Hand Lever Wafer Butterfly Valve | Replaceable Soft Seat | OEM Customization

Product Overview:

Tianjin Worlds Valve Co., Ltd. offers a compact hand lever wafer butterfly valve designed for quick, manual on/off control in small to medium pipeline systems. This valve features a replaceable soft seat–a practical maintenance advantage that allows the elastomer seat to be changed in the field without removing the valve from the line. Available from 2 inches (DN50) up to 12 inches (DN300) , it covers the most commonly specified sizes for water treatment, HVAC, irrigation, and light industrial applications.

Introduction:

Product Structure: Hand Lever Wafer Butterfly Valve  

Body Material: Ductile Iron, Carbon Steel, Stainless Steel, Aluminum-bronze

Disc Material: Ductile Iron, Stainless Steel, Duplex 2505, Supper Duplex 2507, Aluminum Bronzed... 

Seat Material: EPDM, NBR,FKM, VITON, PTFE, CR, NR, MVQ, HYPALON... 

Connection Type: Wafer type connection

Size Range: DN50–DN300  

MAX Working Pressure:  

PN6/ PN10 / PN16 / 150LB/ 5K/ 10K / “D” / “E”... 

Top Flange: Available in ISO 5211 standard for direct actuator mounting  

Face to Face : DIN558-1 / DIN3202 / ISO5752 / BS5155...

Operating Temperature Range: -20℃to 120℃ (eg: EPDM) 

Operation: Manual Lever, Worm Gear, Electric Actuator, Pneumatic Operated... (as specified)

Customization: All materials, dimensions, and pressure ratings can be modified according to customer requirements

Type: CBF03-TA03--Product Catalog

Key Features & Advantages：

1. Replaceable Soft Seat – Quick, Low-Cost Maintenance

• The elastomer seat can be changed without removing the valve from the pipeline.

• No special tools required – simple disassembly of the body bolts is enough.

• Reduces maintenance downtime and spare parts inventory (only the seat needs replacement, not the whole valve).



2. Hand Lever Operation with Throttling Capability

• 90° quarter-turn operation: parallel = open, perpendicular = closed.

• 10-position locking plate allows basic flow regulation at intermediate angles.

• Ergonomic lever requires low operating torque; suitable for frequent manual cycling.



3. Compact Wafer Design – Space-Saving & Easy Installation

• Installs directly between EN 1092 or ANSI B16.5 flanges using through-bolts.

• No companion flanges required – light weight, compact footprint.

• Standard face-to-face per ISO 5752 / EN 558 Series 20.



4. Flexible Actuation Options – Manual or Automated

• Standard: hand lever (included).

• Optional: worm gear operator for larger sizes or higher torque.

• Optional: ISO 5211 top flange for electric or pneumatic actuators (mounting kit available).



5. Durable Materials & Full Customization

• Body: ductile iron (GGG40) with epoxy coating (any RAL color).

• Disc: CF8 (304) standard; upgrade to CF8M, duplex, aluminum bronze, or coatings on request.

• Seat: EPDM standard; NBR, Viton, PTFE, or silicone available for specific media.

• Pressure rating: PN10 / PN16 / Class 150 (customizable).

• Size range: 2" to 12" (DN50 – DN300).

Why Choose Tianjin Worlds Valve?

1. We manufacture strictly to customer specifications. Need a NBR seat for oil service? A CF8M disc for seawater? We produce it.

2. The replaceable seat design saves you money over the valve's lifetime – only the seat wears out, not the whole valve.

3. Full documentation – material certificates, pressure test reports – included with every order.

4. ISO 9001 certified facility with CE, UKCA, WRAS, ACS available.

 

Conclusion

The hand lever wafer butterfly valve with a replaceable soft seat offers a practical, low-maintenance solution for small to medium pipeline systems. Its field-serviceable seat reduces downtime, while the flexible actuation options – from manual lever to electric or pneumatic actuators – make it adaptable to a wide range of applications.

We invite you to contact us for a competitive quote or to schedule a visit to our factory. Our engineering team is ready to discuss your specific media, pressure, and actuator requirements, and to demonstrate our manufacturing capabilities first-hand. No matter whether you need a standard EPDM seat or a special NBR/Viton configuration, we deliver exactly what your project demands.

Meeting your specific needs:

dekai@worldsvalve.com