KHPM electric high-pressure control valve is designed for high temperature and high pressure conditions. High strength, heavy load. The structure of the valve body is compact, the pressure drop loss is small, the valve guide area is large, and it has good vibration resistance and low leakage rate, and it is generally suitable for the smaller pressure condition due to the unbalanced structure. 

KHM series of high-pressure balance cage valve with pressure balanced structure of the valve core, high temperature, high pressure conditions, high design, high strength, heavy load. 

Low leakage type valve cage with a sealed ring structure, close tight; porous cage, sleeve with symmetrical holes to reduce fluid noise, reduce cavitation. This series of valves to adapt to a variety of pressure and temperature of the fluid or gas control, suitable for pneumatic, electric and other actuators 

Product specification  

Specification Name Industrial Control Valve Structure Length Flange Standard Pneumatic Regulator Pressure Level 

International Standard IEC 60534-1 IEC 60534-3-1 ASME B16.5 IEC 60534-4 ASME B16.34 

National standard GB/T17213 GB/T17213.3 JB/T79、HG20592、GB/T9113 GB/T4213 GB/T9131 

Main parameters of the valve body 

Type Sleeve Guide Straight Through High Pressure Cage Valve 

Nominal diameter DN25 ~ DN300 

Nominal pressure PN160,250,420, ANSI CL900, 150000, 2500 

Valve body cover material WCB, WC6, WC9, CF8, CF8M and so on 

Trim material 304,316 and so on 

Filled PTFE V-shaped, flexible graphite, PTFE packing, flexible graphite clip nickel wire 

Actuator pneumatic, electric 

And actuator connection bolt compression type, round nut lock type 

Bonnet type standard type, high temperature type 

Connection type Flange type (RF, MFM, RJ), welding type (SW, BW) 

The flange is as follows 

Operating temperature -29 ~ +230 (standard), +230 ~ +560 (medium temperature) 

Leakage Level ANSI B16.104 IV, VI, Zero Leakage 

Flow characteristics such as percentage, linear, switch 

Inherent adjustable ratio of 50: 1 

Rated flow coefficient and stroke Nominal diameter 20 25 32 40 50 65 80 100 125 150 200 250 300 

Seat diameter 20 25 32 40 50 65 80 100 125 150 200 250 300 

Rated Cv Percentage ANSI 900,1500 6.0 12 17 25 52 78 110 180 270 375 650 900 1400 

Equal percentage 

ANSI 2500 5.0 8 12 17 31 52 78 125 180 270 470 720 1000 

Linear ANSI 900,1500 7.0 12 20 30 62 90 135 210 330 485 700 1000 1500 

Linear 

ANSI 2500 5.0 8 12 20 43 62 90 150 210 330 520 800 1200 

Rated travel 16 25 40 60 100 

The valve flow coefficient in the table above is the standard configuration, you can replace the trim to meet the different flow requirements   

Installation Precautions

The new design and installation of the control system, in order to ensure that the control valve in the car to work properly, and make the system safe operation, the new valve before installation, should first check the valve nameplate logo is consistent with the design requirements. The following items should also be commissioned: basic error limit; full trip deviation; hysteresis; dead zone; leakage (in demanding cases). 

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If the original system of the control valve overhaul, in addition to the above items for verification, but also the old valve stuffing and connection and other parts of the sealing check. 

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In the use of control valve, many are often not due to the quality of the control valve itself, but the improper use of the installation of the valve caused by, such as the installation environment, improper installation location and direction or the pipeline is not clean and other reasons. So the control valve in the installation of the use of attention to the following aspects: 

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(1) regulating valve is a field instrument, the ambient temperature should be in the range of -25 ~ 60 ℃, relative humidity ≤ 95%. If it is installed in open air or high temperature occasions, should take waterproof, cooling measures. In a place where there is a source away from vibration sources or increase anti-vibration measures. 

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(2) regulating valve should be installed vertically, in particular, can be tilted, such as the tilt angle or the valve itself is too large when the weight of the valve should be increased support. 

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(3) the installation of the valve control valve is generally not too far from the ground or the floor, the pipe height greater than 2m should try to set the platform to facilitate the operation of hand wheel and easy maintenance. 

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(4) the control valve should be installed before the pipeline cleaning, remove dirt and welding slag. After installation, in order to ensure that no impurities remain in the valve body, the valve should also be cleaned again, that is, access to the media should make all the valve open, so as not to impurity stuck. After using the handwheel mechanism, it should be restored to the original neutral position. 

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(5) In order to make the control valve in the event of failure or maintenance of the production process can continue, the control valve should be bypassed pipeline, but also should pay special attention to the installation of the valve position is consistent with the requirements of the process. 

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(6) The electrical installation of the control valve shall be carried out in accordance with the relevant electrical equipment construction requirements. If the flameproof products should be "explosion hazard electrical equipment installation specifications" requirements for installation. In the use of maintenance, in the explosive place is strictly prohibited to open the lid and repair the surface of the explosion. At the same time in the disassembly do not knock or scratch the exposed surface, after repair to restore the original explosion-proof requirements of the state. 

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(7) after the implementation of the agency should pay attention to refueling lubrication, low-speed motor generally do not wash and refuel. After assembly should also check the valve position and valve opening indicator is consistent.