Holmbury / ATR Series
Valve Category:
Check Valves
Valve Subcategory
Check Valves
Manufacturer
Holmbury
INTRODUCTION
One-way valve for in-line use.
Suitable for any type of hydraulic system using liquids that are not highly viscous.
The standard types are in zinc plated carbon steel and are therefore especially suitable for non-corrosive mineral based oils and liquids.
FEATURES
Standard types:
ALTERNATIVE USES
As a pressure sequence valve by changing the internal spring to an appropriate 'cracking point' value.
For flow restrictor check valves a central bleed hole can be provided, sized to customer requirements.
One-way valve for in-line use.
Suitable for any type of hydraulic system using liquids that are not highly viscous.
The standard types are in zinc plated carbon steel and are therefore especially suitable for non-corrosive mineral based oils and liquids.
FEATURES
Standard types:
- Good pressure / flow characteristics, see graphs.
- Valve body in zinc plated carbon steel.
- Piston in carbon steel.
- Internal spring in silicon steel - stabilized.
- Cracking points 5 psi and 65 psi are standard, other values on request.
ALTERNATIVE USES
As a pressure sequence valve by changing the internal spring to an appropriate 'cracking point' value.
For flow restrictor check valves a central bleed hole can be provided, sized to customer requirements.
| DIMENSIONS AND PRESSURE RATINGS | ||||||||||||||
| CHECK VALVE SIZE | Nominal diameter | Maximum working pressure in bar |
A* | B | C | CH | Cracking point - bar (psi value in brackets) | Request Quote | ||||||
| ATR 1/4" | 6.3 | 400 | 1/4" | 60 | 18.5 | 19 | 0.35 (5) | 1.0 (14) | 4.5 (65) | 15 (215) | - | - | - | Request Quote |
| ATR 3/8" | 10 | 400 | 3/8" | 70 | 23.5 | 24 | 0.35 (5) | 4.5 (65) | - | - | - | - | - | Request Quote |
| ATR 1/2" | 12 | 350 | 1/2" | 77 | 29.5 | 30 | 0.35 (5) | 1.0 (14) | 2.0 (28.5) | 4 (57) | 4.5 (65) | 8 (115) | 20 (285) | Request Quote |
| ATR 3/4" | 20 | 350 | 3/4" | 90 | 35.5 | 36 | 0.35 (5) | 4.5 (65) | 8 (115) | - | - | - | - | Request Quote |
| ATR 1" | 25 | 350 | 1" | 106 | 44.5 | 45 | 0.35 (5) | 1.5 (21) | 4.5 (65) | 10 (140) | - | - | - | Request Quote |
| ATR 11/4" | 31.5 | 250 | 11/4" | 125 | 54.5 | 55 | 0.35 (5) | 1 (14) | 4.5 (65) | - | - | - | - | Request Quote |
| ATR 11/2" | 40 | 250 | 11/2" | 140 | 64.5 | 65 | 0.35 (5) | 2.5 (35) | 4.5 (65) | - | - | - | - | Request Quote |
| ATR 2" | 50 | 250 | 2" | 160 | 74.5 | 75 | 0.35 (5) | 4.5 (65) | - | - | - | - | - | Request Quote |
* BSP is standard, NPT, SAE and Metric available on request.
Dimensions in mm (except A).
Table shows typical values only. 5 and 65 psi options are standard. Other values available on request.
Dimensions in mm (except A).
Table shows typical values only. 5 and 65 psi options are standard. Other values available on request.
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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |