Instructions for use:
ZZYVP self-operated pressure (differential pressure) regulating valve (referred to as ZZYVP nitrogen sealing valve), which is composed of valve body, valve seat, valve core components and other parts, is an energy-saving product that directly relies on the pressure change of the adjusted medium itself to automatically adjust the pressure without additional energy, and can be used for non-corrosive (good high temperature 350 degrees Celsius) pressure device of liquid, gas and steam and other media. It is widely used in petroleum, chemical, metallurgical, light industry and other industrial sectors, as well as urban heating and heating systems.
Product features:
Self-operated pressure regulating valves do not require additional energy and can work in places without electricity and gas, which is convenient and energy-saving.
The pressure segment range is fine and intersecting, and the adjustment accuracy is high.
The pressure setpoint can be set continuously during operation.
For the pressure adjustment after the valve, the ratio of the pressure in front of the valve to the pressure behind the valve can be 10:1~10:8.
Rubber diaphragm detection, actuator measurement accuracy is high and action is sensitive.
The pressure balance mechanism is used to make the control valve responsive and precise control.
Ordering instructions
The name and model of the regulating valve
Nominal pressure Mpa
Nominal Diameter (mm)
Rated flow factor (Kv)
Inherent flow characteristics
Media Name
Operating temperature and range
The mode of operation of the whole machine
pressure set point and adjustment range
Valve body, valve trim and packing material
Attached attachments
Other special requirements