Pressure Relief Valves SPV, SPVF Series Kracht

Pressure Relief Valves SPV, SPVF Series
Pressure Relief Valves SPV, SPVF Series

The pressure relief valve SPV/SPVF is a direct spring sliding piston valve. It is intended for mounting in pipelines and is suitable to safeguard low pressure hydraulic circuits. The pipe connection is to be effected either by SAE-mounting surfaces (3000 psi) or by With worth pipe threads ”G“.

Notes:
– When using strongly aerated media, the valve should preferably be mounted vertical with the setscrew facing down.
– The tank connection T of the valve must not be exposed to under pressure when subject to flow (Q > 0), as in this case the valve cannot be ventilated, possibly resulting in unwanted vibrations and noise. If this is unavoidable, the special solution (S33) provides an alternative.

Application:

Explosion protection – Field of application for the pressure relief valves. The valve is used to secure low pressure hydraulic circuits with various flammable and non-flammable fluids.
They can be used:

  • In Zone 2 (Gas-Ex, Category 3 G) in the explosion groups IIA, IIB and IIC
  • In Zone 22 (Dust-Ex, Category 3D), in the explosion groups III A and III B at non-conductive dusts with a minimum ignition energy >1mJ
  • In Zone 1 (Gas-Ex, Category 2 G) in explosion groups IIA, IIB and IIC
  • In Zone 21 (Dust-Ex, Category 2D) in the explosion groups III A and III B at non-conductive dusts with a minimum ignition energy >1mJ

Another Article:

Specification:

Product name / Nominal size SPV  = NG 10
SPVF = NG 20 … 80
Construction Slide valve / directly-operated
(Poppet valve on request)
Mounting Pipe connection / panel mounting
Pipe connection Flange connection ISO 6162-1 (SAE J518)
Pipe thread ISO 228-1
Fitting position any, pressure setting screw below preferred
Housing material EN-GJL-300 (EN-GJS-400-15)
Type setting Mechanical   Set screw
Knob
Accessories Welding flange SAE (3000 psi)
Hydraulic fluids Hydraulic oils acc. to DIN 51 524/25

Hydraulic Characteristics

Nominal size 10 20/25 32/40 50
Max. flow rate Q l/min 40 90 450 550
Nom. working pressure bar 30 30 25 25
Setting range response pressure  pv min bar 0.5 0.5 0.5 0.5
pv max bar 30 40 25 25
Media temperature NBR ϑm = –20°C… 90 °C (Design A + E)
FKM ϑm = –15°C… 150 °C (Design C + K)
Copper ϑm = — 20 °C… 220 °C (Design B + F)
Soft iron ϑm = –40°C… 220 °C (Design D)
Ambient temperature ϑu = — 20 °C… 60 °C (NBR, copper, soft iron)
ϑu = — 15 °C… 60 °C (FKM)

Download Data Sheet: Pressure Relief Valves SPV, SPVF Series

Ref: Krachtcorp.com

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