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GZ840 Small Flow Self Operated Micro Pressure Control Valve

GZ840 small-flow and self-pressure regulating valve is a kind of spring-set direct pressure regulating valve. It can change the pressure of the gas to a very low level at one time, which is only used for the control after the valve. It can be applied to the micro-pressure control system of all kinds of gases, especially for micro-pressure nitrogen sealing system. The lowest control pressure is 0.2KPa, and the maximum control pressure is 15KPa. The lowest temperature is -48 C, and the maximum use temperature is 120.

Performance Characteristics   

1、Compact structure --- the built-in spring structure makes the pressure regulating valve more compact, and has better protection.
2、No packing----with the control of the micro pressure, any friction resistance will impact the accuracy of pressure regulating valve. The valve without packing structure allows good sensitivity of the pressure structure, and reduces the leakage point.
3、Thrust amplification----micro pressure control valve has limited tension generated by the executional mechanism for the low control pressure. Pressure regulating valve magnify the small force generated by the diaphragm assembly 6 times with the lever force amplification mechanism of regulating valve to achieve good adjustment property and pressure resistance. In the same time, downstream flow is reduced to "0", and the valve core can turn off fluid in micro-pressure state, preserving the pressure of the system.
4、valve factory cannot predict the field piping and installation space, so it is often found that due to the peripheral equipment, the pressure adjusting valve adjustment is affected and hard to observe after installation. SP439 pressure valve actuator together with the regulating mechanism can do 360-degree rotation in the non-disintegration state, the original performance parameters are not affected after adjustment.
5、The clip connection form saves space to reduce costs.

Specifications   
Body Size 1/2"(DN15)~1"(DN25)
Body Rating ANSI Class 150#
Fluid Temp -48~+120℃
Connections Clip on(WF)
Body Materials WCB,CF8,CF8M,CF3,CF3M,etc.
Plug Materials 304(L),316(L),etc.
Seat Leakage ANSI Class IV(Cv×0.01%)
Rangeability 20:1
Flow Characteristics Normal
Product Advantage   

1、Screw type adjustment mechanism allows the adjustment of the pressure easier, more convenient and rapid.
2、The valve core is a soft sealing structure, and the fluid can be easily cut off when the valve core is closed.
3、Actuator, as an important part of the pressure regulating valve, is formed with the stainless steel sheet, and has a very high pressure endurance and long service life.
4、The determination principle of each structure of GZ830 pressure relief valve is to achieve the most convenient installation and maintenance on the premise of ensuring the performance index. The internal inspection and maintenance of the valve body can be carried out without removing the valve body or special tools. The principle of the valve cover center positioning eliminates all unnecessary duplication of cooperation, and enough space is left within the pieces, so that the inner parts can be easily removed or put into, even in the corrosive carbon steel valve.

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