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China Hand Lever Wafer Butterfly Valve Suppliers - High-Quality Factory Direct Products for General Purpose Applications
✦ Features
✔Bubble-tight shut-off at full pressure rating
✔The seat and the disc are the only two valve parts in contact with the medium.
✔Superior design for abrasive and erosive media.
✔Replaceable cartridge seat — The replaceable seat consists of a reinforced back-up ring, on which the elastomer seat material is vulcanized. When mounting the valve between the pipe flanges this stable seat cannot be deformed or displaced. The cartridge design also prevents deformation when the valve is cycled, such as stretching and bending of the elastomer in front of the moving disc.
✔Large number of material combinations available.
✔Standardized actuator flange for easy operator interchangeability.
✔Top bushing absorbs side thrust loads.
✔Hub seal provided by preloaded contact between flatted seat surface and disc hub area for positive sealing at all disc positions.
✔One-piece wafer thin disc stem gives the very minimum obstruction to flow.
✔Field replaceable seat isolates the body and stem from the flow.
✔Molded-in O-rings provides flange sealing and eliminates need for gaskets.
✔Universal Mounting Flange — The cast-in actuator flange is universally designed in accordance with ISO 5211 standard dimensions. The mounting flange can accommodate all types of operators such as: 10-position handle kits, gear operators, electric actuators, and pneumatic actuators.
✦ Materials Of Main Parts
| ITEM | PART NAME | MATERIAL |
| 1 | Body Material | Cast iron / Ductile iron / CF8 / CF8M / WCB / Duplex / Al-Bronze / Aluminium Etc. |
| 2 | Seat Material | EPDM / NBR / Buna / Viton / PTFE / Hypalon / Silicone / Neoprene Etc. |
| 3 | Stem Material | 45# / SS420 / SS410 / SS416 / SS316 / SS304 / Duplex stainless steel Etc. |
| 4 | Disc Material | DI+Ni, CF8, CF8M, CF3M, Duplex SS, Al-Bronze, DI+Nylon, DI+PTFE, DI Epoxy Etc. |
| 5 | Hand Lever | Malleable iron / Stamping steel / Aluminum / Stainless Steel |
| 6 | Bushing | PTFE / Bronze |
| 7 | O Ring | NBR / EPDM / VITON |
✦ Valve Standard
| Category | Details |
| Type | Wafer |
| Face to Face | API609, EN593, EN558-1 Series 20, DIN3202 K1, ISO5752 |
| Flange Drilling | EN1092 PN10 / PN16 / JIS / ANSI150 / AS Table D/E |
| Mounting Flange | ISO5211 |
| Pressure Rating | PN10 | PN16 | 150PSI | 200PSI | Class 150 |
| Application | HVAC, Water Supply & Sewage, Food & Beverage, Chemical/Petrochemical Processing, Power and Utilities, Paper and Pulp, Marine |
✦ Dimensions (mm)
Scroll horizontally to view full dimension table on smaller screens.
| SIZE | A | B | C | D | L | d0 | P | H | key bxl | UPPER FLANGE | ANSI 150 | DIN PN10/16 | |||||||
| in | DN | K | E | z-d | g | h | D1 | n-Ød1 | D1 | n-Ød1 | |||||||||
| 1 1/2 | 40 | 145 | 75 | 33 | 42.4 | 32 | 12.6 | - | - | 3X16 | 77 | 50 | 4-7 | 35 | 3 | 98.5 | 4-16 | 110 | 4-18 |
| 2 | 50 | 161 | 80 | 42 | 52.6 | 32 | 12.6 | 9 | 10 | 3X16 | 77 | 50 | 4-7 | 35 | 3 | 120.5 | 4-19 | 125 | 4-18 |
| 2 1/2 | 65 | 175 | 89 | 44.7 | 64.5 | 32 | 12.6 | 9 | 10 | 3X16 | 77 | 50 | 4-7 | 35 | 3 | 139.5 | 4-19 | 145 | 4-18 |
| 3 | 80 | 181 | 95 | 45.2 | 78.8 | 32 | 12.6 | 9 | 10 | 3X16 | 77 | 50 | 4-7 | 35 | 3 | 152.5 | 4-19 | 160 | 8-18 |
| 4 | 100 | 200 | 114 | 52.1 | 104 | 32 | 15.77 | 11 | 12 | 5X19 | 90 | 70 | 4-9 | 55 | 3 | 190.5 | 8-19 | 180 | 8-18 |
| 5 | 125 | 213 | 127 | 54.4 | 123.3 | 32 | 18.92 | 14 | 14 | 5X19 | 90 | 70 | 4-9 | 55 | 3 | 216 | 8-22 | 210 | 8-18 |
| 6 | 150 | 226 | 139 | 55.8 | 155.6 | 32 | 18.92 | 14 | 14 | 5X19 | 90 | 70 | 4-9 | 55 | 3 | 241.5 | 8-22 | 240 | 8-23 |
| 8 | 200 | 260 | 175 | 60.6 | 202.5 | 45 | 22.1 | 17 | 17 | 5X19 | 125 | 102 | 4-12 | 70 | 35 | 298.5 | 8-22 | 295 | 8/12-23 |
| 10 | 250 | 292 | 203 | 65.6 | 250.5 | 45 | 28.45 | 22 | 22 | 8X28 | 125 | 102 | 4-12 | 70 | 3.5 | 362 | 12-25 | 350/355 | 12-23/27 |
| 12 | 300 | 337 | 242 | 76.9 | 301.6 | 45 | 31.6 | 22 | 24 | 8X28 | 140 | 102 | 4-12 | 70 | 3.5 | 432 | 12-25 | 400/410 | 12-23/27 |
| 14 | 350 | 368 | 267 | 76.5 | 333.3 | 45 | 31.6 | 22 | 24 | 8X28 | 140 | 102 | 4-12 | 70 | 3.5 | 476 | 12-29 | 460/470 | 16-23/27 |
| 16 | 400 | 400 | 309 | 86.5 | 389.6 | 51/72 | 33.15/38 | 24 | 24 | 10X50 | 175 | 140 | 4-18 | 100 | 4 | 540 | 16-29 | 515/525 | 16-27/30 |
| 18 | 450 | 422 | 328 | 106 | 440.5 | 51/72 | 38/42.86 | 27 | 27 | 10X50 | 175 | 140 | 4-18 | 100 | 4 | 578 | 16-32 | 565/585 | 20-27/30 |
| 20 | 500 | 480 | 361 | 131.8 | 491.6 | 64/82 | 41.15/45.72 | 32 | 32 | 10X50 | 175 | 140 | 4-18 | 100 | 4 | 635 | 20-32 | 620/650 | 20-27/33 |
