Butterfly Valve (Wafer Type), PN 1.0 with Pneumatic Actuator
Butterfly Valve (Wafer Type), PN 1.0 with Pneumatic Actuator is designed for automated flow isolation and control in suitable industrial pipeline systems. The wafer-type construction allows installation between compatible flanges while maintaining a compact valve arrangement.
The double-acting pneumatic actuator provides controlled opening and closing of the valve. The actuator incorporates a position indicator and adjustable centre stopper for both open and closed positions.
The valve features an S.G. Iron body and stainless-steel disc accurately guided between two stems. The two-piece stem arrangement is supported through PTFE or bronze bushes, while the integrally moulded lining provides seating for the disc and sealing around the stem and flange connection.
Key Features
- Wafer-type butterfly valve construction
- PN 1.0 pressure rating
- Double-acting pneumatic actuator operation
- S.G. Iron body construction
- Stainless-steel CF8 disc
- Optional CF8M / S.S. 316 disc configuration
- Position indicator on actuator
- Adjustable centre stopper for open and closed positions
- Scotch Yoke actuator technology
- Two-piece stem construction
- EPDM and Nitrile lining options
- Optional Neoprene, Viton and Silicon lining configurations
- Designed according to IS 13095 / BS EN 593 (BS 5155)
- Suitable for sandwich installation between compatible flanges
- Available from 40 mm to 200 mm
Pneumatic Actuator Operation
The double-acting pneumatic actuator uses compressed air to operate the valve in both opening and closing directions. This provides automated valve operation for suitable industrial piping systems.
The actuator is equipped with a position indicator and adjustable centre stopper for both open and closed positions. This allows the operating position of the valve to be monitored and adjusted according to the required application.
Scotch Yoke Technology
The actuator uses Scotch Yoke technology. This mechanism is designed to provide suitable torque characteristics during valve operation, including higher torque at the end positions.
The actuator configuration does not use a rack-and-pinion arrangement. The specified mechanism is intended for smooth operation and suitable service life under applicable operating conditions.
Wafer Type Construction
The wafer construction allows the valve to be installed between compatible pipeline flanges. This compact arrangement can be useful where installation space and efficient pipeline configuration are important.
Before installation, customers should verify the pipeline diameter, flange standard, pressure class, bolt arrangement and available installation space.
Stainless Steel Disc
The valve uses a stainless-steel disc that is accurately guided between the upper and lower stems. The specified disc material is stainless steel according to IS 3444 Grade 1 / ASTM A351 Grade CF8.
CF8M / S.S. 316 disc configurations can also be provided where required, subject to the applicable product configuration and service requirements.
Body and Lining
The valve body is specified in S.G. Iron according to IS 1865 Grade 400/15. The integrally moulded rubber lining provides the seating surface for the disc and contributes to sealing around the stem and matching pipe flanges.
EPDM and Nitrile are specified lining options. Neoprene, Viton and Silicon lining configurations may also be available according to application requirements.
Lining selection should be based on the operating medium, chemical compatibility, pressure and temperature conditions.
Pressure and Temperature Rating
The valve has a PN 1.0 pressure rating with a maximum working pressure of 1.0 MPa.
The specified hydrostatic shell test pressure is 1.5 MPa, while the seat hydrostatic test pressure is 1.1 MPa.
The stated maximum working temperature is 90°C. Actual operating conditions should remain within the applicable product specifications.
Available Sizes
This pneumatic wafer butterfly valve is available in the following nominal sizes:
- 40 mm / 1½ inch
- 50 mm / 2 inch
- 65 mm / 2½ inch
- 80 mm / 3 inch
- 100 mm / 4 inch
- 150 mm / 6 inch
- 200 mm / 8 inch
The required size should be selected according to the pipeline diameter and complete installation requirements.
Dimensions
| Size | A ±1.5 | ØB | C Approx. | D Approx. | E Approx. |
|---|---|---|---|---|---|
| 40 mm / 1½ inch | 33 mm | 40.6 mm | 57 mm | 223 mm | 185 mm |
| 50 mm / 2 inch | 43 mm | 52.4 mm | 73 mm | 235 mm | 185 mm |
| 65 mm / 2½ inch | 46 mm | 67 mm | 80 mm | 250 mm | 185 mm |
| 80 mm / 3 inch | 46 mm | 81.3 mm | 88 mm | 258 mm | 185 mm |
| 100 mm / 4 inch | 52 mm | 101 mm | 110 mm | 306 mm | 250 mm |
| 150 mm / 6 inch | 56 mm | 151 mm | 151 mm | 340 mm | 250 mm |
| 200 mm / 8 inch | 60 mm | 201.6 mm | 180 mm | 445 mm | 350 mm |
Dimensions marked approximately are subject to approximately ±10 mm tolerance.
Flange Compatibility
The wafer configuration is specified for sandwich installation between compatible flanges. The listed compatible flange arrangements include BS 10 Tables D, E, F and H, DIN, PN 10, PN 16, PN 25, PN 40, ASA 150, ASA 300, IS 778, IS 6392 Table 17 and IS 1538.
Flange dimensions, pressure class and bolt arrangements should always be checked before installation.
Suitable Media
The specified valve configuration is suitable for applicable systems handling steam, water, oil, air and gases.
