STRAIGHT THROUGH COUPLINGS / INDUSTRIAL INTERCHANGE
Industrial interchange straight-through quick couplings designed for uninterrupted hydraulic flow paths. Available in Brass, Steel, and Stainless Steel, these couplings conform to ISO 7241-2 and are built for reliable performance across a wide range of industrial applications.
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Products
ISO 7241-2
Industrial interchange
Features
- ✓Connexion by pulling back the sleeve
- ✓Disconnection by pulling back the female sleeve
- ✓Connexion under pressure is not allowed
- ✓Disconnection under pressure not allowed
- ✓Interchangeability Us Market
Technical Specifications
- •Brass
- •NBR
- •Backup ring in PTFE
- •-25°C to +125°C (-13°F to +257°F)
- •According to ISO 7241-2
Standard
ISO 7241-2
Material
Brass / Steel / SS
Seal Material
NBR
Temperature Range
-25°C to +125°C
Coupler Female Thread
| Part No. (Brass) | Part No. (Stainless) | Thread Size (NPT) | A Overall Length (in.) | B Wrench Flat (in.) | G Largest Dia. (in.) |
|---|---|---|---|---|---|
| ST1SF | ST1SF-304 | 1/8" | 1.06 | 0.56 | 0.69 |
| ST2SF | ST2SF-304 | 1/4" | 1.54 | 0.81 | 0.94 |
| ST3SF | ST3SF-304 | 3/8" | 1.59 | 1 | 1.16 |
| ST4SF | ST4SF-304 | 1/2" | 1.98 | 1.13 | 1.3 |
| ST6SF | ST6SF-304 | 3/4" | 2.15 | 1.44 | 1.66 |
| ST8SF | ST8SF-304 | 1" | 2.43 | 1.75 | 2.02 |
| ST10SF | – | 1-1/4" | 2.44 | 2 | 2.51 |
| ST12SF | – | 1-1/2" | 2.88 | 2.5 | 3 |
Coupler Male Thread
| Part No. (Brass) | Part No. (Stainless) | Thread Size (NPT) | A Overall Length (in.) | B Wrench Flat (in.) | G Largest Dia. (in.) |
|---|---|---|---|---|---|
| ST1SM | ST1SM-304 | 1/8" | 1.06 | 0.56 | 0.69 |
| ST2SM | ST2SM-304 | 1/4" | 1.69 | 0.81 | 0.81 |
| ST3SM | ST3SM-304 | 3/8" | 1.75 | 1 | 1.16 |
| ST4SM | ST4SM-304 | 1/2" | 1.94 | 1.13 | 1.3 |
| ST6SM | – | 3/4" | 2.17 | 1.44 | 1.66 |
| ST8SM | – | 1" | 2.53 | 1.75 | 2.02 |
Nipple Female Thread
| Part No. (Brass) | Part No. (Stainless) | Part No. (Steel) | Thread Size (NPT) | D Overall Length (inch) | E Overall Length (inch) | F Hex Size (inch) | G Largest Dia. (inch) |
|---|---|---|---|---|---|---|---|
| ST1PF | ST1PF-304 | ST1PF-S | 1/8" | 0.98 | 0.57 | 0.56 | 0.65 |
| ST2PF | ST2PF-304 | ST2PF-S | 1/4" | 1.46 | 0.74 | 0.5 | 0.87 |
| ST3PF | ST3PF-304 | ST3PF-S | 3/8" | 1.62 | 0.96 | 1.38 | 1.59 |
| ST4PF | ST4PF-304 | ST4PF-S | 1/2" | 1.85 | 0.95 | 1.13 | 1.3 |
| ST6PF | – | ST6PF-S | 3/4" | 2.15 | 1.09 | 1.38 | 1.59 |
| ST8PF | – | ST8PF-S | 1" | 2.35 | 1.18 | 1.63 | 1.88 |
| ST10PF | – | ST10PF-S | 1.1/4" | 2.38 | 1.11 | 2 | 2.31 |
| ST12PF | – | ST12PF-S | 1.1/2" | 2.81 | 1.17 | 2.38 | 2.74 |
Nipple Male Thread
| Part No. (Brass) | Part No. (Stainless) | Part No. (Steel) | Thread Size (NPT) | D Overall Length (inch) | E Overall Length (inch) | F Hex Size (inch) | G Largest Dia. (inch) |
|---|---|---|---|---|---|---|---|
| ST1PM | ST1PM-304 | ST1PM-S | 1/8" | 1.04 | 0.63 | 0.44 | 0.59 |
| ST2PM | ST2PM-304 | ST2PM-S | 1/4" | 1.53 | 0.81 | 0.56 | 0.65 |
| ST3PM | ST3PM-304 | ST3PM-S | 3/8" | 1.69 | 0.86 | 0.69 | 0.79 |
| ST4PM | ST4PM-304 | ST4PM-S | 1/2" | 1.94 | 1.01 | 0.88 | 1.01 |
| ST6PM | – | ST6PM-S | 3/4" | 2.19 | 1.11 | 1.06 | 1.23 |
| ST8PM | – | ST8PM-S | 1" | 2.51 | 1.34 | 1.38 | 1.59 |
Performance Data
| Size | Flow Rate l/min (GPM) @ 0.2 MPa pressure drop | Rated Pressure — MPa (PSI) | |||
|---|---|---|---|---|---|
| mm | inch | BRASS | STEEL | STAINLESS STEEL | |
| 3 | 1/8" | 3 (0.81) | 17 (2500) | 18 (2600) | 29 (4200) |
| 6.3 | 1/4" | 6 (0.62) | 35 (5200) | 38 (5500) | 46 (6700) |
| 10 | 3/8" | 12 (3.24) | 18 (2700) | 25 (3500) | 38 (5500) |
| 12.5 | 1/2" | 12 (3.24) | 15 (2200) | 19 (2700) | 21 (3000) |
| 20 | 3/4" | 28 (7.56) | 11.7 (1700) | 19 (2700) | 21 (3000) |
| 25 | 1" | 50 (13.5) | 8.3 (1200) | 14 (2000) | 11.7 (1700) |
| 31.5 | 1 1/4" | 76 (20.52) | 11.7 (1700) | – | – |
| 40 | 1 1/2" | 100 (27) | 9.6 (1400) | – | – |
Specification Details
| Body Size (in) | Rated Pressure (PSI) — Brass | Rated Pressure (PSI) — Steel | Rated Pressure (PSI) — Other | Rated Flow (L) | Temperature Range (°C) |
|---|---|---|---|---|---|
| 1/8" | 2500 | 2600 | 4200 | 3 | -20 to +125 |
| 1/4" | 5200 | 5500 | 6700 | 6 | -20 to +125 |
| 3/8" | 2700 | 3500 | 5500 | 12 | -20 to +125 |
| 1/2" | 2200 | 2700 | 3000 | 12 | -20 to +125 |
| 3/4" | 1700 | 2700 | 1700 | 28 | -20 to +125 |
| 1" | 1200 | 2000 | – | 50 | -20 to +125 |
| 1-1/4" | 1700 | – | – | 76 | -20 to +125 |
| 1-1/2" | 1400 | – | – | 100 | -20 to +125 |
