This is a Bonomi pneumatically actuated butterfly valve. Please refer to the technical specifications in the listing for more information.
We have inspected this item and we do not have the capability to install the unit to fully test it. There are some cosmetic scuffs and scratches throughout the unit. Please refer to the photos for more information.
This unit only includes what is photographed in the listing.
Technical Specs
| Item | Pneumatically Actuated Butterfly Valve |
| Manufacturer Part Number | SR531S-4-C1 |
| Actuator Air Pressure - Maximum | 116 psi |
| Actuator Operation | Air to Spring |
| Body Material | Ductile Iron |
| Pipe Size | 4 in |
| Connection Type | Lug |
| ANSI Flange Class | Class 150 |
| Max. Pressure (CWP) | 250 psi |
| Max. Pressure (Steam) | 15 psi |
| Media Temp. Range | -15 °F to 440 °F |
| For Media | Air; Water |
| 3-A Compliance | Not Rated |
| Vacuum Service Rating | Not Rated |
| Valve Deactivated State | Normally Closed (NC) |
| Bolt Holes | 8 |
| Fail Safe Position | Fail Closed |
| Liner Material | FKM |
| O-Ring Material | EPDM |
| Disc Material | Stainless Steel |
| Actuator Features | 0 to 90° Rotation Adjustment |
| Valve Series | SR531S |
| Disc Alignment | Concentric |
| Included Pilot Solenoid | 110V AC Pilot Solenoid |
| Actuator Output Shaft Material | 416 Stainless Steel |
| Actuator Enclosure Material | Aluminum |
| Actuator Air Pressure - Minimum | 80 psi |
| Actuator Ambient Temperature - Maximum | 302 °F |
| Actuator Ambient Temperature - Minimum | -4 °F |
| Lug Diameter | 4 in |
| Pilot Solenoid Voltage | 110V AC |