- Steam
- Water
- Oil
- Air
- Gases
The final valve and lining selection should be based on the actual operating medium and service conditions.
Industrial Applications
This pneumatic butterfly valve can be considered for suitable industrial applications where automated flow isolation or control is required.
- Industrial water pipelines
- Process piping systems
- Water distribution systems
- Oil handling systems
- Steam pipelines
- Compressed air systems
- Gas pipeline systems
- Utility piping
- Industrial plants
- Infrastructure projects
- Automated flow-control systems
Industrial Valve Supplier in Surat
Allarakhu & Sons supplies industrial valves and piping products from Surat, Gujarat, for industrial and commercial requirements.
Our industrial supply coverage includes Surat GIDC, Sachin GIDC, Pandesara, Udhna, Hazira, Palsana and Kadodara, along with Ankleshwar GIDC, Bharuch GIDC and Vapi GIDC.
Customers can contact Allarakhu & Sons for product availability, technical requirements, bulk quantities and project-based valve enquiries.
Industrial Supply Across India
Allarakhu & Sons serves industrial product enquiries across Surat, Delhi, Mumbai, Bengaluru, Pune, Hyderabad, Ahmedabad, Jaipur, Chennai, Chandigarh, Lucknow, Goa, Indore, Nagpur, Dehradun, Kochi, Shimla, Srinagar, Noida and Gurugram.
Industrial customers throughout India can contact Allarakhu & Sons for pneumatic valve requirements, bulk orders and project supply.
How to Select a Pneumatic Butterfly Valve
Before selecting a pneumatic butterfly valve, consider the pipeline diameter, operating pressure, operating temperature, pipeline medium, flange standard, disc material, lining material and pneumatic operating requirements.
For automated systems, customers should also confirm the required actuator arrangement, available air supply and required operating configuration.
Providing complete application information helps ensure that the selected valve configuration is suitable for the intended pipeline system.
Benefits of Pneumatic Operation
- Automated opening and closing
- Double-acting operation
- Position indication
- Adjustable open and closed position stops
- Suitable for automated industrial systems
- Compact wafer-type valve construction
- Multiple lining options
- Stainless-steel disc construction
Solenoid Device and Limit Switch Options
The valve configuration can also be supplied with a solenoid device and limit switch or position indicator according to requirement, subject to the applicable product configuration.
Customers requiring automated control accessories should mention these requirements when requesting a quotation.
Product Enquiry and Bulk Orders
Allarakhu & Sons accepts enquiries for individual valve requirements, bulk quantities and industrial projects.
For a quotation, provide the required valve size, quantity, application, pipeline medium, operating pressure, operating temperature and delivery location.
Frequently Asked Questions
What is a pneumatic butterfly valve?
A pneumatic butterfly valve uses a pneumatic actuator to open and close the valve. This allows automated operation in suitable industrial pipeline systems.
What type of pneumatic actuator is used?
The specified configuration uses a double-acting pneumatic actuator with a position indicator and adjustable centre stopper for open and closed positions.
What is the pressure rating?
The specified pressure rating is PN 1.0 with a maximum working pressure of 1.0 MPa.
What is the shell test pressure?
The specified hydrostatic shell test pressure is 1.5 MPa.
What is the seat test pressure?
The specified hydrostatic seat test pressure is 1.1 MPa.
What is the maximum working temperature?
The stated maximum working temperature is 90°C.
What is the body material?
The valve body is constructed from S.G. Iron according to the specified material standard.
What is the disc material?
The standard disc specification is stainless steel according to IS 3444 Grade 1 / ASTM A351 Grade CF8. CF8M / S.S. 316 configurations may also be available according to requirement.
Which sizes are available?
The specified sizes range from 40 mm to 200 mm, including 40, 50, 65, 80, 100, 150 and 200 mm.
Which lining options are available?
EPDM and Nitrile are specified lining options. Neoprene, Viton and Silicon configurations may also be available according to application requirements.
Which media can this valve handle?
The specified suitable media include steam, water, oil, air and gases, subject to proper material, lining, pressure and temperature compatibility.
Can a solenoid device and limit switch be supplied?
Yes. The source specification states that solenoid device and limit switch options can be provided according to requirement.
Where can I get a pneumatic butterfly valve in Surat?
Allarakhu & Sons supplies industrial valves from Surat, Gujarat, and can assist with product availability, technical requirements, quantities and quotations.
Can I request a bulk quotation?
Yes. Customers can send the required valve size, quantity, application and delivery details to Allarakhu & Sons for bulk and project-based quotation requirements.
Get a WhatsApp Quotation
Need a quotation for Butterfly Valve (Wafer Type), PN 1.0 with Pneumatic Actuator? Send your requirement on WhatsApp and get product availability, pricing and bulk order assistance from Allarakhu & Sons.
WhatsApp us with:
- Required valve size
- Required quantity
- Pipeline application or media
- Operating pressure
- Operating temperature
- Delivery location
Request a Quote
Looking for Butterfly Valve (Wafer Type), PN 1.0 with Pneumatic Actuator for an industrial pipeline or automated flow-control system? Contact Allarakhu & Sons for product availability, pricing and bulk requirements.
Allarakhu & Sons
A-3, 7/4720, Badri Mansion,
Lal Darwaja, Station Road,
Surat – 395003, Gujarat, India
Mobile: 9825178797
