COVNA QT серия взрывозащищенный Электрический привод электрический клапан производители для газовой промышленности сжиженного нефтяного газа

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Product Description




Covna Qt Series Explosion Proof Electric Actuator Electric Valve Actuator
Manufacturers For Gas Industry Lpg Industry


Name 
COVNA QT Series Explosion Proof Electric Actuator
Keyword 
Electric Valve Actuator
Feature 
Outdoor Protection Class IP65
Model
QT Series


has a good sealing performance. Widely used in gas industry, LPG industry and so on. Using 110V/220V/380V AC as supply power. With manual override. Manual control in case of power failure.
Manufacturing explosion proof electric actuator with 270 degree rotation. For your oil & gas, or fire industry actuation solution.

Model

Supply Power:3PH: AC380V、AC415V、AC440V; ±10% 50/60Hz; 1PH: AC110V、AC220V、AC24V; ±10% 50/60Hz; DC: DC24V(±10%)
Basic Error:2.5%
Temperature:-20℃ to 60℃
Height Above Sea Level:≤1000m
Humidity:≤90% (25℃)




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FAQ




Pneumatic Valve FAQ

Q: What is the difference between Normally Open and Normally Closed valves?
A: As the name suggests, Normally Open valves allow air to pass when they are not energized (or actuated). Normally Closed valves must be actuated to allow air to pass.

Q: What is the life span of your pneumatic actuators?
A: We have passed 1 million times of product quality test, and obtained the certificate

Q: Does the air actuated valve have a manual override?
A: The air actuator does not have a manual override, but a manual override is provided with optional direct mount solenoid valves.

Q:How fast does an air actuated valve operate?
A: See product specifications. Generally, smaller valves less than 2 inch pipe size, cycle in about one second. Larger valves up to 6 inch pipe, cycle in about 1.5 seconds. A cycle is per 90° rotation

Q:Can I add a High Temperature kit to an existing Valworx air actuated
A:Yes, you would need to select a kit matching both the actuator and valve mounting patterns. See actuator accessories

Q:Can I mechanically adjust the flow rate of an air actuated ball valve?
A: No, but we do offer pneumatic positioners with 4-20mA or 3-15PSI inputs. Positioners allow user to adjust flow 0-100%.

Q:Can I use the air actuated ball valve outside?
A: Yes, air actuated valves are weatherproof per materials of construction. Do not exceed minimum and maximum temperature specifications.

Q:Do you have a way to confirm the air actuated valve is in the closed position? Open position?
A: Yes, we offer an optional valve monitor/limit switch box. Monitor contains (2) dry contact limit switches used to confirm open and closed position. There is also a highly visual valve position indicator.

Q:What is the maximum allowable fluid velocity?
A:Metal valves: 5 to 10 feet/second, closer to 5ft/sec is better PVC valves: < 5 feet/second

Q:Can you customize the color of the actuator?
A: We can customize different colors, LOGO and so on according to customer's requirements.


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