Electric Insulated Control Valve Product Overview
The BWZRHP electric insulated control valve from our company is suitable for applications requiring insulation. When the crystallization temperature of the process medium is lower than the ambient temperature, or when the fluid temperature decreases, causing an increase in viscosity or solidification of the fluid, a steam insulation jacket device is added to the valve body and upper bonnet to ensure the process medium meets the requirements of process control. The electric insulated control valve features a top-guided structure, compact design, and an S-shaped streamlined flow path, resulting in low pressure drop loss, high flow capacity, a wide adjustable range, and high accuracy in flow characteristics, complying with the IEC534-2-1976 standard. The electric insulated control valve is equipped with a 3810 series (PSL series) electronic electric actuator and a low flow resistance control valve body. The electric actuator is an integrated structure with a built-in servo amplifier. By inputting a control signal (4-20mA DC or 1-5V DC) and power supply, the valve opening can be controlled to regulate process parameters such as pressure, flow, level, and temperature. The leakage of the electric insulated control valve complies with the ANSI B16.104 standard.
Electric Insulated Control Valve Technical Parameters
| Nominal Diameter (DN) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 |
|---|
| Seat Diameter (dn) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 150 |
| Rated Flow Coefficient (KV) | Single Seat | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 440 |
| Cage | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 360 |
| Allowable Pressure Difference (MPa) | Single Seat | 3.8 | 3.2 | 3.0 | 2.0 | 1.8 | 1.5 | 1.4 | 1.0 | 0.6 |
| Cage | 6.4 | 6.4 | 5.2 | 5.2 | 4.6 | 4.6 | 3.7 | 3.7 | 3.1 |
| Nominal Pressure (MPa) | 1.6, 2.5, 4.0, 6.4 |
| Rated Travel (mm) | 16 | 25 | 40 | 60 |
| Bonnet Type | Standard Type (-17 to +250°C), High-Temperature Type (+250 to +450°C), Low-Temperature Type (-40 to -196°C), Bellows Seal Type (-40 to +350°C) |
| Gland Type | Bolted Gland |
| Trim Type | Single Seat, Cage |
| Flow Characteristic | Equal Percentage, Quick Opening |
| Actuator Type | 3810 Series, PSL Series Electric Actuators (Customer-specified brands are also acceptable) |
| Actuator Parameters | Power Supply Voltage: 220V, Input Signal: 4-20mA or 1-5V DC, Output Signal: 4-20mA DC |
| Protection Rating: IP65 Equivalent, Explosion-Proof Marking: ExdⅡBT4 (ExdⅡBT6 available upon special request), Manual Operation: Handwheel |
| Ambient Temperature: -25 to +70°C, Ambient Humidity: ≤95% |
Electric Insulated Control Valve Performance Indicators
| Item | Indicator Value |
|---|
| Basic Error % | With 3810L: ±2.5; With PSL: ±1.0 |
| Hysteresis % | With 3810L: ±2.0; With PSL: ±1.0 |
| Dead Band % | 1.0 |
| Start/End Point Deviation % | 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 Travel Deviation % | ≤2.5 |
| Leakage L/h | 0.01% × Valve Rated Capacity |
| Adjustable Range R | 30:1 |
Electric Insulated Control Valve Component Materials
| Valve Body | WCB | 304 | 316 | 316L |
|---|
| Gasket | PTFE/Graphite Gasket | PTFE/Graphite Gasket | PTFE/Graphite Gasket | PTFE/Graphite Gasket |
Seat/Cage | 304 | 304 | 316 | 316L |
| Trim | 304 | 304 | 316 | 316L |
| Guide Sleeve/Cap | 304 | 304 | 316 | 316L |
| Middle Gasket | PTFE/Graphite Gasket | PTFE/Graphite Gasket | PTFE/Graphite Gasket | PTFE/Graphite Gasket |
| Bonnet | WCB | 304 | 316 | 316L |
| Stem | 304 | 304 | 316 | 316L |
| Insulation Jacket | 25 | 304 | 316 | 316L |
| Packing | PTFE/Graphite | PTFE/Graphite | PTFE/Graphite | PTFE/Graphite |
| Bolts | 25 | Stainless Steel | Stainless Steel | Stainless Steel |
| Gland | WCB | 304 | 316 | 316L |
Electric Insulated Control Valve Product Selection
(1) Valve Body Parameters: Nominal diameter, working pressure, process medium, application, valve body material, and other related parameters.
(2) Actuator Parameters: Actuator type, control method, control signal (4-20mA, 1-5V), action type (air-to-open, air-to-close).
Please provide the above technical parameters in as much detail as possible to facilitate accurate product selection by our production and technical team. If you have any questions, please feel free to call us. We are committed to providing you with high-quality service!
Related Names: Electric Insulated Control Valve, Insulated Jacket Electric Control Valve
