electric high differential pressure regulating valve is composed of PS series or 3610 series of straight travel electric actuator and low flow resistance through single seat valve. (also can be equipped with other brands of linear actuators). Electric actuator for the electronic integrated structure, a servo amplifier, the input control signal (4-20mADC or 1-5VDC) and the power to control the valve opening, to adjust to working parameters of pressure, flow, liquid level, temperature etc.. Is sensitive, simple connection, big flow, small volume, high accuracy regulation. The control precision and has better performance than DKZ.
Single seat valve is applicable to strict, valve and pressure is low and has certain viscosity occasions of leakage for. Widely used in electric power, metallurgy, chemical industry, petroleum, environmental protection, light industry, equipment industry.
Main technical parameters:
Nominal diameter mm | G3/4" | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | |||||||||
Seat diameter mm | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 15 | 20 | 26 | 32 | 40 | 50 | 66 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | Production and the company to negotiate | ||
The rated flow coefficientkv | Linear type | 0.08 | 0.12 | 0.20 | 0.32 | 0.5 | 0.8 | 1.8 | 2.8 | 4.4 | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 690 | 1000 | 1600 | ||
The percentage of | 1.6 | 2.5 | 4 | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 | 900 | 1440 | |||||||||
| Nominal pressure (MPa) | 0.6,1.6,2.5,4.0,6.4 | ||||||||||||||||||||||||
| Trip (mm) | 10 | 16 | 25 | 40 | 60 | 100 | |||||||||||||||||||
Flow characteristics | A straight line | Linear, equal percentage, quick opening | |||||||||||||||||||||||
| Working temperature ℃ | -40～230℃(At room temperature),Plate fin230～450℃(Medium temperature),Special orders-100～600℃ | ||||||||||||||||||||||||
| Flange size | In accordance with JB78-59,JB79-59In accordance with,According to the JB/79.1-94,JB,ANSI,JIS,DIN Standard order production | ||||||||||||||||||||||||
Body material | WCB(ZG230-450),ZG1Cr18Ni9Ti,ZG0Cr18Ni12Mo2Ti CF8 CF8M | ||||||||||||||||||||||||
Valve material | 1Cr18Ni9,SS304,0Cr18Ni12Mo2Ti,SS316,ZG1Cr18Ni9Ti | ||||||||||||||||||||||||
The valve type | Through single seat casting ball valve | ||||||||||||||||||||||||
| The valve cover type | Ordinary type (room temperature), hot chip (Zhong Wen), a long necked type (low temperature) | ||||||||||||||||||||||||
| The electric actuator of model | PSL | PSL-201 | PSL-202 | PSL-204 | PSL-208 | PSL-312 | PSL325 | ||||||||||||||||||
| 361L | 361LSA-08 361LXA-08 | 361LSA-20 | 361LSB-30 | 361LSB- 50 | 361LSC-65 | 361LSC-99 | |||||||||||||||||||
| Explosion proof type | 361LXA-20 | 361LXB-30 | 361LXB- 50 | ||||||||||||||||||||||
Note:
1 can provide ANSI, JPI, JPI and other foreign flange standard product for the user, the flange focal distance is determined according to the needs of users.
2 the working temperature, the nominal pressure, nominal diameter exceeds the scope of list products can be solved with the company to negotiate
The implementation of the main technical parameters of mechanism:
Model | Rated output power N | Speed of mm/s | Technical parameters | ||||
| PSL | 361L | PSL | 361L | PSL | 361L | PSL | 361L |
| 201 | 361LSA-08 361LXA-08 | 1000 | 800 800 | 0.25 | 4.2 4.2 | Power supply: AC220V 50Hz Input signal: DC4-20mA DC1-5V (shielding line signal line) The output signal: DC4 ~ 20mA Protection grade: IP67 With the handwheel | Power supply: AC220V 50Hz Input signal: DC4-20mA DC1-5V (shielding line signal line) The output signal: DC4 ~ 20mA Protection grade: IP55 The explosion-proof symbol: Exd II BT4 With handle |
| 202 | 361LSA-20 361LXA-20 | 2000 | 2000 2000 | 0.50 | 2.1 2.1 | ||
| 204 | 361LSB-30 361LXB-30 | 4500 | 3000 3000 | 0.50 | 3.5 3.5 | ||
| 208 | 361LSB-50 361LXB-50 | 8000 | 5000 5000 | 1.00 | 1.7 1.7 | ||
| 312 | 361LSC-65 | 12000 | 6500 | 0.60 | 2.8 | ||
| 325 | 361LSC-99 | 25000 | 10000 | 1.0 | 2.0 | ||
The performance index:
Project | Index value | ||
The basic error ％ | With3610L±2.5; Belt positioner ±1.0 | ||
Differential% | With 361L ±2.0; With PSL±1.0 | ||
Dead% | 1.0 | ||
| Always point deviation% | Electric drive | The starting point | ±2.5 |
| Finish | ±2.5 | ||
| Power off | The starting point | ±2.5 | |
| Finish | ±2.5 | ||
Adjustable range | 50:1 | ||
| Rated stroke deviation% | 2.5 | ||
Discharge amount of L/H | In accordance with rated capacity of JB/T7387-94 IV less than the valve x 10-4 | ||
To allow 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 | |
Actuator | Allowable voltage difference△P(MPa) | ||||||||||||||||
| With PSL | PSL202 | 6.4 | 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 | ||||||||||||
| With 361L | 361LSA-20 | 6.4 | 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 | ||||||||||||
