| Customization: | Available |
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| Media: | Gas |
| Driving Mode: | Manual |
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Product Overview
The D71X Stainless Steel Wafer Butterfly Valve is a centrically designed butterfly valve with wafer-type connections, engineered for quick opening/closing and flow regulation. Compact in structure and reliable in sealing, it is widely used in water treatment, chemical, food, pharmaceutical, and other industries, particularly suitable for corrosive media or high-purity applications.
Model Breakdown
- D: Butterfly Valve
- 7: Wafer Connection
- 1: Centric Design (Valve Disc Rotates on Central Axis)
- X: Rubber Seat Material (e.g., EPDM, NBR, etc.)
Structure & Materials
- Body/Disc/Stem: High-quality stainless steel (304, 316, or 316L for superior corrosion resistance).
- Seat Ring: Rubber material (default EPDM, temperature range: -20°C~120°C; optional NBR, Fluorocarbon, etc., for specific media).
- Actuation: Manual (lever or gear-operated) or customized pneumatic/electric actuators.
Working Principle
The valve disc rotates 90° via the stem to control fluid flow. The centric design ensures uniform contact between the disc and seat, enabling bidirectional sealing with minimal leakage under low-pressure differentials.
Key Feature
- Corrosion Resistance: Stainless steel + rubber sealing, ideal for acidic/alkaline environments.
- Low Flow Resistance: Full-bore design minimizes pressure loss.
- Lightweight & Durable: Compact structure, 1/3 the weight of gate valves, low maintenance.
- Rapid Operation: 90° rotation for quick manual or automated control.
- Temperature Range: -20°C~180°C (varies with seat material).
Applications
- Water Treatment: Water supply, drainage, firefighting, wastewater systems.
- Industrial Piping: Chemical, petroleum, gas, HVAC.
- Food & Pharma: Sanitary-grade options (polished surfaces), compliant with GMP standards.
Installation & Maintenance
- Installation: Requires matching flanges; tighten bolts symmetrically to avoid seat damage.
- Maintenance: Regularly inspect seat wear and stem lubrication; replace seals every 3-5 years (depending on service conditions).
Precautions
- Avoid overpressure or overtemperature to prevent seal failure.
- Install a filter if media contains hard particles.
- Rubber seats are incompatible with strong oxidizers (e.g., concentrated sulfuric acid); select appropriate materials for aggressive media.
Optional Configurations:
- Alternative seat materials (e.g., PTFE for high-temperature resistance).
- Extended stem (for insulated pipelines or special installations).
- Locking devices (to prevent accidental operation).
For detailed technical specifications or customization, please provide specific operational parameters. We will recommend the optimal solution for your needs.
| Nominal Diameter (DN) | DN50 ~ DN1200 (common range) |
| DN50 ~ DN1200 (common range) | PN6 ~ PN16 (up to PN25 available) |
| Applicable Media | Water, steam, oils, mildly corrosive liquids/gases |
| Connection Standards | GB, ANSI, JIS, DIN, etc. |
Q:How do you pack?
A:Plastic bags-------(Paper boxes)-------Cartons-------Plywood cases
Q:How long is the quality guarantee period?
A:We supply 6 to 12 months for quality guarantee according to customers' using frequency.
Q:How can you guarantee the quality of products?
A:First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every flange or fitting we sell is qualified.
Q:How can I check your factory situation while it's difficult for me to come to China.
A:We have photos and videos on our website, It shows every step of the manufacturing.
Alternatively, I can take videos or photos of our factory and send them to you.
Q:What is your lead time?
A:It's around 15 days normally. If we have the products in stock, it will be about 5days.
Q:Can you print our Logo on the valves/Fittings?
A:Yes, we can totally produce products according to your this kind special request, even manufacture it based on your drawing
Q:Are samples available to be sent with free?
A:It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.
Q:Do you have a minimum quantity of the products?
A:No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.
Q:Where are the main markets for your products?
A:We hope to make business with companies from all over the world. And for now, our flanges and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.
Q:Are you a factory or trading company?
A:We are a factory specialized in manufacturing flange and fitting over 10 years.
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