| Customization: | Available |
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| Media: | Water |
| Driving Mode: | Pneumatic |
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Welcome to SYI Group
About Our wafer butterfly valve: 
Technical Specifications:
Design: EN593
Face to face: EN558-1
Flange drilling: EN1092
Upper flange connection: ISO 5211
Main Parts and Material:
| Item | Part Name | Material | Item | Part Name | Material |
| 1 | Body | CI+NBR/EPDM or DI+NBR/EPDM | 3 | Body | CI+NBR/EPDM or DI+NBR/EPDM |
| 2 | O-ring | Rubber | 4 | O-ring | Rubber |
Main Dimensions:
| DN(MM) | A | B | D | L1 |
| 50 | 83 | 120 | 165 | 111 |
| 65 | 93 | 130 | 185 | 115 |
| 80 | 100 | 145 | 200 | 117 |
| 100 | 114 | 155 | 220 | 130 |
| 125 | 125 | 170 | 250 | 143 |
| 150 | 143 | 190 | 285 | 143 |
Main Dimensions:
| DN(MM) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 500 | |
| L | 150 | 170 | 180 | 190 | 200 | 210 | 230 | 250 | 270 | 290 | 310 | 350 | |
| D | PN10 | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 395 | 445 | 505 | 565 | 670 |
| PN6 | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 | 460 | 520 | 580 | 715 | |
About SYI Group Information :
Specialist in Municipal, Drainage & Machinery Products & Service
SYI is GroupGroup Companies have served the society for over 20 years with best Municipal, Drainage and Machinery products.
···SYI Foundry
···SYI Pipeline Corporation
···SYI Industrial Casting Division
···SYI Forging Factory
···SYI Aluminum Division
SYI is the Specialist in Municipal, Drainage & Machinery Products & Services, including pipes, fititngs,couplings, valves, manhole covers, bollards, and OEM products in different materials ,sizes and technical processes. Now I invite you to visit our site syigroup.en.made-in-china.com.
Our aim is to provide all of our customers with VALUE of the products in stead of only low prices
About SYI Valves :
Gate Valves, Check Valves, Butterfly Valves, Strainers, Fire Hydrants and Full ranges of Pipeline products & accessoriesDIN / BS / EN / API / ANSI / AWWA Standards available with different Material & SpecsCompetitive Price, Reliable Quality & On-time Delivery|
Gate Valve |
Butterfly Valve |
Y-Strainer Valve |
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Underground Fire Hydrant |
Cast Steel Gate Valve |
Cast Steel Globe Valve |
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Cast Steel Swing Check Valve |
Russian Standard Gate Valve |
Swing Check Valve |
Production Facility :
" SYI regards quality as an essential and integral part of our business success. To meet this, we have achieved all types of world-known certificates. Manufacturing "SYI" Brand products has evolved as a mark of quality and our products find warmacceptance in domestic as well as international market. "
Design :
A group of highly experienced technical engineers is right here waiting for any of your requests.Professional softwares are used for design and test.We are able to use most of the world-wide engineering softwares, including AUTO Cad, Pro Engineer, Solid Works and etc. SYI Industrial Co., Ltd.
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