Jafar threaded soft-seal valve GW DN40 model 3116, flange/thread connection

Jafar model 3116 is a DN40 threaded soft-seal valve (GW) designed for reliable fluid control in pipeline systems. The valve features a resilient soft sealing element that provides tight shut-off and reduces the risk of leaks. Its compact construction and threaded/flanged connection options allow straightforward inline installation in water, heating and general process lines where space is limited.

Advantages

The soft-seal design ensures effective closure even at low differential pressures and prolongs service life by minimising seat wear. Threaded and flange connection compatibility enables flexible integration with existing pipelines and simplifies replacement or maintenance. Compact dimensions and robust body construction make the valve suitable for confined spaces and routine on/off isolation tasks.

Suitable for

• Water distribution and supply lines
• Heating systems and radiator circuits
• Process pipelines requiring periodic isolation
• Maintenance and service shut-off applications

Key specifications

• Nominal diameter: DN40
• Seal type: soft sealing element for tight shut-off
• Connection types: threaded and flange-compatible ends for inline mounting
• Construction: compact body suitable for confined installation spaces
• Primary use: on/off isolation and flow control in liquid systems

How to use

Install the valve inline in the pipeline using the appropriate threaded or flanged joint fittings and ensure correct alignment to avoid strain on the connections. Use compatible sealing material on threaded joints where required and follow pipework torque recommendations to prevent distortion. Operate the valve by turning the actuator or handle until full open or closed position is achieved; do not apply excessive force. Inspect the valve periodically for tightness and integrity, especially after thermal cycling or system maintenance.

Usage recommendations

For reliable performance, use the valve within the intended fluid types and temperature ranges of typical water and heating systems, avoid aggressive chemicals that can degrade soft seals, and schedule regular inspections. When replacing or maintaining piping, verify compatibility of thread type and flange dimensions to ensure leak-free connections.