Type 670 & 690 Enclosed Discharge Safety Relief Valves for Liquids
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Datasheet:

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| Min. Pressure | - | 0.70 bar g. (10.15 psi g.) | Max. Pressure | - | 30.00 bar g. (435.00 psi g.) | Temperature Range | - | -40 °C to 200 °C (subject to seal material) | Inlet Connection(s) | - | 3/8" to 2" BSP, BSPT orNPT | Outlet Connection(s) | - | 2 BSP or NPT | Flow Rate | - | Refer to Flow Tables on the datasheet | Materials | - | Bronze & Brass or Bronze & St. Steel or St. Steel | Seal Materials | - | Viton® Nitrile Neoprene Ethylene Propylene
| Test Certification | - | Included - supplied Free of charge
| Approvals | - | UKCA - PE(S)R BS EN ISO 4126-1 Pressure Equipment Directive, PED (CE marked) EAC customs union (Russia, Belarus and Kazakhstan) |
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Flows Rates:
See datasheet
Product Description:
Enclosed Discharge Safety Relief Valves for Liquids, available with 10, 13, 18, 20 or 25mm nominal bore.
Materials:
Bronze body with either brass or stainless steel inlet.
Notes:
Relieving pressure is set pressure +25%
Reseating pressure is set pressure -20% (0.6 bar g. below 3.0 bar g.)