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Needle valves

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Selection Guide

Flow control/silencer VFFK

The VFFK variations are exhaust air needle valves. The air escapes into the atmosphere via the built-in pneumatic muffler (PE, sintered metal) with reduced noise emissions. The products are used for decentralized speed control at the control valve. In the case of a 5/3-way valve with the middle position blocked, "STOP" prevents the valve from running on as far as possible.

Needle valves GRLO, GRGO

The GRLO/GRGO products are needle valves that are ideally suited for direct mounting on the actuator. These products are used in pneumatic systems to realize an adjustable speed in the forward and return stroke. The flow rate is the same in both directions from the valve.

Line installation GRO

The GRO versions are needle valves and are an optimum solution when direct mounting to the actuator is not possible due to installation conditions or other environmental influences. The offer includes a sturdy metal design and a product family for lightweight construction in polymer.

Precision flow control valves GRPO

The GRPO is a needle valve that enables precise, infinitely variable regulation of small flow rates in both flow directions. The flow rate range is from 0.03 to 165 L/min. The scale on the product offers reproducibility and documentation of the setting parameters. There are two different versions – with/without non-return function. Mounting is possible either as front panel mounting or on a mounting plate using the appropriate accessories. In pneumatic applications, this product is also often used as a dosing valve.

Exhaust air flow controls GRU, GRE

The GRU, GRE variants are exhaust air needle valves. The air escapes into the atmosphere via the built-in pneumatic muffler (PE, sintered metal) with reduced noise emissions. The products are used for decentralized speed control at the control valve. Due to their slim or compact design, these options are particularly suitable for tight installation conditions in pneumatics.