Shut-off valve Afriso 3/8" x 3/8" model 77720 for fluid and gas lines

Afriso shut-off valve model 77720 is a compact inline valve with 3/8" x 3/8" connections designed to isolate sections of fluid or gas piping. The valve is manually operated and intended for use in systems where a reliable isolation point is required for maintenance, repair or system modification. Its compact form factor and straightforward operation make it suitable for heating, plumbing and instrumentation lines where space is limited and a simple, accessible shut-off is needed.

Advantages

The valve offers dependable on/off flow control with a manual actuator that provides clear open and closed positions. Its inline design and standard 3/8" connections allow easy integration into existing piping runs without the need for special adapters. The compact construction reduces space requirements and simplifies placement in tight installations. The valve is designed for general use with both liquid and gaseous media, enabling versatile application across different systems.

Suitable for

• Isolation points in heating systems and radiators
• Shut-off sections in domestic and commercial plumbing
• Instrumentation and control lines for sensors or gauges
• Maintenance and repair interventions on fluid or gas circuits

Key specifications

• Connection size: 3/8" x 3/8" inline connections
• Operation: Manual shut-off
• Application media: Compatible with liquids and gases used in heating, plumbing and instrumentation
• Design: Compact inline body for limited-space installations

How to use

Install the valve inline with matching 3/8" fittings, ensuring correct orientation for flow if applicable. Securely tighten connections according to appropriate torque recommendations for the piping material to avoid leaks. Operate the valve by turning the manual actuator to the closed position to stop flow and open position to resume flow. Before performing maintenance downstream, verify isolation by closing the valve and confirming pressure relief or drain procedures as required by the system.

Usage recommendations

Use the valve within the pressure and temperature limits of the system media and materials. Verify compatibility of valve materials with the specific fluids or gases in use. Perform periodic inspections for leaks and wear, and replace the valve if sealing performance degrades. For installations subject to vibration or thermal cycling, ensure connections remain tight and consider supporting adjacent piping to reduce stress on the valve.