D671X type Pneumatic Wafer Butterfly Valve

Pneumatic wafer butterfly valve consists of rubber seal, valve plate (made of carbon steel or stainless steel) and valve stem. Applicable temperature is 80~120℃. It is widely utilized in food, pharmacy, chemical industry, petroleum and other industries to regulate flow or closure medium.

一.Product Introduction
Pneumatic wafer butterfly valve consists of rubber seal, valve plate (made of carbon steel or stainless steel) and valve stem. Applicable temperature is 80~120℃. It is widely utilized in food, pharmacy, chemical industry, petroleum and other industries to regulate flow or closure medium.
二.Product Features
1. Novel design, unique structure, light weight, rapid open and close

2.Small torque, convenient operation

3.Can be install in any position and it is convenient maintain.

4.Seal can be replaced and realize bidirectional sealing and zero leakage.

5.Aging resistance, corrosion resistance and long service life.

三.Technical data

Nominal diameter  DN(mm) 50~2000
Nominal pressure PN(MPa) 0.6 1.0 1.6
Test pressure Shell test 0.9 1.5 2.4
  Seal  test 0.66 1.1 1.76
  Air test 0.6 0.6 0.6
Applicable medium Air, water, sewage, vapor, gas, oil, etc
Driving mode Manual, worm gear, pneumatic, electric
Components  Materials 
Valve body Spheroidal graphite steel, cast steel, alloy steel, stainless steel
disc Grey cast iron, spheroidal graphite steel, cast steel, stainless steel, special materials
Seal ring Rubber, PTFE
Valve stem 2Cr13, stainless steel
Packing O-ring, flexible graphite

Seal material selection and applicable temperature

Materials  Chloroprene rubber  Nitril butadiene rubber Ethylene propylene rubber Teflon  Silicon rubber Fluorine rubber Crude rubber Nylon 
Abbreviation  CR NBR EPDM PTFE SI VITON NR PA
Model  X or J XA or JA XB or JB F, XC or JC XD or JD XE or JE X1 N
Maximum temperature 82℃ 93℃ 150℃ 232℃ 250℃ 204℃ 85℃ 93℃
Minimum temperature -40℃ -40℃ -40℃ -268℃ -70℃ -23℃ -20℃ -73℃
Applicable temperature 0~+80℃ -20~+82℃ -40~+125℃ -30~+150℃ -70~+150℃ -23~+150℃ -20~+85℃ -30~+93℃

四.The main shape and connection size

Nominal diameter Face to Face Dimension 

(standard value)

Outline dimension
(reference value)
Connection dimension (standard value)
0.6MPa 1.0MPa 1.6MPa
Mm  Inch  L H H0 A B D0 n-d D0 n-d D0 n-d
50 2 43 63 315 180 65 110 4-14 125 4-18 125 4-18
65 21/2 46 70 330 180 65 130 4-14 145 4-18 145 4-18
80 3 46 83 390 245 72 150 4-18 160 8-18 160 8-18
100 4 52 105 431 240 72 170 4-18 180 8-18 180 8-18
125 5 56 115 455 240 72 200 8-18 210 8-18 210 8-18
150 6 56 137 626 350 93 225 8-18 240 8-22 240 8-22
200 8 60 164 720 350 93 280 8-18 295 8-22 295 12-22
250 10 68 206 800 550 350 335 12-18 350 12-22 355 12-26
300 12 78 230 860 600 350 395 12-22 400 12-22 410 12-26
350 14 78 248 883 600 350 445 12-22 460 16-22 470 16-26
400 16 102 289 972 600 350 495 16-22 515 16-26 525 16-30
450 18 114 320 1043 750 380 550 16-22 565 20-26 585 20-30
500 20 127 343 1098 750 380 600 20-22 620 20-26 650 20-33
600 24 154 413 1236 750 380 705 20-26 725 20-30 770 20-36
700 28 165 478 1431 750 380 810 24-26 840 24-30 840 24-36
800 32 190 525 1488 750 380 920 24-30 950 24-33 950 24-39
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About Us

