Page 1420 - Icon Ridge Automotive & Truck Catalog

Pneumatic tools

Hose rupture valves

• Protects personnel and the environment from damage caused by
the hose bursting and whipping around
• The air supply is suddenly interrupted by the hose guard when the
air flow rate exceeds a certain value. The maximum permissible vo-
lume flow is selected in a manner that ensures normal use of com-
pressed air tools. In the case of a failure, the hose break fuse blows
off from a small nozzle. Once the hose breakage has been correc-
ted, the hose breakage fuse can be reset to 0.
• Changing the tube diameter and / or the tube length also changes
the closing point of the valve
• Meets DIN ISO 4414 and EN 983 § § 5.4.5.11.1 5.3.4.3.2
• Adjustable
• Can be used with every compressed air system
• TÜV mark 01-02-0145
• Explosion proof (Ex)

Technical Data
Item no. 3934 38
Internal thread: 3/8”
External thread: 3/8”
Inlet pressure: max. 18 bar
Max. volume stream
at 8 bar: 1 400 NI/min
Temperature range: -20°C to +80°C
Housing: Aluminium
Internal parts: stainless steel/plastic
Weight: 58 g

Article No. Article Description QTY
3934 38 DL-HOSE RUPTURE VALVE 3/8" 1

Existing standards and guidelines are met due to the use of a hose breakage fuse. management responsibility
Ignorance is no excuse... It is the duty of management to protect the jobs of their employees and ensure that the machinery adheres to the Machi-
nery Directive EN 983.
DIN EN ISO 4414 §5.4.5.11.1 and EN 983 5.3.4.3.2
If the failure of a hose line poses a risk of leakage of the pressure medium the hose or conduit must be shielded.
If the failure of a hose line poses the risk of whipping or causes the pressure medium to leak, the hose must be held or shielded.
Occupational Safety Regulation BetrSichV 27.09.2002 Appendix 1, item 2.5 and 2.7 (2 paragraph)
If when working with agents objects are expected to fall down or be ejected, suitable protection devices must be provided. „If there is a risk of the
work equipment splintering or fracturing, appropriate protection devices must be provided.“

Select the correct hose rupture valve
1. Specify the internal diameter of the hose (blue diagonal line)
2. Specify the length of the hose
3. Note the amount of air required the device to be connected, which is in use.
4. Bsp: red point.
Here a 10 m hose and 8 mm inner diameter intersects at a volume flow of approximately 1,000 Nl / min.
For security reasons, always select the next smallest diameter, in this case 3/8”.
max. Volumenstrom [l/min]
bei P₂ = 7 bar
Schlauch-ID [mm]

Hose Length [m]

Technical data subject to change.
Availability subject to country specific rules and regulations. www.iconridge.com Source: Theo Förch GmbH & Co. KG 1420