| Compatibility & Interchange: |
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| Construction: |
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| Safety Notes: |
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| Additional Information: |
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| Dual-Lock P-Series | Coupler (Male Threads) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Part Number |
Coupling Type |
Body Size |
Threads | Material | Length | Max. OD |
Wrench Flats | Max. Operating Pressure | Burst Pressure |
| 4PM3 | Socket/Female | 1/2″ | 3/8″ – 18 Male NPTF | Steel | 2.93″ (74.4mm) |
1.55″ (39.4mm) |
7/8″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| 4PM4 | Socket/Female | 1/2″ | 1/2″ – 14 Male NPTF | Steel | 2.94″ (74.7mm) |
1.55″ (39.4mm) |
7/8″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| 4PM6 | Socket/Female | 1/2″ | 3/4″ – 14 Male NPTF | Steel | 2.98″ (75.7mm) |
1.55″ (39.4mm) |
1-1/16″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| 4PM6-9 | Socket/Female | 1/2″ | 3/4″ – 14 Male NPTF | Steel/PTFE Coating | 2.98″ (75.7mm) |
1.55″ (39.4mm) |
1-1/16″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| 4PM6-S | Socket/Female | 1/2″ | 3/4″ – 14 Male NPTF | 303 Stainless | 2.98″ (75.7mm) |
1.55″ (39.4mm) |
1-1/16″ | 300 PSI (20 bar) |
4500 PSI (310 bar) |
| 4PM8 | Socket/Female | 1/2″ | 1″ – 11-1/2 Male NPTF | Steel | 3.11″ (79.0mm) |
1.55″ (39.4mm) |
1-3/8″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| Dual-Lock P-Series | Plug (Male Threads) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Part Number |
Coupling Type |
Body Size |
Threads | Material | Length | Max. OD |
Wrench Flats | Max. Operating Pressure | Burst Pressure |
| P4M3 | Plug/Male | 1/2″ | 3/8″ – 18 Male NPTF | Steel | 2.00″ (50.8mm) |
1.55″ (39.4mm) |
7/8″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| P4M4 | Plug/Male | 1/2″ | 1/2″ – 14 Male NPTF | Steel | 2.25″ (57.2mm) |
1.55″ (39.4mm) |
15/16″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| P4M4-B | Plug/Male | 1/2″ | 1/2″ – 14 Male NPTF | Brass | 2.25″ (57.2mm) |
1.55″ (39.4mm) |
15/16″ | 300 PSI (20 bar) |
3500 PSI (240 bar) |
| P4M6 | Plug/Male | 1/2″ | 3/4″ – 14 Male NPTF | Steel | 2.55″ (64.8mm) |
1.55″ (39.4mm) |
1-1/8″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| P4M6-9 | Plug/Male | 1/2″ | 3/4″ – 14 Male NPTF | Steel/PTFE Coating | 2.55″ (64.8mm) |
1.55″ (39.4mm) |
1-1/8″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| P4M6-B | Plug/Male | 1/2″ | 3/4″ – 14 Male NPTF | Brass | 2.55″ (64.8mm) |
1.55″ (39.4mm) |
1-1/8″ | 300 PSI (20 bar) |
3500 PSI (240 bar) |
| P4M6-S | Plug/Male | 1/2″ | 3/4″ – 14 Male NPTF | 303 Stainless | 2.55″ (64.8mm) |
1.55″ (39.4mm) |
1-1/8″ | 300 PSI (20 bar) |
4500 PSI (310 bar) |
| P4M8 | Plug/Male | 1/2″ | 1″ – 11-1/2 Male NPTF | Steel | 3.25″ (82.6mm) |
1.55″ (39.4mm) |
1-3/8″ | 300 PSI (20 bar) |
2600 PSI (180 bar) |
| P4M8-B | Plug/Male | 1/2″ | 1″ – 11-1/2 Male NPTF | Brass | 3.25″ (82.6mm) |
1.55″ (39.4mm) |
1-3/8″ | 300 PSI (20 bar) |
3500 PSI (240 bar) |






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