Product Code : VF--TJCC-TJ5-CU
l Structure category: Self-reliant
l Structure type: single-seat balanced two-seat balanced type
l Spool type: pressure balance type
Nominal pressure: 1.6MPa
l Valve diameter: DN20~300 (3/4~12 ")
l Applicable temperature: -20~+80℃ 0~+200℃
l Leakage standard: Ⅳ, V, Ⅵ
l Connection mode: flange, thread, welding
Commonly used materials for main parts;
Body, valve cover :ZG230~450/ZG1Cr18Ni9, WCB, CF8, CF8M, CF3M
Spool, seat: 1Cr18Ni9Ti, 304, 316, 316L +PTFE
Pad: stainless steel + flexible graphite
Film cover: A3, 1Cr18Ni9Ti
Corrugated diaphragm: Nitrile, ethylene propylene, fluorine, oil resistant rubber
Spring: 60Si2Mn
Valve stem: 1Cr18Ni9Ti, 304, 316, 2Cr13
Pressure guide tube: copper, stainless steel
Special requirements Special inspection. Use under vacuum conditions;
Completely remove oil and water management; Special media (such as oxygen); No copper treatment; Use stainless steel connectors; Special interface, piping. Specify layer color
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The set point pressure is transmitted to the actuator through the pressure guide, which causes the actuator to act and establish a dynamic balance with the spring. When the set point pressure changes, the balance is destroyed and the spring generates a force to move the spool, thus bringing the set point pressure back to the set value.
Control mode
Micro-pressure type (ZZV type) : Applied to micro-pressure applications to control set point constant pressure, set point minimum pressure up to 30mmH2O.
Pressure type (ZZV-C type) : control two points of constant differential pressure control valve, often used to control two kinds of material ratio or two points to maintain a constant differential pressure.
peculiarity
l Self-operated micro-pressure regulating valve does not need additional energy, can work in the occasion of no electricity and no gas, convenient and save energy;
l The actuator is equipped with ultra-thin film and sensitive spring design, the whole machine has extremely high sensitivity, the set pressure can reach 30mmH2O;
l Diaphragm type pressure compensation design, completely eliminate the influence of pressure fluctuations on the adjustment accuracy, so that the set point pressure is more fixed;
l The whole machine adopts no packing design, low resistance;
l The pressure segment range is small and interleaved, easy to choose;
Easy pressure setting, continuous uninterrupted setting during operation, maintenance-free use;
l With special pressure tube and joint, the installation is more simple and reliable.
Self-operated micro-pressure regulating valve (nitrogen relief valve) is a kind of automatic adjustment without external energy, using the pressure change of the medium itself to achieve
The action is sensitive, the control precision is high, the energy saving and so on.
The nominal pressure of this series of micro-pressure valves is 0.1MPa, which can be adjusted from 30mmH2O to 0.1MPa in stages, and is widely used for reducing various micro-pressure gases
Automatic control of pressure or pressure relief. ZZV-C pressure differential control type is commonly used in industrial combustion furnace systems to control the mixing of two materials (such as gas/air)
Ratio, to achieve the ideal combustion state.
Packing of Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2022 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
