Views: 0 Author: Site Editor Publish Time: 05-15-2026 Origin: Site
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.
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
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).
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.
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:
