75-B (89 mm) Forged Aluminum Storz Coupling G 2 1/2” Female Thread with Lock

This is a 75-B Storz coupling with a lug distance of 89 mm and G 2 1/2 inch female threads. It is made of forged aluminum with an NBR (nitrile rubber) seal. The maximum operating pressure is 16 bar (232 psi). The coupling is suitable for temperatures between -40 to 110 °C (-40 to 230 °F).

Storz couplings are used in fire protection systems and industrial applications. Both parts of the Storz coupling have the same head structure, so couplings with the same lug distance can be buckled together.

Pros:

• Quick connection and release by twisting 120°
• All couplings with the same lug distance and nominal size are compatible with one another
• Aluminum couplings are lighter in weight than stainless steel
• Locking device to prevent accidental decoupling

Cons:

• Storz couplings have no shut-off function

Specifications

Storz size : 75-B
Size of threaded connection [inch] : 2 1/2 inch
Thread connection : Inner thread cylindrical BSPP-G
Lug distance : 89 mm
Material : Forged aluminum
Seal material : NBR (nitrile rubber)
Operating pressure (bar) : 16
Coupling features : With lock
Min temperature (°C) : -40
Max temperature (°C) : 110