Electric high-pressure angle regulating valve

The JTLS electric angle high-pressure regulating valve consists of PS-ZS series and 3610 series linear electric actuators, as well as a low flow resistance straight through single seat valve.. The electric actuator is an electronic integrated structure with a servo amplifier inside. By inputting control signals (4-20mADC or 1-5VDC) and power supply, the valve opening can be controlled to adjust working parameters such as pressure, flow rate, liquid level, and temperature. It has the characteristics of sensitive action, simple connection, large flow rate, small volume, and high adjustment accuracy.

Angular high-pressure regulating valve is a product developed to address the serious problems of short service life, valve stem breakage, and liner detachment of regulating valves under harsh working conditions such as high pressure or high pressure difference, severe cavitation, and erosion. It adopts a multi-stage throttling form to share the pressure difference, reducing cavitation, erosion, and flow damage, greatly improving the service life of the regulating valve, especially when used in urea systems, which is 2-3 times longer than ordinary high-pressure valves. The valve body is right angled, and the valve core is a single guide structure. The valve body has a simple flow path and low resistance, making it particularly suitable for regulating high viscosity fluids containing suspended solids and granular media, which can avoid coking, bonding, and blockage.

Main parameters of electric high-pressure angle regulating valve nominal diameter (mm) 6 10 15 25
Valve seat diameter (mm) 3 4 6 4 5 7 8 10 6 7 8 10 12 7 8 10 16 20
Flow coefficient Kv 0.04 0.1 0.4 0.4 1 1.6 2.5 4 6.3 8
0.16 0.4 0.16 1 1.6 2.5 0.63 1 1.6 2.5 4
0.063 0.25 0.25 0.63
Nominal diameter (mm) 32 40 50 65 80 100 125 150 200
Valve seat diameter (mm) 16 20 30 20 38 30 50 38 65 50 80 65 100 65 125 100 150 125 200
Flow coefficient 6.3 8 16 8 25 16 40 25 63 40 100 63 160 250 160 400 250 600
When the adjustable range Kv value is less than 18, R=20:1; When Kv value>18, R=30:1
Nominal pressure 1.6, 4.0, 6.4, 10, 16, 22, 32MPa
Valve core form: sleeve guided single seat plunger type valve core
Flow characteristic straight line
Function forms: electrically open and electrically closed
Working temperature: ordinary type -40~230 ℃; Heat sink type 230-450 ℃, special order 450-600 ℃
The flange standard complies with JB/T2769-92 standard and can be ordered and produced according to ANSI, JIS, DIN, etc
Control signal 4-20mA.DC; 1～5V.DC; 0-10V.DC (depending on the accompanying actuator)
Power supply S220V.AC, 50HZ; 380V.AC, 50HZ (depending on the accompanying actuator)

Electric high-pressure angle regulating valve
Nominal diameter (mm) 20 25 40 50 65 80 100 150 200 250 300
Seat diameter (mm) 10 12 15 20 25 32 40 50 65 80 100 125 150 200 250 300
Flow coefficient Kv 1.6 2.5 4 6.3 10 16 25 40 63 100 160 250 1600
Adjustable range 30:1
The nominal pressure standard products are 1.6, 4.0, 6.4... 42MPa;
Valve core form: single seat plunger type valve core
Flow characteristics straight line, equal percentage
Working temperature: ordinary type -40~230 ℃; Heat sink type 230-450 ℃, special order 450-600 ℃
The flange standard complies with JB78-59 and JB79-59 standards, and can be ordered and produced according to JB/79.1-94, JB/79.2-94, ANSI, JIS, DIN and other standards

Note: Products with working temperature, nominal pressure, and nominal diameter exceeding the listed range can be resolved through negotiation with our company.

Main technical performance indicators of electric high-pressure angle regulating valve
Leakage rate: Level IV, 10-4 below rated flow rate
Return difference: Equipped with 3610L actuator, it is 2.0%; Equipped with PSL actuator at 1.0%
Basic error: ± 2.5% with 3610L actuator; The PSL actuator is equipped with ± 1.0%. Note: The filler used for testing is standard polytetrafluoroethylene filler.

