Kromschroder Repair kit 74923360

This repair kit, SKU 74923360, is intended for Kromschroder JSAV gas safety shut-off valves. The kit contains sealing gaskets and a measuring block. It fits models JSAV 25R40/1.. /B, JSAV 25../B, and JSAV 25R40/1../B with a threaded DN25 connection. Maximum operating pressure is 4000 mbar, and ambient temperature can reach 60 °C. Weight is 50 g; the kit is manufactured in Germany.

Repair kits of this type must be selected to match the valve nameplate, including thread size, seal profile, and spring rate. Confirm the nominal diameter and connection type before ordering. During installation, isolate the gas supply and depressurise the gas train. Note component orientation during disassembly, use only the supplied seals, and leak-test the valve after reassembly.

Sealing gaskets and O-rings in gas safety valves lose elasticity and harden after prolonged service. Typical consequences are gas leakage, unstable valve operation, and burner shutdowns on safety lockout. If the valve does not close fully or opens erratically, check the condition of these sealing elements and replace them as a complete set.