Description

This is a resin type union straight check valve that allows free flow in one direction and prevents it from going in the opposite direction. The valve has a spring loaded poppet that blocks the orifice of the valve. If the air is coming from the poppet side, the poppet will be pushed from the base of the orifice and the air will go through. If the air comes from the opposite side it will press the poppet against the base and block its way.

It has 4 mm push-in fittings on both sides. The push-in fitting provides an easy connection with the tubing. Push the tube in and the fitting will fix it with stainless steel claws.

It is suitable for a maximum operating pressure of 9 bar (130.5 psi. Also suitable for vacuum applications at a pressure of -1 bar (-14.5 psi). It has NBR seals that make it suitable for applications within a temperature range from 0 to 60°C (32 to 140 °F) (no freezing).

Pros:

• Suitable for vacuum applications
• Equipped with easy to connect push-in fittings

Cons:

• Dust could damage the pneumatic system if vacuum is applied without a filter on the inlet side

CVPU series

The CVPU – series includes straight resin type spring loaded check valves that provide one-directional flow of the air. These valves have push-in fittings on both ports. The sizes range from 4 to 8 mm. The maximum operating pressure is at 9 bar, also suitable for vacuum applications at a minimum pressure of -1 bar. These valves have a cracking pressure of 0.1 bar. The check valves are NBR sealed which make them suitable for a temperature range from 0 to 60°C (no freezing).