Main component materials of electric high-pressure angle regulating valve
Valve body material: ZG230-450, ZG1Cr18Ni9Ti, 316, 316L, wear-resistant alloy, etc
Core material: 1Cr18Ni9Ti, 316, 316L, wear-resistant alloy, F4, etc
Packing material: polytetrafluoroethylene, flexible graphite

Electric high-pressure angle regulating valve allows differential pressure nominal diameter (mm) 20 25 40 50 65 80 100 150 200 250 300
Seat diameter (mm) 10 12 15 20 25 32 40 50 65 80 100 125 150 200 250 300
Allowable pressure difference △ P (MPa) for the actuator
Equipped with PSL PSL202 6.4 6.4 4.90 3.14 1.92 1.23 0.78
PSL204 4.31 2.76 1.76 1.04 0.69 0.44
PSL208 1.86 1.23 0.78 0.50 0.35 0.20
PSL320 1.26 0.87 0.49 0.32 0.22
Equipped with PSL 361LSA-20 6.4 6.4 4.90 3.14 1.92 1.23 0.78
361LSB-50 4.79 3.06 1.96 1.16 0.76 0.49
361LSC-65 1.51 0.99 0.64 0.41 0.28
361LSC-99 0.63 0.44 0.25 0.16 0.11
Note: (1) The actual configuration needs to be determined based on specific process parameters.
(2) If the allowable pressure difference is unclear or the maximum working pressure difference exceeds the list range, please contact us and take appropriate measures to solve it.

Dimensions and weight of electric high-pressure angle regulating valve

Public diameter (mm) 20 25 32 40 50 65 80 100 125 150 200
L1（mm） 98 105 105 120 135 190 225 270 315 367
L2（mm） PN1.6MPa 85 95 115 115 130 145 155 175 200 240 300
PN4.0MPa 85 95 115 115 130 145 155 175 200 240 300
PN6.4MPa 100 115 130 130 150 170 190 215 250 275 325
Equipped with PSL H (mm) regular type 753 761 789 778 793 819 858 893 921 951 956
Heat sink type 883 891 919 908 923 892 1120
D（mm） 176
Weight (KG) 13.5 22.5 25.5 29.5 50 60 78 119 157 255
Equipped with 361L H (mm) regular type 516 542 552 688 744 783 818 976
Heat sink type 646 654 682 818 907 946 981 1235
D（mm） 225 310
Weight (KG) 21 30 33 41 45 65 75 93 172 210 308

Note: The data in this table is standard configuration data and may vary depending on the configuration of the executing mechanism.

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Shanghai Jiatai Valve Co., Ltd. specializes in electric high-pressure angle regulating valves and is also one of the excellent suppliers of regulating valves in China

Regulating valves, also known as control valves, are used to regulate process parameters such as medium flow rate, pressure, temperature, and liquid level in the field of industrial automation process control. According to the control signal in the automation system, the opening of the valve is automatically adjusted to achieve the regulation of medium flow rate, pressure, temperature, and liquid level. Regulating valves are usually composed of an electric or pneumatic actuator and a valve body. There are mainly two types of straight stroke: straight through single seat and straight through double seat. The latter has the characteristics of large flow capacity, small imbalance, and stable operation, so it is usually particularly suitable for situations with high flow rate, high pressure drop, and low leakage. Angular stroke mainly includes: V-shaped electric regulating ball valve, electric butterfly valve, ventilation regulating valve, eccentric butterfly valve, etc. The flow capacity Cv value is one of the main parameters for selecting a regulating valve. The definition of the flow capacity of a regulating valve is: when the regulating valve is fully opened, the pressure difference between the two ends of the valve is 0.1MPa, and the fluid density is 1g/cm3, the flow rate per hour of the regulating valve is called the flow capacity, also known as the flow coefficient, expressed in Cv, with the unit of t/h. The Cv value of the liquid is calculated according to the following formula. The nominal diameter DN of the regulating valve can be determined by looking up the table according to the size of the flow capacity Cv value. In the automatic control of modern chemical plants, the regulating valve plays a very important role. The production of these plants depends on the correct distribution and control of the flowing liquid and gas. These controls, whether it is energy exchange, pressure reduction, or simple container feeding, require certain final control components to be completed. The final control element can be considered as the "physical force" of automatic control. The final control component completes the necessary power amplification between the low energy level of the regulator and the high energy level required to perform flow fluid control.

