Holmbury / VPC Series
Valve Category:
Hose Burst Valves
Valve Subcategory
Hose Burst Valves
Manufacturer
Holmbury
INTRODUCTION
Holmbury Hose Burst Valves are used to prevent the uncontrolled descent of a load in the event of a hose failure.
They should be screwed directly into the lifting device (normally a cylinder), or into an in-line manifold that should be mounted as close as possible to the lifting device.
A flow regulator valve, set at least 50% higher than the regulated flow, should be fitted downstream from the hose burst valve at the end of the flexible hose.
OPERATION The valve disk is held apart from the flow block with a spring fitted over the centre stem of the valve.
Apart from a small pressure , fluid can flow freely in the direction from Z to Z1.
When fluid is flowing in the reverse direction, from Z1 to Z, if the flow rate exceeds the valve setting (see dimension T and adjustment graph), the valve disk will snap shut and close the ports of the flow block.
APPLICATIONS
Lifting equipment and machinery where it is necessary to safeguard against excessive flow rates.
MATERIALS
Zinc plated carbon steel body.
TECHNICAL DETAILS
Maximum working pressure for all sizes is 350 bar.
Holmbury Hose Burst Valves are used to prevent the uncontrolled descent of a load in the event of a hose failure.
They should be screwed directly into the lifting device (normally a cylinder), or into an in-line manifold that should be mounted as close as possible to the lifting device.
A flow regulator valve, set at least 50% higher than the regulated flow, should be fitted downstream from the hose burst valve at the end of the flexible hose.
OPERATION The valve disk is held apart from the flow block with a spring fitted over the centre stem of the valve.
Apart from a small pressure , fluid can flow freely in the direction from Z to Z1.
When fluid is flowing in the reverse direction, from Z1 to Z, if the flow rate exceeds the valve setting (see dimension T and adjustment graph), the valve disk will snap shut and close the ports of the flow block.
APPLICATIONS
Lifting equipment and machinery where it is necessary to safeguard against excessive flow rates.
MATERIALS
Zinc plated carbon steel body.
TECHNICAL DETAILS
Maximum working pressure for all sizes is 350 bar.
| Part Number | ØA | C | CH | B | Request a Quote |
| VPC 14 BSP | 1/4" BSP | 50 | 19 | 12 | Request Quote |
| VPC 38 BSP | 3/8" BSP | 58 | 22 | 12 | Request Quote |
| VPC 12 BSP | 1/2" BSP | 70 | 27 | 14 | Request Quote |
| VPC 34 BSP | 3/4" BSP | 78 | 86 | 16 | Request Quote |
| VPC 100 BSP | 1" BSP | 92 | 46 | 18 | Request Quote |
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |