ZDM Series Automatic Recycle Valve (ARC valve) is a kind of pump
protection device. It automatic protect centrifugal pump when pump
body occur cavitation damage or unstable (especially conveying hot
water at low load operation medium). Once pump flow is lower than
the preseted flow, bypass can completely open to ensure the minimum
required flow pump. Even running fully closed, namely running flow
is zero, the minimum flow can also pass bypass for Automatic
Recycle. Pressure reduced through the multistage bypass pressure
ZDM series Automatic Recycle Valve is suitable for bypass with high
pressure differential, maximum pressure differential is 30MPa, and
specific choice is determined by factory. Multistage decompression
type M type bypass can eliminate noise made by high-speed flow
medium, prevent damage of cavitation erosion and braising to valve
- Prevent cavitation multistage decompression bypass, reducing
velocity, suitable for high pressure conditions
- Forgde valve body, or you can choose carbon steel or stainless
steel material, etc.
- Standard bypass non-return function, maximum working pressure
differential is 30MPa.
- Pressure grade from PN16 to PN420, diameter from DN2to DN500.
- Can select manual bypass operation function, used in fault.
SIZE AND PRESSURE RANGE
- Body type: Three-way forged valve
- Nominal diameter: DN25, 32, 40, 50, 65, 80,100, 200, 250, 300, 350,
400, 450, 500
- Nominal pressure: PN 16,25,40,64,100,160,250,420 CLASS 150, 300,
600, 900, 1500, 2500LB
- End connection: Flange, FF, RF, RTJ, BW, SW etc.