Description
CEME 2½" & 3" Solenoid Valve Spare Diaphragm – 2649-NN75
Genuine CEME NBR replacement diaphragm suitable for selected 2½" and 3" normally closed and normally open brass solenoid valves from the CEME 86 and 87 Series.
Designed as a direct replacement diaphragm for CEME 8620, 8621, 8720 and 8721 valves, including equivalent SHAKO-referenced PU225 and NOPU225 models.
Ideal for servicing an existing valve where the diaphragm has become worn, damaged or contaminated, allowing the valve to be repaired without replacing the complete assembly.
Compatible Valve Models
CEME Normally Closed:
✓ 8620 – 2½" BSP normally closed
✓ 8621 – 3" BSP normally closed
CEME Normally Open:
✓ 8720 – 2½" BSP normally open
✓ 8721 – 3" BSP normally open
Equivalent / Alternative References:
✓ PU22524
✓ PU22528
✓ NOPU22524
✓ NOPU22528
Technical Specification
Manufacturer: CEME
CEME Part Number: 2649-NN75
Component: Replacement solenoid valve diaphragm
Material: NBR
Diameter: 149mm
Temperature Range: -15°C to +80°C
Compatible Valve Sizes: 2½" and 3" BSP
Valve Function: Normally closed or normally open
Valve Operation: Pressure assisted / pilot operated
Compatible CEME Series: 86 and 87 Series
Suitable Valve Applications
✓ Air
✓ Water
✓ Light oils
✓ Compatible non-aggressive fluids
✓ Compatible gases
✓ Fuels up to 50 cSt where compatible with NBR
Why Replace the Diaphragm?
The diaphragm is one of the principal wearing components within a pressure-assisted solenoid valve. Damage, contamination or deterioration can result in poor valve operation, internal leakage or failure to open or close correctly.
Replacing the diaphragm can restore normal valve operation without the expense of replacing the complete 2½" or 3" solenoid valve.
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