Covna DN150 6 Inch Pn16 Triple Offset Metal Seat Double Flange Stainless Steel Pneumatic Actuated Butterfly Valve

• Media: Air, Gas, Oil, Liquid
• Structure: Butterfly
• Application: General
• Warranty: 1years
• End Connection: Triple Eccentric
• Port Size: DN150 Flanged Butterfly Valve
• Model NO.: HK55-D-F Butterfly Valve
• Material: Stainless Steel
• Air Supply Pressure: 2.5 to 8bar
• Pressure: 1.6MPa
• Customized Support: OEM
• Certification: RoHS,CE,ISO9001
• Type: Flanged Butterfly Valve
• Sealing Material: Metal Seat
• Acting Mode: Double Acting Pneumatic Actuator
• Power: Pneumatic
• Trademark: COVNA
• Origin: Guangdong, China
• Production Capacity: 10000 Set/Sets Per Month

Product Description

Products Description

Size Range	2"~28", DN50~DN700
Acting Mode	Double Acting, Spring Return (Single Acting)
Operating Pressure	1.6MPa
Air Supply Pressure	2.5 to 8 bar
Angle of Rotation	90° ±4°
Actuation Time	1~2 seconds at 8.0 Bar Air Pressure
Body Material	SS304, SS316, SS316L
Sealing Material	Metal Seal
Number of Ways	2 Way
End Connection	Flange
Applicable Media	Control of Water, Air, Gas, Oil, Liquid
Optional Accessories	Namur Solenoid Valve, Limit Switch, F.R.L, Position Indicator, Manual Device
Application	Food & Beverage, Water & Wastewater, Ultra Pure Water, Desalination, Chemical, Textile, Pharmaceutical, Pulp & Paper

Wafer or Lug Body Styles

One-piece wafer body style or full lug style for dead end service. Both body styles offer bidirectional sealing as standard in conformance with full ASME class 150 and class 300 rating.

Wide Variety Of Disc Material Choices 

Precision machined and hand polished disc to provide a minimum torque and longer seat life.

Actuator Mounting Flange

The top flange is drilled as per EN ISO 5211 to accommodate direct mounting of a wide range of actuators.

Wide Choice Of Seating Materials

Unique torque and groove seat design to body retention. Providing complete isolation of flowing media from the body and making field replacement fast and simple. The seat features a molded O-ring which eliminates the use of flange gaskets. The seat is designed to seal with slip-on or weld-neck flanges.

Triple Offset Metal Seated is Available

Triple offset metal seated butterfly valves are widely used in plants and high pressure and high temperature piping system. The metal seat shall be consisted of laminated seat or solid seat.

Moulding and Modification Services 

We can customize an actuator or a valve for you based on your own custom specifications.

 

 

Optional Electric Actuated and Pneumatic Actuated

 

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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.