Founded in 2016, Shanghai Wangye Valve Manufacturing Co., Ltd. is a professional industrial fluid control manufacturer with nearly a decade of experience, integrating R&D, intelligent production, sales, and customized solutions. Leveraging Shanghai’s advanced manufacturing advantages, we’ve built a reliable brand across petrochemicals, power, metallurgy, water treatment, and new energy industries, offering gate/ball/butterfly valves and tailored solutions for harsh conditions. Backed by advanced equipment, full-process quality control, and ISO certifications, we adhere to “Integrity, Quality, Customer Focus, Innovation” and provide comprehensive services, striving for long-term cooperation and continuous technological upgrading.

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Why Choose Us

Talent and Efficient Team

WYE always insists that employees are the most valuable asset of the enterprise and the future of WYE; Adhere to prioritizing talent selection, education, and utilization in the development of enterprises; introducing talent as the highest return investment behavior. We regard talent as the primary resource for effective management, and pursue a high degree of harmony and unity between employee personal development and enterprise development.We encourage you to have a special perspective, think independently, and be good at organizing resources from all parties. Always maintain a responsible attitude towards results and a positive team spirit that is willing to share in every task..

High End Processing Equipment Creating Excellent Product Quality

Advanced automated production equipment and sophisticated assembly line production demonstrate first-class quality.Technical experts directly participate in production to ensure the concealment and reliability of the product.The increasing awareness of high-quality products and the continuous supply of industrial products have made WYE constantly changing.No matter how the world changes, the persistent spirit of excellence among WTE people remains unchanged.

Warehouse Strength

In our facility, raw materials (including core components and packaging supplies) are strictly controlled via a real-time digital inventory system—tracking batches, shelf life, and storage conditions to boost traceability and cut waste. Semi-finished products, post-preliminary quality checks, are stored per strict industry standards: labeled with progress/inspection records to avoid cross-contamination and damage. Finished products are sorted into specialized warehouses by type, market, and delivery schedule, streamlining picking and reducing dispatch delays. This standardized process effectively boosts efficiency: cutting redundant steps by 30%, shortening fulfillment cycles by 20%, and minimizing inventory/shipment errors.

Customized Solutions & After-Sales Support

Tailored to the distinct demands of industries like petrochemicals, new energy, and metallurgy, WYE provides personalized industrial fluid control solutions—covering pre-project demand assessment, customized valve design (matching specific working conditions like pressure or medium type), and on-site technical consultation to align with clients’ operational scenarios. Additionally, we offer comprehensive after-sales support: including on-site installation guidance, regular equipment maintenance inspections, and 24/7 responsive fault troubleshooting, which ensures the stable operation of clients’ systems and strengthens long-term cooperative partnerships.

Our Services

Our company is a one-stop solution for all valve-related needs, offering customization to tailor valves to unique specifications, professional installation & commissioning for seamless integration and optimal performance, maintenance & repair to keep valves in top condition and extend their lifespan, and technical support & consultation for expert advice on selection, optimization, and troubleshooting throughout every project stage.

Valve Customization Service

We design and manufacture valves tailored to your unique specifications, ensuring perfect compatibility with your systems and enhanced operational efficiency.

Valve Installation & Commissioning

Our expert team provides professional installation and commissioning services, guaranteeing seamless integration and optimal performance of your valves from day one.

Valve Maintenance & Repair

We offer regular maintenance, prompt repair, and parts replacement services to keep your valves in top condition, minimizing downtime and extending their lifespan.

Technical Support & Consultation

Get expert advice on valve selection, system optimization, and troubleshooting. Our technical team is available to guide you through every stage of your valve-related projects.

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Our valves offer superior durability, precise control, and tailored solutions for your industrial, commercial, or residential needs. Don’t miss the opportunity to get reliable valve products and expert support.

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