The SPF(SP)type digital lock balance-valve is used for balancing the hydraulic regime of the liquid circulation network. It possesses the excellent characters about the control, the blockage, the opening rate display and the opening rate lock. It can save energy and electricity when it is used in the heat-supply system or the air-conditioning system.

Function and characters

Excellent control character
1. Excellent back-prevention character
2. Nominal pressure: 1.6Mpa, 2.5Mpa
3. Medium temperature: 0-150 deg c
4. The accuracy of the opening rate display: 1/10 ring.
5. The theoretical flow characteristics line
6. Approximately is equal percentage. When the opening
7. Rate of the valve is 30-50%, the actual flow characteristics line is linear
8. The material of the valve body: Grey cast iron, carbon cast steel, forging alloy copper.