China AWWA C504 Centerline Butterfly Valve Factory, Exporter
Product Description
Internal and external epoxy coated, high strength ductile iron body
Buna-N or EPDM rubber seat, field replaceable or adjustable using common tools
Bi-directional zero leakage seating up to full rated pressure
Self-adjusting shaft seals
Type 316 stainless steel external fasteners
Integral FA actuator mounting pad, eliminates brackets
| Size, Pressure Rating & Standard | |
|---|---|
| Size | DN40 - DN1800 |
| Pressure Rating | Class 125B, Class 150B, Class 250B |
| Face to Face STD | AWWA C504 |
| Connection STD | ANSI/AWWA A21.11/C111 Flanged ANSI Class 125 |
| Upper Flange STD | ISO 5211 |
| Material Specifications | |
| Body | Ductile Iron, WCB |
| Disc | Ductile Iron, WCB |
| Stem / Shaft | SS416, SS431 |
| Seat | NBR, EPDM |
| Bushing | PTFE, Bronze |
| O Ring | NBR, EPDM, FKM |
| Actuator Options | Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator |
The valves follow the AWWA C504 face-to-face standard, ANSI/AWWA A21.11/C111 Flanged ANSI Class 125 connection standards, and ISO 5211 upper flange mounting standards.
Our AWWA butterfly valves cover sizes from DN40 to DN1800 (including 24" to 72") and support pressure ratings of Class 125B, Class 150B, and Class 250B.
Tight bi-directional zero-leakage shutoff is achieved through the resilient Buna-N or EPDM rubber seat working against a ductile iron disc with a 316 stainless steel seat edge up to full rated pressure.
Yes, the Buna-N or EPDM rubber seat is engineered to be field replaceable or easily adjustable using standard common hand tools, minimizing pipeline maintenance downtime.
With an integral ISO 5211 FA actuator mounting pad that eliminates external bracket requirements, the valves can be paired with hand levers, gearboxes, electric actuators, or pneumatic actuators.
These valves are commonly installed in municipal water filtration plants, pumping stations, distribution pipelines, and industrial power plants for equipment and system isolation.
