled plug | assembled diaphragm |
TECHNICAL DESIGN
Technical design
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Certificate N° 50 100 13311
