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Help CenterGerman Krom Hokde Mechanical Safety Shut-off Valve JSAV40R40/2-3Z
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Of course. Here are the technical parameters and a description for the German Krom Schroeder (Krom Hokde) mechanical safety shut-off valve model JSAV40R40/2-3Z, presented in English with paragraph formatting.
**Product Description**
The Krom Schroeder JSAV40R40/2-3Z is a mechanically operated safety shut-off valve designed for use in industrial gas burner and combustion systems. Its primary function is to act as a critical safety device, automatically interrupting the gas supply in the event of a failure in the pilot flame or main burner, thereby preventing unburned gas from escaping into the atmosphere. This specific model is a dual-valve combination, integrating a main gas valve and a pilot gas valve into a single, compact unit. It operates on a thermo-mechanical principle, where a thermocouple or thermopile, heated by the pilot flame, generates a millivolt signal that holds the safety valve open against a spring mechanism. The "3Z" suffix typically indicates a version with a manual gas cock (gas tap) integrated into the valve body for additional isolation.
**Key Technical Parameters**
* **Model:** JSAV40R40/2-3Z
* **Manufacturer:** Krom Schroeder (often referred to as Krom Hokde in some regions)
* **Valve Type:** Mechanical safety shut-off valve with integrated gas cock.
* **Operation:** Thermo-mechanical, millivolt-operated.
* **Number of Valves:** Combination valve (Main gas valve and pilot gas valve).
* **Connection Type:** R (Rp) - Tapered internal thread (ISO 7-1).
* **Nominal Diameter (DN):** DN 40
* **Orifice Size:** The "40" in the model code typically refers to the nominal capacity or orifice size.
* **Voltage:** Operates on the millivolt signal generated by a thermocouple/thermopile (typically 8-35 mV).
* **Gas Types:** Suitable for natural gas, town gas, liquefied petroleum gas (LPG), and other fuel gases. The specific gas and pressure settings must be configured during installation.
* **Maximum Inlet Pressure:** This valve is designed for medium to high-pressure applications. The exact maximum pressure rating must be confirmed from the official datasheet, but similar models often handle
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