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Electric explosion-proof regulating valve
is suitable for most applications in process control technology. The electric explosion-proof regulating valve is particularly suitable for applications with certain requirements. Due to its wide adjustment range, different curved surfaces can be selected. Spool, and its highly sealed characteristics in off state. The electric explosion-proof control valve belongs to the top-oriented control valve and is equipped with a 3810 series electronic Electric Actuator. There is a servo amplifier in the electric actuator. No servo amplifier is required. Input control signals (4 to 20mADCor1 to 5VDC) and single-phase power supply are available. Can control the operation, to achieve the pressure, flow, temperature, liquid level and other parameters of the adjustment. Electric explosion-proof control valve has the characteristics of small size, light weight, simple connection, high adjustment accuracy, electric explosion-proof control valve, explosion-proof electric valve, widely used in electric power, petroleum, chemical industry, metallurgy, environmental protection, light industry, teaching and Scientific equipment and other industries in the industrial process automatic control system.
| Nominal diameter(DN) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
| Valve seat diameter(dn) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
Rated flow coefficient(KV) |
single seat | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 630 | 875 | 1250 |
| sleeve | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 155 | 250 | 370 | 580 | 900 | 1300 | |
Allowable pressure difference(MPa) |
single seat | 3.8 | 3.2 | 3.0 | 2.0 | 1.8 | 1.5 | 1.4 | 1.0 | 0.7 | 0.6 | 0.5 | 0.3 | 0.1 |
| sleeve | 6.4 | 6.4 | 5.2 | 5.2 | 4.6 | 4.6 | 3.7 | 3.7 | 3.5 | 3.1 | 3.1 | 2.6 | 2.2 | |
| Nominal pressure(MPa) | 1.6、2.5、4.0、6.4、10.0 | |||||||||||||
| Rated route(mm) | 16 | 25 | 40 | 60 | 100 | |||||||||
| Valve cover type | High temperature type(+250～+450℃) | |||||||||||||
| Capping type | Bolt compression type | |||||||||||||
| Seal packing | V type PTFE packing、V type flexible graphite filler | |||||||||||||
| Valve core type | Single seat, sleeve type | |||||||||||||
| Flow characteristics | percentage、straight linetype | |||||||||||||
| Configure Actuator series | 3810series、PSL series etc. Electric Actuator(Customers can also specify brands) | |||||||||||||
| Actuator parameters | voltage：220V、input signal：4-20mAor1-5V·DC、output signal：4-20mA·DC | |||||||||||||
Protection level：Equivalent toIP65、Separate explosion levels： ExdⅡBT4(ExdⅡBT6Special custom)、Hand operation function：handle |
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| environment temperature：-25～+70℃、environment humidity：≤95% | ||||||||||||||
| item | standard | ||
| tolerance% | with3810L±2.5； withPSL±1.0 | ||
| difference% | with381L ±2.0； withPSL±1.0 | ||
| dead zone% | 1.0 | ||
tolerance between start point and end point% |
Electric open | start point±2.5 | end point±2.5 |
| start point±2.5 | end point±2.5 | ||
| Electric close | start point | ±2.5 | |
| end point | ±2.5 | ||
| Rated route tolerance % | ≤2.5 | ||
| Leakage L/h | 0.01%×Valve rated capacity | ||
| Adjustable range R | 30：1 | ||
