The series control valves of NFCV and NPCV(L) is designed for use in ventilation systems where radioactive substances are present.

The series dynamic air flow control valve of NFCV is a new type of pressure independent air flow control valve. Cylindrical enclosure with air flow measuring device, controller and electric actuator, This product is suitable for controlling air volume control of supply and exhaust air (or return air).

NFCV has 7 specifications. Recommended air volume coverage 10-3,200 m³/h, suitable for medium and small wind applications.

Note 1: This product has obtained a national invention patent number: ZL 2022 1 0346151.7. 

The series of NFCV air volume and working pressure difference parameter table

Install

Can be directly installed in the header and tee downstream, no straight pipe section requirements. It can be installed horizontally, vertically or obliquely, The measured value of NFCVR air volume deviates from the true value is ≤3%.

Stress is irrelevant

In properly designed and installed systems，air Volume Control Deviation is ≤5%.

High tightness

In accordance with the EJ/T 1096-1999 《Sealed chamber sealing classification and inspection methods》, the relevant provisions，Under the pressure of 3000 pa, the air mixing capacity of the valve body meets the allowable value of the standard of the 2-stage valve body. In accordance with the NBT 20039.2《relevant provisions of the code for Nuclear Air and gas treatment》，the valve sheet meets the leakage requirements of Class Ⅲ.

Quality of material

304(316L) Stainless steel or carbon steel; Fire resistance, high and low temperature resistance, corrosion resistance.

Actuator lost power reset

Provide actuator loss of power valve position hold (standard) and loss of power after full open or full closed options.

Special occasions

If there are special requirements, can be customized according to the project requirements.