# 4 in. 304 Stainless Steel IPS Grooved Backflow Preventer

**Manufacturer:** Ames Fire & Waterworks  
**MPN:** `D-4050-LM`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Ames Fire & Waterworks |
| Manufacturer name | Ames Fire & Waterworks |
| Manufacturer | Ames Fire & Waterworks |
| CategoryL1 | Valves |
| CategoryL2 | Backflow Preventers |
| DimensionUnit | inch |
| Extra Product Name | 4 in. 304 Stainless Steel IPS Grooved Backflow Preventer |
| Weight | 60 |
| WeightUnit | lbs |
| Weight_Attrib | Weight |
| height | 14.0 |
| height_Attrib | Height |
| length | 10.0 |
| length_Attrib | Length |
| moq | 1 |
| MPN | D-4050-LM |
| multiple | 1 |
| qtyInStock | Not available |
| SKU | 8455385 |
| tierMinQty1 | 1 |
| tierPrice1 | 4447.63 |
| width | 24.0 |
| width_Attrib | Width |
| ADA Compliant | No |
| ANSI | ANSI 372, ANSI B16.1 Class 125 |
| AWWA | AWWA C-511 2007, AWWA C-606 |
| Application | Commercial |
| Coating | Polymer |
| Collection | Deringer 50/50G |
| Color Finish Category | Stainless Steel |
| Color Finish Name | Stainless Steel |
| Depth | 14 in |
| End Connection 1 | Grooved |
| End Connection 2 | Grooved |
| End Connections | Grooved |
| FM Approved | Yes |
| Fitting Size 1 | 4 in |
| Fitting Size 2 | 4 in |
| Fitting Sizes | 4 in |
| Height | 14 in |
| IAPMO Listed - | No |
| Installation Type | Horizontal |
| Lead Law Compliance Level | Applicable to Lead Leaching, Not Compliant |
| Length | 10 in |
| Material | Stainless Steel |
| Material Type | 304 |
| Maximum Temperature | 140 |
| Minimum Temperature | 33 |
| NSF | NSF 372 |
| NSF Certified | Yes |
| Number of Handles | Two Handle |
| Pressure - Low | 10 |
| Pressure - Maximum | 175 psi |
| Product Type | Reduced Pressure Detector Assembly |
| Recommended Valve Application | Fire Protection, Irrigation, Plumbing, Waterworks |
| Temperature Range | 33 to 140 Deg F (0.55 to 60 Deg C) |
| UL Listed | UL 3 |
| Valve Body Material | 304 Stainless Steel |
| Valve Body Style | Inline |
| Valve Disc Material | Silicone |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| ferguson.com | 8455385 | 4447.63 | 1 | None | 1 |

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