Flow characteristics of regulating valve:
The flow characteristics of a regulating valve are the relationship between the relative flow rate of the medium passing through the regulating valve and its opening, under the condition that the pressure difference between the two ends of the valve remains constant. The flow characteristics of regulating valves include linear characteristics, equal percentage characteristics, and parabolic characteristics. Percentage characteristics, linear characteristics, and parabolic characteristics of regulating valves.
Overview of the following four traffic characteristics:
1. Equal percentage characteristic
The relative stroke and relative flow rate of the equal percentage characteristic are not linearly related. The change in flow rate caused by the change in unit stroke at each point of the stroke is proportional to the flow rate at that point, and the percentage of flow rate change is equal. So its advantage is that when the flow rate is small, the flow rate change is small, and when the flow rate is large, the flow rate change is large, which means it has the same adjustment accuracy at different opening degrees.
2. Linear characteristics
The relative stroke and relative flow rate of linear characteristics are linearly related. The flow changes caused by changes in unit travel are constant. When the traffic is high, the relative value of the traffic changes slightly, while when the traffic is low, the relative value of the traffic changes greatly.
3. Parabolic characteristic
The flow rate varies proportionally to the two sides of the stroke, and generally exhibits intermediate characteristics of linearity and equal percentage.

In the automatic control of modern chemical plants, regulating valves play a very important role. The production of these plants depends on the correct distribution and control of flowing media. These controls, whether it is energy exchange, pressure reduction, or simple container feeding, require certain final control components to be completed.

The regulating valve plays a variable resistance role in the pipeline. It changes the turbulence of the process fluid or provides a pressure drop in laminar flow, which is caused by changing the valve resistance or "friction". This pressure reduction process is commonly referred to as "throttling". For gases, they are close to an isothermal adiabatic state, and the deviation depends on the non ideal degree of the gas (Joule Thomson effect). In the case of liquids, pressure is consumed by turbulence or viscous friction, both of which convert pressure into heat energy, resulting in a slight increase in temperature.

Classification of regulating valves by purpose and function
a. Two position valve: mainly used to close or connect media;
b.regulating valveMainly used for regulating systems. When selecting a valve, it is necessary to determine the flow characteristics of the regulating valve;
c. Diverter valve: used for distributing or mixing media;
d. Cut off valve: usually refers to a valve with a leakage rate of less than one hundred thousandth.
Regulating valves are classified according to their main parameters
1. Classified by pressure
(1) Vacuum valve: working pressure lower than standard atmospheric pressure;
(2) Low pressure valve: nominal pressure PN ≤ 1.6MPa;
(3) Medium pressure valve: PN2.5-6.4MPa;
(4) High pressure valve: PN10.0-80.0MPa, usually PN22, PN32;
(5) Ultra high pressure valve: PN ≥ 100MPa.
2. Classified by working temperature of the medium
(1) High temperature valve: t>450 ℃;
(2) Medium temperature valve: 220 ℃ ≤ t ≤ 450 ℃;
(3) Normal temperature valve: -40 ℃ ≤ t ≤ 220 ℃; ④ Low temperature valve: -200 ℃ ≤ t ≤ -40 ℃.

Installation and maintenance of regulating valves
Regulating valve is a very common and important control equipment in industrial production, and its normal operation directly affects the normal production of the entire device. At present, with the rapid development of regulating valve technology, there are many manufacturers and forms of regulating valves, and their functions are also different. The following focuses on the common issues that various types of regulating valves should pay attention to before installation and operation.
1. The incoming inspection of the regulating valve before installation is a very important step to confirm whether the arrival of the regulating valve meets the design requirements. Each technical requirement of the regulating valve should meet the design requirements, but the following items should be emphasized during the incoming inspection.
2. The specifications of the valve body/internal components mainly include: valve model, valve type, nominal diameter, seat size, valve core form, flow characteristics, leakage level, valve body material, valve core material, valve seat material, CV value, flange standard grade size, and sealing surface form. If any content is found to be inconsistent with the design, it should be confirmed and approved by the design.