
Kromschroeder 03089071 100-210 mbar JSAV25, JSAV40 spring
Adjusting spring (response spring) Kromschroder 03089071 for safety shut-off valves JSAV 25 and JSAV 40 (range 100–210 mbar). This is an original replacement spring (response spring/sensor spring) from Kromschroder, designed for readjustment of the trip thresholds of safety shut-off valves (SSV) of the JSAV 25 and JSAV 40 series for the upper pressure limit. Unlike pressure regulators where the spring maintains outlet pressure, in JSAV valves this spring sets the emergency threshold. When gas pressure exceeds the set limit (100–210 mbar), the valve trips and automatically shuts off the fuel supply, protecting downstream equipment from damage. If the old valve trips too early (false lockouts) or does not trip at dangerous pressure, or if protection needs to be adjusted to other gas network parameters (factory setting usually 120 mbar) — replacement with original spring 03089071 is necessary. Technical specifications: Parameter Value Part numbers 03089071, 624.625.010 Manufacturer Kromschroder / Honeywell (Germany) Part type Response spring for JSAV Compatibility JSAV 25 (1"), JSAV 40 (1½") Adjustment range Pdo (upper limit) 100 – 210 mbar (0.1 – 0.21 bar) Color marking Dark green Standard factory setting 120 mbar Material High-quality spring steel Weight ~0.02 kg (20 g) Application Natural gas, liquefied gas (propane-butane), biogas, air Compatibility This spring 03089071 is intended for use in Kromschroder safety shut-off valves JSAV 25 (with connection Rp 1") and JSAV 40 (with connection Rp 1½"). Why replace the spring in JSAV: Readjustment of trip threshold: Factory setting for