Key Features

✓ Genuine CEME replacement diaphragm

✓ CEME Part No. 2649-NN75

✓ Fits 2½" & 3" solenoid valves

✓ Normally Closed & Normally Open

✓ CEME 86 & 87 Series compatible

✓ PU225 & NOPU225 compatible

✓ NBR diaphragm seal

✓ 149mm overall diameter

✓ Pressure-assisted valve design

Datasheets

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.

Related Products & Categories

Seals, Diaphragms & Springs

21/2" Brass Solenoid Valves

3" Brass Solenoid Valves

Replacement Solenoid Coils

View Technical Specification

Technical Specification

Brand: CEME

Model: 2649-NN75

Width: 149.00 mm

Height: 25.00 mm

Depth: 149.00 mm

Weight: 1.00 kg

Body Material: Brass

Function: 2/2 Failsafe Closed, 2/2 Failsafe Open

Operation: Pressure Assisted from 0.5 Bar

Pressure: 0.5 Bar (500 mBar), 0.6 Bar (600 mbar), 0.7 Bar (700 mBar), 0.8 Bar (800 mBar), 1 Bar, 1.2 Bar, 1.3 Bar, 1.4 Bar, 1.5 Bar, 1.6 Bar, 2 Bar, 2.5 Bar, 3 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar

Seals: NBR

Media: Air, Fluid (Non Aggressive), Gases (Non Aggressive), Oils + Fuels 50cSt Max, Water

Spares (Coils, Connectors, Seals): Seals

Found in these Categories

Seals, Diaphragms & Springs

NBR diaphragm to suit CEME 21/2 and 3 inch solenoid valve

Name: NBR diaphragm to suit CEME 21/2 and 3 inch solenoid valve
Brand: CEME
SKU: 22528-NITRILE
Price: 152.28 GBP
Availability: OutOfStock