Kromschroder Compensating diaphragm 74924620
SKU 74924620
Brand Kromschroder
Photos
161.47 EUR
146.79EUR
in stock · 2
incl. 21% VAT · 121.31 EUR excl. VAT · shipping calculated at checkout
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Description
The Kromschroder 74924620 is a compensating diaphragm made of perbunan (NBR), designed for use in VGBF65..05 gas pressure regulators and GIK65/B ratio regulators. It converts pressure differential into mechanical force to maintain stable outlet pressure, compensating for inlet pressure fluctuations. This spare part is compatible with Kromschroder VGBF 65..05 and GIK 65/B models.
Further details
| Application | natural gas, liquefied gas (propane-butane), biogas (with limitations), air |
|---|---|
| Installation notes | check the diaphragm for correct seating and that no folds or tears are present; the gasket surfaces must be clean. after replacement, the regulator or valve outlet pressure should be rechecked with a manometer and adjusted if necessary to match the burner |
| Key advantages | restoration of regulation accuracy; prevention of gas leaks; compensation of pressure fluctuations |
| Maintenance requirement | replacement once per year (standard conditions) or twice per year (for biogas) |
| Purpose | compensation of inlet pressure fluctuations, stabilization of outlet pressure |
Choosing and fitting
When selecting a compensating diaphragm for a gas regulator or ratio regulator, ensure it matches the specific series and model. Compare the part number and markings on the original diaphragm with the catalogue code. Check the effective area, stroke, and material compatibility with the fuel gas (natural gas, LPG, or biogas). During installation, verify correct seating, no folds or tears, and clean gasket surfaces. After replacement, recheck outlet pressure with a manometer and adjust if necessary.
Signs of failure
A worn or damaged compensating diaphragm can cause unstable outlet pressure, leading to pressure fluctuations at the burner, flame failure, or incomplete combustion. It may also result in gas leaks through the vent line or housing. Regular inspection and replacement are recommended to maintain regulation accuracy and safety.
Fits equipment
Kromschroder VGBF 65..05; GIK 65/BKromschroder VGBF65..05Kromschroder GIK65/B
All specifications
| material | perbunan (NBR) |
|---|---|
| Compatibility | VGBF65..05, GIK65/B |
Part numbers
| SKU | 74924620 |
|---|---|
| Additional article | 624.478.001 |
