COVNA Modulating 4 20mA Control Valve Cast Steel Flange Spring Returned Pneumatic Modulating Valve

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Price:$578.00 - $599.00

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Product Overview

Description



Product Description


 valve


Advantages:



  • MOQ: 1 set

  • 19 years of valve manufacturing experience

  • Strong inventory, part of commission returned for bulk delay

  • Product quality will be guaranteed for 1 year (12 Months)

  • OEM service to help customers to promote their brands

  • Offer various international standard, ANSI, JIS, DIN, etc

  • Custom complaints handed by one stop professional service.

  • Inquiry will be replied within 8 hours


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Size Range3/4"~12", DN20~300
Acting ModeMulti-Spring diaphragm type
Working Pressure1.6, 4.0, 6.4MPa
Air Supply Pressure0.14, 0.16, 0.28, 0.4MPa
Lifespan1,000,000 (1 Million) Times
Temperature -30°C~70°C
Body MaterialSS304, SS316, SS316L, WCB
Number of Ways2 Way
End ConnectionFlanged 
Applicable MediaControl of Water, Air, Gas, Oil, Liquid, Steam, etc
Optional AccessoriesNamur Solenoid Valve, Limit Switch, F.R.L, Position Indicator, Manual Device
ApplicationFood & Beverage, Water & Wastewater, Ultra Pure Water, Desalination, Chemical, Textile, Pharmaceutical, Pulp & Paper




All Accessories Can Be Order !


Click here to ask more info about the quote and the catalog.


 






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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.




0.0944 s.