| 24 | 600 | 562 | 459 | 152 | 592.5 | 70/82 | 50.65/53.98 | 36 | 36 | 2-16X60 | 210 | 165 | 4-23 | 130 | 5 | 749.5 | 20-35 | 725/770 | 20-30/36 |
| 28 | 700 | 624 | 520 | 163 | 695 | 66/82 | 55/63.35 | - | - | 2-18X63 | 300 | 254 | 8-18 | 200 | 55 | 863.5 | 28-35 | 840 | 24-30/36 |
| 30 | 750 | 660 | 539 | 165 | 744.3 | 66/82 | 55/63.35 | - | - | 2-18X63 | 300 | 254 | 8-18 | 200 | 55 | 914.5 | 28-35 | - | - |
| 32 | 800 | 672 | 591 | 188 | 794.7 | 66/82 | 55/63.35 | - | - | 2-18X63 | 300 | 254 | 8-18 | 200 | 55 | 978 | 28-41 | 950 | 24-33/39 |
| 36 | 900 | 720 | 656 | 203 | 864.7 | 118 | 75 | - | - | 2-20X100 | 300 | 254 | 8-18 | 200 | 55 | 1086 | 32-41 | 1050 | 28-33/39 |
| 40 | 1000 | 800 | 721 | 216 | 965 | 142 | 85 | - | - | 2-20X100 | 300 | 254 | 8-18 | 200 | 55 | 1200 | 36-41 | 1160/1170 | 28-36/42 |
✦ More Details
✦ Company Strength
Since 2007, Tianjin Guoji Valve Co., Ltd. (TGV) has established itself as a trusted manufacturer and exporter of high-quality valves, fittings, and comprehensive flow control solutions. Our extensive product range covers ball valves, gate valves, globe valves, check valves, butterfly valves, expansion joints, strainers, actuators, flanges, and pipe fittings—making us a reliable one-stop partner for industries such as oil and gas, petrochemicals, HVAC, and waterworks. What sets us apart is our unwavering focus on customer satisfaction: we combine strict quality control, competitive pricing, prompt responsiveness, and on-time delivery to ensure every order exceeds expectations. Whether you need standard products or customized support for complex projects, our team is ready to deliver solutions tailored to your specifications. Contact us now with your inquiry—let us provide you with detailed quotations, technical support, and a partnership built on reliability and performance.
✦ Frequently Asked Questions
QWhat is a hand lever wafer butterfly valve and how does it work?
A hand lever wafer butterfly valve is a quarter-turn valve designed to regulate or shut off flow in a pipeline. It uses a disc (the butterfly) mounted on a stem that rotates 90° to open or close the flow path. The wafer-style body fits between two pipe flanges, making it compact and lightweight. The hand lever provides manual operation for easy on/off or throttling control.
QWhat seat materials are available and how do I choose the right one?
We offer a wide range of seat materials including EPDM, NBR (Buna), Viton, PTFE, Hypalon, Silicone, and Neoprene. The choice depends on the media and operating conditions: EPDM is ideal for water and mild chemicals; NBR suits oil and petroleum products; Viton is recommended for aggressive chemicals and high temperatures; PTFE is best for highly corrosive media. Please consult our team for a recommendation based on your specific application.
QWhat pressure ratings and standards does this butterfly valve comply with?
This wafer butterfly valve is rated for PN10, PN16, 150PSI, 200PSI, and Class 150 service. It complies with international standards including API609, EN593, EN558-1 Series 20, DIN3202 K1, and ISO5752 for face-to-face dimensions. Flange drilling conforms to EN1092 PN10/PN16, JIS, ANSI150, and AS Table D/E. The mounting flange meets ISO5211 requirements.
QCan the seat be replaced in the field, and why is this important?
Yes, the seat is fully field-replaceable. The cartridge-style seat design features a reinforced back-up ring with vulcanized elastomer, which prevents deformation or displacement during installation and operation. Field replaceability reduces downtime and maintenance costs significantly, as the seat can be swapped without removing the entire valve from the pipeline.
QWhat types of actuators are compatible with this valve?
The valve features a universal ISO5211 mounting flange that is compatible with all standard actuator types, including 10-position handle kits, gear operators, electric actuators, and pneumatic actuators. This standardized design allows for easy interchangeability and upgrades without modifying the valve body.
QWhat industries and applications is this valve suitable for?
This hand lever wafer butterfly valve is suitable for a broad range of industries and applications, including HVAC systems, water supply and sewage treatment, food and beverage processing, chemical and petrochemical plants, power generation and utilities, paper and pulp manufacturing, and marine applications. Its wide range of material options makes it adaptable to both clean and aggressive media environments.