how do motorised valves work

Brand Name:SAIKO

Model Number:SKC

Place of Origin:Nanjing,China

...a controller in zone and fan coil applications.The valve is driven by hysteresis synchronous motor with spring return. The valve is normal-closed. When thethermostat is working, it will provide an opening signal, and the motorized valve will be turned on

Brand Name:Original

Model Number:DDF series

Place of Origin:China

Motorised Valve For Refrigeration / Air Conditioning System, Condensing Unit, Refrigeration Unit Features ● Body material: forged brass ● Stem material: stainless steel06Cr19Ni10 ● Sealing material: nitrile rubber (NBR) ● Working medium: cold/hot ...

Brand Name:Hengxiang

Model Number:DDF-S-X- DN32, DN40, DN50, DN65, DN80,DN100, DN125, DN150,DN200

Place of Origin:China

Cast Ironed electrically operated valve Suitable for Siemens Actuator, used in the liquid control system, HVAC control Product Info: ● Stem seal: Four layer V type O nitrile rubber seals, PTFE envelope ● Stem material: stainless steel 06Cr19Ni10 ● Valve ...

Brand Name:Runpaq

Model Number:8018-Maglock

Place of Origin:China

...valve, 2 way motorised zone valve, Valve body: brass, DN15 Product Description We produce the best mini motorized valve. Its pressure rating is PN16, more than 100,000 cycles life cycles. Our DC motorised valve can attached to IC card prepay water meter, AMR water meter, or used to control the flow of hot water in a central heating system. The motorised valve can be used for control of both heating and hot water, and it works

Brand Name:SUFA

Model Number:D371X

Place of Origin:China

Big size lug type body butterfly valve Type: Lugged Face to face: API509,BS5155,DIN3202,ISO5752 Flange:DIN,BS,UNI,ISO,ANSI,AS,JIS Size DN50--DN600 Normal Pressure PN10/PN16,150-300 Lb Working Temperature -15c---30c Suitable Medium Chemicals,air,water,steam...