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F| Style | Model | Body Size | Inlet Port Size | Max. Operating Pressure | Max. Working Pressure | Port | Price | |
|---|---|---|---|---|---|---|---|---|
| A | DT-1250-MOMF-5 | 1 1/4" | 1 5/8-12 UN | 2500 psi | 2500 PSI | 1 5/8-12 UN | £300.00 | |
| B | DT-1250-MFMO-5 | 1 1/4" | 1 5/8-12 UN | 2500 psi | 2500 PSI | 1 5/8-12 UN | £260.17 | |
| C | DT-1250-MSMS-5 | 1 1/4" | 1 11/16-12 UN | 4000 psi | 4000 PSI | 1 11/16-12 UN | £265.72 | |
| D | DT-1250-MSMO-5 | 1 1/4" | 1 11/16-12 UN | 4000 psi | 4000 PSI | 1 5/8-12 UN | £254.54 | |
| E | DT-1250-MFMF-5 | 1 1/4" | 1 5/8-12 UN | 2500 psi | 2500 PSI | 1 5/8-12 UN | £312.10 | |
| F | DT-1250-MOMS-5 | 1 1/4" | 1 5/8-12 UN | 4000 psi | 4000 PSI | 1 11/16-12 UN | £260.17 | |
| D | DT-1000-MSMO-5 | 1" | 1 7/16-12 UN | 5000 psi | 5000 psi | 1 5/16-12 UN | £169.06 | |
| E | DT-1000-MFMF-5 | 1" | 1 5/16-12 UN | 3000 psi | 3000 psi | 1 5/16-12 UN | £166.36 | |
| A | DT-1000-MOMF-5 | 1" | 1 5/16-12 UN | 3000 psi | 3000 psi | 1 5/16-12 UN | £165.66 | |
| F | DT-1000-MOMS-5 | 1" | 1 5/16-12 UN | 5000 psi | 5000 psi | 1 7/16-12 UN | £155.21 | |
| B | DT-1000-MFMO-5 | 1" | 1 5/16-12 UN | 3000 psi | 3000 psi | 1 5/16-12 UN | £181.36 | |
| C | DT-1000-MSMS-5 | 1" | 1 7/16-12 UN | 5000 psi | 5000 psi | 1 7/16-12 UN | £174.40 | |
| E | DT-500-MFMF-5 | 1/2" | 3/4-16 UNF | 4500 psi | 4500 PSI | 3/4-16 UNF | £102.28 | |
| C | DT-500-MSMS-5 | 1/2" | 13/16-16 UN | 5000 psi | 5000 psi | - | £94.88 | |
| A | DT-500-MOMF-5 | 1/2" | 3/4-16 UNF | 4500 psi | 4500 PSI | 3/4-16 UNF | £89.90 | |
| B | DT-500-MFMO-5 | 1/2" | 3/4-16 UNF | 4500 psi | 4500 PSI | 3/4-16 UNF | £103.00 | |
| D | DT-500-MSMO-5 | 1/2" | 13/16-16 UN | 5000 psi | 5000 psi | 3/4-16 UNF | £104.92 | |
| F | DT-500-MOMS-5 | 1/2" | 3/4-16 UNF | 5000 psi | 5000 psi | - | £102.70 | |
| A | DT-750-MOMF-5 | 3/4" | 1 1/16-12 UN | 3500 psi | 3500 psi | 1 1/16-12 UN | £125.88 | |
| B | DT-750-MFMO-5 | 3/4" | 1 1/16-12 UN | 3500 psi | 3500 psi | 1 1/16-12 UN | £144.41 | |
| E | DT-750-MFMF-5 | 3/4" | 1 1/16-12 UN | 3500 psi | 3500 psi | 1 1/16-12 UN | £130.45 | |
| D | DT-750-MSMO-5 | 3/4" | 1 3/16-12 UN | 5000 psi | 5000 psi | 1 1/16-12 UN | £125.34 | |
| C | DT-750-MSMS-5 | 3/4" | 1 3/16-12 UN | 5000 psi | 5000 psi | 1 3/16-12 UN | £145.58 | |
| E | DT-370-MFMF-5 | 3/8" | 9/16-18 UNF | 5000 psi | 5000 psi | - | £93.95 | |
| B | DT-370-MFMO-5 | 3/8" | 9/16-18 UNF | 5000 psi | 5000 psi | - | £80.13 | |
| C | DT-370-MSMS-5 | 3/8" | 11/16-16 UN | 5000 psi | 5000 psi | - | £105.77 | |
| D | DT-370-MSMO-5 | 3/8" | 11/16-16 UN | 5000 psi | 5000 psi | - | £79.28 | |
| F | DT-370-MOMS-5 | 3/8" | 9/16-18 UNF | 5000 psi | 5000 psi | - | £85.57 | |
| A | DT-370-MOMF-5 | 3/8" | 9/16-18 UNF | 5000 psi | 5000 psi | - | £85.36 | |
| F | DT-620-MOMS-5 | 5/8" | 7/8-14 UNF | 5000 psi | 5000 psi | 1-14 UNS | £230.51 | |
| B | DT-620-MFMO-5 | 5/8" | 7/8-14 UNF | 3500 psi | 3500 psi | - | £208.49 | |
| C | DT-620-MSMS-5 | 5/8" | 1-14 UNS | 5000 psi | 5000 psi | 1-14 UNS | £225.86 | |
| A | DT-620-MOMF-5 | 5/8" | 7/8-14 UNF | 3500 psi | 3500 psi | - | £218.47 | |
| E | DT-620-MFMF-5 | 5/8" | 7/8-14 UNF | 3500 psi | 3500 psi | - | £226.49 |
Parker DT Series check or one-way valves are installed in pipelines to prevent backflow and ensure efficient operation. They feature all steel construction to resist corrosion and a one piece body design to eliminate threads & seals, thus preventing leakage and allowing smooth flow by isolating the poppet springs from the streams. They have chromium 6 free plating on exterior parts to increase hardness & durability, and UN, UNF & UNS inlet ports for improved fatigue resistance. Choose from a wide range of these valves, available in operating pressure up to 4500 psi.