ZZWP Self-operated temperature control valve
ZZWP Self-operated temperature control valve Overview:
Self-operated temperature regulating valve is mainly composed of control valve and thermostat, is a kind of energy saving products without external energy and rely on the temperature change of the controlled medium itself to automatically adjust. Has a wide range of temperature setting, clear display, high precision, and is equipped with overload protection device, safe and reliable, so widely used in chemical, petroleum, electric power, metallurgy, food, textile, residential buildings, hotels, restaurants and other heating, water supply, refrigeration, sterilization and other equipment temperature automatic regulation.
The nominal diameter of this series of products is from 20 to 200mm, the nominal pressure is 1.0, 1.6, 4.0, 6.4MPa, the temperature range of Mingke valve is from -20 ° C to 350 ° C, and the signal is 0~10mA.DC or 4~20mA.DC to change the flow rate of the adjusted medium, so that the controlled process parameters are maintained at the given value. The single-seat adjustment type is suitable for small pressure difference, large medium viscosity or slightly granular impurities. Sleeve regulating type is suitable for large pressure difference occasions.
Main parts materials
Valve body, valve cover: HT200, ZG230-450, ZG1Cr18Ni9Ti Sp
ool: ZG1Cr18Ni9Ti, Stailai alloy surfacing reinforced polytetrafluoroethylene
packing: polytetrafluoroethylene, flexible graphite
push rod, bush: 2Cr13
gaskets: Rubber asbestos board, 10, 1Cr18Ni9Ti asbestos winding gasket
bellows: 1Cr18Ni9Ti
Technical parameters
The performance index of this product is GB/T4213-92. Related technical parameters of electric actuator
The data in the table is only the general configuration, the specific selection is based on the main parameters and user requirements.
Allowable pressure difference
Single-seat adjustable type allowable differential pressure table bit: MPa
Sleeve adjustable type allowable differential pressure gauge
If the allowable pressure difference is greater than the nominal pressure, take the nominal pressure value.
Performance indicators
Common type unit: mm
Electronic type unit: mm