HA4AK/21 - Pressure Regulator 1-1/4 (32MM) Reseating Relief Range A - Hansen An 11-piece 1/2" drive 6-point

An 11-piece 1/2" drive 6-point SAE deep socket set in 1/2"-1-1/8" — built for mechanics

and heavy-bodied caulks

providing long-lasting performance and reliability

Provides a secure and leak-free connection with the core removal tool

HA4AK/21 - Pressure Regulator 1-1/4 (32MM) Reseating Relief Range A - Hansen An 11-piece 1/2" drive 6-pointThe Hansen HA4AK 21 is a 1" (25 mm) reseating relief regulator from the HA4A modular series, designed for use in ammonia (NH) and other industrial refrigeration systems. It is engineered for automatic reseating after pressure relief, making it ideal for systems requiring continuous protection and minimal downtime. Technical Specifications Model: HA4AK 21 Port Size: 1" (25 mm) Connection Type: Threaded (FPT) Pressure Range: Range A (typically for lower