The BONOMI S250-1 1/2 check valve is an inline spring check valve for general-purpose flow control in gas, oil, and water systems. Configured for one-way flow applications and reverse-flow reduction. This 1-1/2 in. valve features a stainless steel body, FNPT x FNPT connections, a 0.5 psi cracking pressure, and can be mounted horizontally or vertically.
Key Features:
- Valve type: Check valve with inline spring design
- Size: 1-1/2 in. nominal valve size with 1-1/2 in. female NPT connections on both ends
- Body material: Stainless steel
- Internal materials: 316 stainless steel check mechanism and spring
- Seal and seat materials: FKM seat and Viton seal
- Flow rating: 48 gpm with a Cv of 47.4
- Pressure rating: 250 psi WOG; maximum operating pressure 250 psi
- Temperature range: -4 degrees F to 302 degrees F
- Mounting orientation: Horizontal or vertical
- Standards and certifications: ANSI B1.20.1, NSF 372, NSF 61, AISI 316
- Dimensions: 4.53 in. overall length, 3-5/64 in. overall height, 3.07 in. width, 3 in. hex size
| Pipe Size | 1 1/2" |
|---|---|
| Hex Size | 3 in |
| Connection Type | FNPT |
| Body Material | 316 Stainless Steel |
| Length | 4.53 in |
| Max. Water Pressure | 250 psi |
| Material of Construction | stainless steel |
| Max. Temp. | 302 deg F |
| Application - Valves | General Purpose |
| Size | 1 1/2" |
| Seat Material - Check Valves | FKM |
| Overall Height | 3-5/64 in |
| Max. Pressure | 250 psi WOG |
| Cracking Pressure - Check Valves | 0.5 psi |
| Max. Steam Pressure - Valves | Not Rated |
| Mounting Orientation - Check Valves | Horizontal, Vertical |
| Connection Type - Check Valves | FNPT x FNPT |
| Seal Material | FKM |
| Max. Temp. - Valves | 302 deg F |
| Cap to Inlet Center | 2-1/4 in |
| Mechanism and Body Design | Inline Spring |
| Flow - Valves | 48 gpm |
| Flow Design | Single |
| Width | 3.07 in |
| Pipe or Tube Size - Check Valves | 1-1/2 in |
| Seat Material | FKM |
| Standards | ANSI B1.20.1, NSF 372 |
| Spring Material | 316 Stainless Steel |
| Cracking Pressure | 0.5 psi |
| Max. Water Pressure - Valves | 250 psi |
| Spring Material - Check Valves | 316 Stainless Steel |
| Item - Check Valves | Check Valve |
| Item | Check Valve |
| Seal Material - Check Valves | Viton |
| Body Material - Valves | Stainless Steel |
| Mounting Position | Horizontal, Vertical |
| Compliance | AISI 316 |
| Overall Length | 4.53 in |
| Flow | 48 gpm |
| Pipe or Tube Size | 1-1/2 in |
| Mounting Orientation | Horizontal, Vertical |
| Silent Check | Standard |
| For Media | Gas, Oil, Water |
| Connection Size - Side 2 | 1-1/2 in |
| Check Mechanism Material | 316 Stainless Steel |
| Average Surface Roughness (Ra) | Not Applicable |
| 3-A Standard Compliance | Not Rated |
| Operating Temperature - Minimum | -4 deg F |
| NSF Certifications for Food and Drinking Water | NSF 61 |
| Nominal Valve Size | 1-1/2 in |
| Vacuum Service Rating | Not Rated |
| ANSI Flange Class | Not Applicable |
| Connection Type - Side 1 | NPT |
| Valve Ways | 2-Way |
| Includes Counterweight | No Counterweight |
| Valve Body Style | Inline |
| Height - Cap to Inlet Center | 2-1/4 in |
| Connection Gender - Side 2 | Female |
| Connection Gender - Side 1 | Female |
| Maximum Pressure - Steam | Not Rated |
| Connection Size - Side 1 | 1-1/2 in |
| Connection Type - Side 2 | NPT |
| Coefficient of Volume (Cv) | 47.4 |
| Check Mechanism | Swing |
| Maximum Pressure - Operating | 250 psi |
| Operating Temperature - Maximum | 302 deg F |
| Valve Series | S250 |
| Wire Rope Length | 4.53 in |
| Country of Origin (subject to change) | Italy |
| Package Quantity | 1 |