Holmbury
Holmbury / HQ Series
Vendor: Holmbury
Coupling Type: Hydraulic Couplings & Adapters
Description:
Flat Face Couplings HQ Series
Coupling Category:
Flat Face Couplings
Excavator hammer circuits and other applications involving high pressure pulses.
Construction plant, mobile equipment, general industrial, nuclear, mining and
agricultural. Applications involving dusty or dirty environments and where oil
loss on disconnection cannot be tolerated.
ADVANTAGES
STANDARDS
Exceeds the performance requirements of ISO 16028 (2006) and fully conforms dimensionally.
MATERIALS
Carbon steel body, treated to increase hardness and corrosion resistance, nitrile seals.
CONNECTION / DISCONNECTION UNDER PRESSURE
Connection with residual pressure in the line will be difficult or impossible.
For applications where connection under pressure is required, a Holmbury APM male coupling, or a screw coupling from either the HSC, VP or VEP ranges is recommended.
Disconnection of any quick connect / quick release coupling whilst under full system pressure can be very dangerous and should not be attempted.
ADVANTAGES
- Flat mating faces are easily wiped clean to prevent the ingress of contaminants.
- Improved flow path minimises the pressure drop.
- Non-spill design avoids fluid loss during connection and disconnection.
- No air intrusion during connection.
- Locking sleeve prevents accidental disconnection.
- Zinc nickel surface treatment eliminates chrome 6 and exceeds 200 hour salt spray tests.
STANDARDS
Exceeds the performance requirements of ISO 16028 (2006) and fully conforms dimensionally.
MATERIALS
Carbon steel body, treated to increase hardness and corrosion resistance, nitrile seals.
CONNECTION / DISCONNECTION UNDER PRESSURE
Connection with residual pressure in the line will be difficult or impossible.
For applications where connection under pressure is required, a Holmbury APM male coupling, or a screw coupling from either the HSC, VP or VEP ranges is recommended.
Disconnection of any quick connect / quick release coupling whilst under full system pressure can be very dangerous and should not be attempted.
| DIMENSIONS (mm except where stated) | ||||||||||||
| Size | Nominal Diameter | A* | B | C | D | ØE | F | G* | ØH | ØI | ØK | Weight (kg) |
| HQ10 | 10 | 3/8" | 27 | 30 | 60 | 32 | 69 | 113.5 | 29 | 32 | 19.8 | 0.4 |
| HQ10 | 10 | 1/2" | 27 | 30 | 63 | 32 | 75 | 121.5 | 29 | 32 | 19.8 | 0.4 |
| HQ12 | 12 | 1/2" | 36 | 36 | 71 | 38 | 83.5 | 138 | 40 | 40 | 24.5 | 0.7 |
| HQ12 | 12 | 3/4" | 36 | 36 | 71 | 38 | 83.5 | 138 | 40 | 40 | 24.5 | 0.7 |
| HQ19 | 19 | 3/4" | 46 | 46 | 84 | 47 | 98.5 | 161 | 50 | 50 | 30 | 1.35 |
| HQ19 | 19 | 1" | 46 | 46 | 84 | 47 | 98.5 | 161 | 50 | 50 | 30 | 1.35 |
* Dimensions for BSP and NPT threads. Other threads available.
| Pressure | Size | HQ10 | HQ12 | HQ19 |
| Maximum working pressure coupled | 375 | 350 | 350 | |
| Burst pressure coupled | 1500 | 1500 | 1450 | |
| Burst pressure male | 1200 | 1200 | 1200 | |
| Burst pressure female | 1200 | 1050 | 1050 | |
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |