The YV25 is a ¼” nominal bore check valve with integral reverse thermal relief function. It will allow flow in one direction, and blocks flow in the opposite direction, unless a preset pressure differential is exceeded.
The valve may be used in applications where pressure trapped on the outlet side of the check valve is subject to thermal expansion that would cause local over-pressurisation of the trapped volume. It is essential that the volume on the inlet side of the valve is able to accept any relieved fluid without inlet side pressure rising significantly, hence the valve is typically only suitable for systems where an accumulator is directly connected to the piping on the inlet side of the valve.
The YV25 is not classed as a safety accessory within the Pressure Equipment Directive (97/23/EC) and may only be used to protect pressure equipment falling within Article 3, Clause 3 of the Directive.
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Valve Type: | YV25 |
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Porting/Connection Options: | P 1/4" BSPP female - N 1/4" NPT female |
Max. Working Pressure: | 828 bar (12,000 psi) |
Port Size: | 1/4" |
CV Value: | Up to 0.8 |
Dry Weight: (kg) : | 0.3 kg (0.7 lb) |
Working Temperature Range: | -10°C to +120°C |
Seal Material: | Viton® - EPDM - Kalrez® - Nitrile - Hydrogenated Nitrile |
Working Media: (std) : | Liquids only |