The series control valves of NFCVR is designed for use in ventilation systems where radioactive substances are present.

The series dynamic air flow control valve of NFCVR is a new type of electric pressure independent air volume control regulating valve, The outer shell is in a flat shape,equipped with an air volume measurement device, controller, and electric actuator.

The utility model can be used for air volume control of supply and exhaust air (or return air) of fixed air volume and variable air volume air conditioning ventilation systems. When the air valve is fully open, it has certain resistance, Provides a high enough weight for the valve, thereby greatly improving the stability of the branch.

The Series of NFCVR 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 air volume measured with true, real value difference of NFCVR is ≤ 5%.

Stress is irrelevant

In properly designed and installed systems, wind is a control deviation is ≤ 5%.

High tightness

In accordance with EJ/T 1096-1999  the《Sealed chamber sealing classification and inspection methods》，the relevant provisions, Under the  pressure of 3000pa, the air mixing capacity of the valve body meets the allowable value of the standard of the 2-stage valve body.

Quality of material

304 /316(L) 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.

keep warm

Provide thermal insulation options outside the valve body.

Special occasions

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