Expansion Vessel Quick Connector Afriso ASK with Inspection Valve, 2x 3/4" G (MPN 77924)

Afriso ASK quick connector with inspection valve is a compact plumbing fitting designed for safe, removable connection of expansion vessels in closed heating and hot water systems. The unit features two 3/4" G threaded ports and an integrated service (inspection) valve that allows isolation and access for routine checks or vessel replacement without system shutdown. The design supports secure mechanical attachment and straightforward maintenance actions while preserving system tightness.

Advantages

The quick connector combines a robust threaded interface with an inspection valve to simplify vessel exchange and inspection. Its construction minimizes leak risk and enables rapid disconnection and reconnection of expansion vessels. The integrated service valve provides controlled access for pressure checks, charging or isolating the vessel during maintenance. The compact form factor reduces installation space and keeps pipework neat.

Suitable for

• Connection of expansion vessels in central heating systems
• Hot water system expansion vessel installation and replacement
• Maintenance tasks requiring isolation or pressure access to the vessel
• Domestic and light-commercial plumbing installations

Key specifications

• Threaded connections: two 3/4" G ports suitable for standard vessel fittings
• Integrated inspection/service valve for isolation and access
• Designed for use in closed heating and domestic hot water systems
• Compact construction for installation in confined spaces

How to use

Mount the quick connector onto the system pipework by threading the 3/4" G connections to the expansion vessel and the corresponding system fitting. Tighten to the required torque using appropriate tools and sealing methods for the application. Use the inspection valve to isolate the vessel before performing pressure checks, charging, or removal. Follow standard installation practice for heating systems, including draining or isolating the system where necessary before disconnecting components.

Usage recommendations

Install and maintain the connector in accordance with applicable plumbing and heating regulations. Verify compatibility of threads and pressure ratings with the specific expansion vessel and system. Use valve closure to prevent media escape during service and perform leak checks after reconnection.