| Body Material | Valve Structure | Connection Standard | Action | Action Material | Optional Equipment | Other Functions |
|---|---|---|---|---|---|---|
| FRPP | Butterfly valve | HG | Double Acting | Aluminum alloy | Limit Switch | Anti-Explosion |
| PPH | Eccentric Butterfly Valve | DIN | Single Acting | Stainless steel | Speed Controller | — |
| CPVC | — | ANSI | — | Plastic | Solenoid valve | — |
| UPVC | — | JIS | — | — | Filter Regulator | — |
| PVDF | — | — | — | — | — | — |
| DN (mm) | D1 | D2 (GB) | D2 (JIS) | D2 (ANSI) | D3 (Inner Dia) | L | H | n-Φ (GB) | n-Φ (JIS) | n-Φ (ANSI) |
|---|---|---|---|---|---|---|---|---|---|---|
| 32 | 140 | 100 | 100 | 3.45 | 35 | 35 | 270 | 4-Φ17×25 | 4-Φ19 | 4-Φ16 |
| 40 | 150 | 110 | 105 | 3.88 | 45 | 40 | 280 | 4-Φ19×25 | 4-Φ19×25 | 4-Φ19×25 |
| 50 | 160 | 125 | 120 | 4.74 | 51 | 42 | 300 | 4-Φ19×26.5 | 4-Φ19×26.5 | 4-Φ19×26.5 |
| 65 | 180 | 145 | 140 | 5.49 | 66 | 47 | 310 | 4-Φ19×26.5 | 4-Φ19×26.5 | 4-Φ19×26.5 |
| 80 | 200 | 160 | 150 | 6 | 79 | 45 | 400 | 8-Φ19×25 | 8-Φ19×24 | 4-Φ19×25 |
| 100 | 220 | 180 | 175 | 7.5 | 98.5 | 55 | 410 | 8-Φ19×32 | 8-Φ19×32 | 8-Φ19×32 |
| 125 | 250 | 210 | 210 | 8.5 | 125 | 65 | 500 | 8-Φ23×33 | 8-Φ33×33 | 8-Φ33×33 |
| 150 | 290 | 240 | 240 | 9.51 | 148 | 75 | 530 | 8-Φ23×34 | 8-Φ23×34 | 8-Φ22×34 |
| 200 | 340 | 295 | 290 | 11.75 | 201 | 85 | 600 | 8-Φ23×33.5 | 12-Φ23×27 | 8-Φ23×33.5 |
| 250 | 406 | 350 | 355 | 14.25 | 245.5 | 110 | 650 | 12-Φ23×32.5 | 12-Φ25×32.5 | 12-Φ25×32.5 |
| 300 | 483 | 400 | 400 | 17 | 291.5 | 115 | 750 | 12-Φ23×42.5 | 16-Φ25 | 12-Φ26×42.5 |
| 350 | 533 | 460 | 445 | 18.78 | 340 | 127 | 850 | 16-Φ23×25 | 16-Φ25 | 16-Φ30×32 |
| 400 | 597 | 515 | 510 | 21.26 | 399 | 140 | 950 | 16-Φ27×43 | 16-Φ27 | 16-Φ30×43 |
| 450 | 635 | 565 | 565 | 22.76 | 446 | 150 | 1050 | 20-Φ26×28.5 | 20-Φ26×28.5 | 16-Φ32×34.5 |
| 500 | 700 | 620 | 620 | 25 | 494 | 150 | 1140 | 20-Φ26×44 | 20-Φ26×44 | 20-Φ32×44 |
| 600 | 815 | 725 | 730 | 29.53 | 570 | 170 | 1290 | 20-Φ35×47.5 | 24-Φ33 | 20-Φ35×47.5 |
| 700 | 928 | 840 | 840 | 34.02 | 670 | 185 | 1530 | 24-Φ31×44 | 24-Φ33 | 24-Φ35 |
| 800 | 1060 | 950 | 950 | 38.5 | 755 | 220 | 1690 | 24-Φ41×60 | 28-Φ33×38 | 24-Φ41×60 |
| 1000 | 1230 | 1160 | 1160 | 46.26 | 935 | 236 | 1800 | 28-Φ36×52 | 28-Φ39 | 32-Φ41 |
Step 1: Order and Design
Confirm the specifications, materials (e.g., PVC, CPVC, PP), and sealing type of the pneumatic butterfly valve based on the customer’s operating conditions (pressure, temperature, medium); complete the structural design, select the pneumatic actuator, and finalize the drawings.
Step 2: Raw Material Preparation & Molding
Select high-quality plastic raw materials and use injection molding or compression molding processes to form key components such as the valve body and disc; ensure dimensional stability, freedom from porosity, and absence of deformation in all parts of the pneumatic butterfly valve.
Step 3: Machining
Perform precision machining on the molded components, including turning of sealing surfaces, machining of shaft bores, and finishing of mating surfaces; ensure the sealing performance and assembly accuracy of the pneumatic butterfly valve.
Step 4: Assembly
Assemble the valve body, disc, stem, and seals, and install the pneumatic actuator; calibrate the opening and closing stroke to ensure the pneumatic butterfly valve operates smoothly and opens and closes seamlessly.
Step 5: Testing & Quality Assurance
Conduct sealing tests, air tightness tests, and operational tests on the pneumatic butterfly valve; inspect opening torque and response time to ensure compliance with relevant standards (such as ISO/DIN).
Step 6: Finishing, Packaging and Shipment
Clean and protect the finished products, and label them with model numbers and batch numbers; use shock-resistant packaging to ensure the products remain undamaged during transport and are delivered on time.
Widely used in piping systems across industries such as chemicals, water treatment, petroleum, food, pharmaceuticals, and environmental protection, these valves are primarily used to control the shutoff, diversion, merging, or proportional regulation of various corrosive and non-corrosive gases, liquids, and powdered media.
These valves are widely used in:
Oil and Gas
Chemical Processing
Power Plants
Water Treatment
Metallurgy and Mining
Agriculture and Irrigation
Superior Quality
Our valves are produced from high-grade materials and subjected to strict quality inspections to guarantee dependable performance in challenging industrial environments.
Advanced Technology
With cutting-edge CNC machining systems and high-precision manufacturing equipment, we ensure valves are made with outstanding accuracy and uniformity.
Competitive Pricing
By streamlining production processes and sourcing materials in bulk, we provide premium-quality valves at competitive prices while maintaining excellent standards.
Expert Support
Our skilled technical team offers full support from product selection through after-sales service, helping ensure the best valve performance for your application.
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