Materials & Finish
- Material: ductile cast iron, ASTM A536 Grade 65-45-12.
- Finish: painted red; red epoxy available on request.
Grooved Adapter Nipple
Viking Fireking VK-AN Adapter Nipple
VK-AN — ductile iron, 34.5 bar (500 psi), 1-1/2" and 2" (DN40, DN50), NPT or BSP
Viking Fireking VK-AN Adapter Nipple from Viking is a ductile iron fitting with a grooved end and a threaded end for joining grooved piping to threaded components, rated 34.5 bar (500 psi).
Manufactured by
Viking
Viking Fireking VK-AN Adapter Nipple
Review the confirmed product information, including description, features, benefits, and applications.
The Viking Fireking™ VK-AN Adapter Nipple provides a secure transition between grooved piping systems and threaded components such as valves, gauges and fittings.
Manufactured from ductile iron and pressure-rated for demanding fire-protection applications, it offers a compact solution where threaded connections are required. It is supplied painted red, with red epoxy available on request.
Pressure
- Working pressure: 34.5 bar (500 psi).
Connection & Sizes
- NPT sizes: 1-1/2" and 2".
- BSP sizes: DN40 and DN50.
- Mechanical grooved end with threaded end, NPT or BSP.
Design
- Compact one-piece design.
- For water-based fire-suppression systems.
Grooved-to-Thread Transition
Gives a direct transition from grooved pipe to threaded devices.
No Custom Pieces
Eliminates the need for welded or custom transition pieces.
Compact Design
The compact design minimises space requirements.
High Pressure Rating
Rated 34.5 bar (500 psi) for pump rooms and critical zones.
The VK-AN suits connections between grooved fire-protection piping and threaded equipment in sprinkler and standpipe systems.
Threaded Valves
Connection of threaded valves to grooved pipe.
Pressure Switches & Gauges
Threaded take-offs for pressure switches and gauges.
Test Points
Threaded test point connections on grooved piping.
Auxiliary Equipment
Connection of threaded auxiliary fire system equipment.
UL Listed
The VK-AN is UL Listed at a working pressure of 34.5 bar (500 psi).
FM Approved
The VK-AN is FM Approved at a working pressure of 34.5 bar (500 psi).
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