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Aliaxis - Model DAV -Pressure Tapping Valves with Extra Long Outlet Spigot
Compact fitting in HD-PE with no threaded connections. Actuating spindle in stainless steel 1.4305. No re-insulating required. Leak free and swarfless tapping up to 10 bar (gas) or 16 bar (water). Integral drill with upper and lower stop, guided in a metal sleeve. Max. 10 turns to activate “OPEN/CLOSE”. With exposed heating element for optimal heat transfer. Maintenance free, operating isolating valve actuated by a rod (e.g. FRIALEN- EBS). Length of the outlet spigots dimensioned for 2 fusion operations. Four cornered shaft wrench size 14.
Areas of Application
The FRIALEN-Pressure Tapping Valves DAV are used for branches of unpressurised and pressurised gas and water pipelines. Outlet spigots are prepared for receiving gas flow controllers. Dimensions on request.
Assembly Instructions
The fusion of the HD-PE distribution pipes and the house connections with FRIALEN-Pressure Tapping Valves takes place by FRIALEN-fusing – leakproof and longitudinally strong.
For tapping as well as “OPEN/CLOSE” an amount of turns with the key are required as follows:
– 10 turns for d 160-225
– 7 turns for d 50-140
The saddle and the outlet spigot have to be prepared according to the general installation instructions (see “Assembly Instructions” for “FRIALEN-Safety Fittings for house connections and distribution pipes up to d 225”). This involves removing the oxide skin and cleaning the pipe covered by the saddle as well as the outlet spigot and the pipe end.
Good reasons for using the FRIALEN-DAV:
- Only 7-10 turns to activate “OPEN/CLOSE”
- Simplified appliance due to little drilling strengths
- Higher flow result, less loss of pressure: in position “OPEN” the drill is not in the floating cross-section
- Fusing and drilling of the main under maximum permitted working pressure gas/water
- Compact part in HD-PE
- Preassembled unit without loose parts
- No preventive measures necessary with regard to corrosion
- Actuating spindle in stainless steel
- Swarfless tapping due to rotating punching drill made of stainless steel
- Punched-out pipe piece fits securely in drill
- Drill with upper and lower stop
- Length of outlet spigot dimensioned for two fusion operations
- Maintenance free, operating isolating valve actuated by a linkage (e.g. FRIALEN-EBS)
- Additional barcode for tracing back the fitting (Traceability-Coding)