Self-operated pressure control valve (hereinafter referred to as pressure valve) is an energy-saving product that does not require external energy and only relies on the pressure changes of the regulating medium to automatically regulate pressure. It has comprehensive functions of measurement, execution, and control. Widely applicable to industrial sectors such as petroleum, chemical, metallurgy, light industry, as well as urban heating and heat supply systems. Can be used as a pressure control device for non corrosive liquid, gas, and steam (Max. temperature 350 ℃).
FEATURES:
Energy saving: No need for external energy, use the pressure of the pipeline itself for regulation
Simplified system: No need for external control instruments, simple system with low cost
High safety: Used for non electric and non gas situation, with no risk from external energy sources, sleeve guide, balanced trim
Easy to operate: Simply rotate the adjusting nut for setting
Reliable quality: Low noise, maintenance free, and reliable performance
Note: The working environment is outdoors, so protective devices need to be installed and insulation work should be done well in cold northern regions
Valve body | ||
Nominal diameter | DN20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300mm | |
Nominal pressure | PN1.6, 4.0, 6.4MPa | |
Flange standard | JB/T79.1-94, 79.2-94, etc. | |
Valve body material | Cast iron (HT200), Cast steel (ZG230-450), Cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti) | |
Valve body type | Single seat (P), Double seat (N), Sleeve (M) | |
Valve core material | Hard seal | Stainless steel (1Cr18ni9Ti, 1Cr18Ni12MoTi) |
Soft Seal | Stainless steel inlaid rubber ring | |
Valve stem material | Stainless steel (1Cr18ni9Ti, 1Cr18Ni12MoTi) | |
Pressure balance | Stainless steel bellow | |
Flow characteristic | Quick open | |
Working temperature | -20-80℃ -20-350℃ |