How much is the pneumatic emergency shut-off valve

　　Shanghai electric emergency shut-off valve

Model: BQ941F-25P

　　Shanghai electric emergency shut-off valveIntroduction:

Electric control valve, explosion-proof electric cut-off valveElectric emergency shut-off valveThe overall design of the stainless steel silica sol high platform floating ball valve is matched with an explosion-proof electric actuator. It is driven by a 380V/220V/110V AC power supply and controlled by a 4-20mA current signal or a 0-10V DC voltage signal, which can move the valve to the desired position and achieve its automatic control.

Stainless steel silica sol high platform floating ball valve belongs to a category of ball valves, with the main difference being that it has an additional platform compared to flange ball valves. The main function of the platform is to install automatic control devices such as electric and pneumatic ones. The platform is easy to disassemble and assemble. It has some inherent structural characteristics, such as frictionless switches, durable seals, and low opening and closing torque. This can reduce the specifications of the accompanying actuator. Equipped with a multi turn electric actuator, it can achieve adjustment and tight cutting of the medium. Widely applicable to working conditions such as petrochemicals and ammonia that require strict cut-off.

Stainless steel silica sol high platform floating ball valve parameters:

Nominal pressure (PN): 1.6-2.5-4.0

Shell test pressure: 2.4-3.8-6.0

Sealing test (liquid): 1.8-25.8-4.4

Applicable media: ammonia, gas

Applicable temperature -40 ℃/+120 ℃

Valve body, sphere, valve stem: 304, 304L, 316, 316L/ZG1Cr18Ni9Ti

Sealing ring: polytetrafluoroethylene

PTFE sealing surface material (-29 ℃≤ t ≤ 180 ℃);

Polystyrene sealing surface material (-29 ℃≤ t ≤ 250 ℃);

Alloy steel sealing material (-29 ℃≤ t ≤ 650 ℃)

Studs and nuts: stainless steel

Specification: DN15-200

Design standards:

Design and manufacturing standards in accordance with GB12237;

The structural length shall be in accordance with GB12221;

The size of the connection end shall be in accordance with JB/T79, GB9113, HG20592;

Inspection and testing shall be conducted in accordance with JB/T 9092 and GB/T13927;

Explosion proof electric actuators have summarized various shortcomings of electric actuators. After improvement, many key components are made of imported parts from Japan, with compact structure, reliable quality, and excellent performance. 1. Shell - Due to the use of high-quality aluminum alloy, it is lightweight. And the inner and outer surfaces are treated with anodizing, and the outer surface is coated with polyester powder, which has strong corrosion resistance. 2. Motor - Adopting SPG squirrel cage motor with large output torque and built-in thermal protection switch for temperature control, it can prevent damage to the motor. 3. Manual structure - When not powered, manually operate by pulling the clutch handle. When powered on, the clutch automatically resets. 4. Position indicator - The indicator is installed on the central axis and can observe the position of the valve. And there are indicator lights (SLU) available for selection. 5. Drying machine - used to control temperature, prevent condensation of moisture inside the actuator, and keep the internal electrical components dry. 6. Limit switch - controlled by a cam mechanism, a simple adjustment mechanism can accurately and conveniently set the position. 7. Torque switch (except HQ-008) - can provide overload protection to prevent damage to the motor. (Set before leaving the factory, please do not change the settings casually). 8. Self locking - With self-locking function, it prevents reverse rotation and ensures stable and reliable rotating parts. 9. Installation - The bottom installation dimensions comply with the ISO5211 standard, and the drive shaft sleeve can be removed for processing as needed, with strong adaptability. It can be installed vertically or horizontally. 10. Wiring terminals - The wiring layout is compact and reasonable, with a diameter of 2.5mm, high pressure, and firm connection. 11. Worm gear - adopts a concave wheel design, with a large contact surface with the worm, a large transmission torque, smooth and wear-resistant, and a long service life.

12. PCU board - compact and reasonable structure, the PCU board is built into the chassis.

Technical parameters of explosion-proof electric actuator:

Waterproof rating of the shell: IP67, NEMA4 and 6

Motor power supply: 110/220V AC 1PH, 380/440V AC 3PH, 50/60Hz, ± 10%

Control power supply: 110/220V AC 1PH, 50/60 Hz, ± 10%

Load rate (switch): S2 30%

Motor: squirrel cage asynchronous motor

Limit switch: 2X on/off, SPDT，250V AC 10A

Auxiliary limit switch: 2 X on/off, SPDT, 250V AC 10A (except HQ-008)

Torque switch: on/off, SPDT, 250V AC 10A (except HQ-008)

Travel: 90 °± 10 ° (0 °~110 °)

Stall protection/operating temperature: built-in thermal protection, on 120 ℃± 5 ℃/off 90 ℃± 15 ℃

Indicator: Continuous position indication

Manual operation: mechanical clutch mechanism

Self locking device: Worm gear, worm mechanism provides self-locking

Mechanical limit: 2 external adjustment bolts

Drying machine: 7-10W (110/220V AC) anti condensation

Wiring holes: 2 PF 3/4 "

Environmental temperature: -20 ℃~+70 ℃

Lubrication: Aluminum based grease (EP type)

Materials: Steel, Aluminum Alloy, Aluminum Bronze, Polycarbonate

Environmental humidity: maximum 90% RH (non condensing)

Seismic performance: X Y Z 10g, 0.2-34 Hz, 30 minutes

External coating: dry powder, epoxy polyester

Advantages of explosion-proof electric actuators:

Explosion proof electric actuators are unique in valve automation manufacturing both domestically and internationally due to their innovative design, excellent technical processes, high-quality imported components, and rigorous quality testing. And explosion-proof electric actuators have pushed the precision, digitization, and intelligence of valve electric devices to a new stage, becoming the top choice in the automation control industry.

Yonglong Valve insists on using imported micro switches (Omron) and bearings (NSK) from the country of origin for each actuator. Our casing is produced using CNC machining centers, and all components are machined by CNC machine tools to ensure machining accuracy, assembly accuracy, greatly reduce friction, and increase transmission efficiency. This allows us to launch a fast switch type: 2.8 seconds, 300Nm. This product is currently the smallest electric actuator in terms of volume, output torque, and speed in China.

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