Worm Gear Operated Wafer Type Butterfly Valves with Rubber Lined

Introduction:

1. Butterfly Valves with Worm Gear Mechanism for Smooth Operation  

  - Precision Control: The corrosion-resistant worm gear ensures smooth 0–90° rotation, even under high torque.  

  - Self-Locking Design: Maintains valve position without slippage, eliminating unintended adjustments.  

  - Extended Lifespan: Hardened steel gears with PTFE lubrication pockets reduce wear.  

2. Rubber-Lined Sealing for Superior Performance  

  - Bubble-Tight Shutoff: EPDM/NBR rubber lining provides Class VI sealing (per ISO 5208).  

  - Chemical Resistance: Withstands acids, alkalis, and chlorinated water (pH 4–10).  

  - Temperature Resilience: Operates from -20°C to 120°C (-4°F to 248°F).  

3. Wafer Type Design for Space Efficiency  

  - Compact Installation: Fits between ANSI/DIN/JIS flanges without additional hardware.  

  - Leak-Free Connection: Integral flange gaskets ensure zero leakage at up to 16 bar (232 psi).  

4. Robust Construction  

  - Body Materials: Ductile iron (epoxy-coated) or SS316 for corrosive environments.  

  - Disc: Stainless steel with full rubber encapsulation to prevent corrosion.  

5. Certified Quality  

- Compliance: CE, ISO 9001, and WRAS certified.  

  - Testing: 100% hydrostatic tested at 1.5x MAWP.  

Why Partner with Tianjin Worlds Valve?

1. Expertise in OEM/ODM Services  

  As a trusted Wafer Type Butterfly Valve Factory, we offer customized solutions tailored to your specific requirements. From design to delivery, we ensure seamless execution.  

2. Maintenance Savings  

  - Replaceable rubber linings extend service intervals by 3x vs. traditional designs.  

3. Global Compliance  

  - Pre-certified for EU, UK, and Asian markets.  

4. Customization  

  - Optional gearbox position indicators, locking devices, or extended stems.

Technical Parameters：

Size	DN32-DN600	DN650-DN2000
Working pressure	16Bar	10Bar
Shell	24Bar	15Bar
Seal	18Bar	11Bar
Operating Temperature	-45℃~+150℃
Operating Environment	Ballast and bilge system          Chemical processing Desalination plants   Drilling rigs    Drinking water Dry powder     Food and beverage     Gas plants HAVC  Mining industry  Paper industry    Sand handling     Seawater    Sugar industry Thermo technical water treatment   Waste water
Driving  method	Hand  Lever  Worm Gear  Electric  Pneumatic

Main Material:

Name	Material
Body	Cast Iron  Ductile Iron  Carbon Steel  Stainless Steel  AL-Bronze
Disc	Ductile Iron  Carbon Steel Stainless Steel  AL-Bronze
Shaft	Stainless Steel  Monel K500
Seat	BUNA  NBR  EPDM  VITON  PTFE  HEPDM  Neoprene  Hypalon Natural rubber

Executive Standard:

Design Standard	EN 593 , MSS SP67 API 609  BS5155
Inspection & Test	API 598  ISO 5208  EN 12266
End Standard	ANSI B16.1 CL. 125LB & B16.5 CL. 150LB AS 2129 Table D & E   BS 10 Table D & E DIN 2501 PN6, PN10 & PN16 EN 1092 PN6, PN10 & PN16 ISO 2531 PN6, PN10 & PN16 ISO 7005 PN6, PN10 & PN16 KS B 1511 / JIS B 2210 5K & 10K MSS SP44 CL. 150LB  AWWA C207 SABS 1123 Table 1000/3 & Table 1600/3
Face to Face	ISO 5752 , EN 558 , MSS SP67 and API 609 DIN3202
Top Flange	ISO 5211(according customer’s needs)

Conclusion:

Discover Worm Gear Operated Wafer Butterfly Valves with Rubber Lining—CE, ISO, and WRAS certified for water, HVAC, and chemical systems. Request pricing and specs today!