Key Features

✓ Genuine Shako Replacement Diaphragm
✓ Fits PU225 Brass Solenoid Valves
✓ Fits SPU225 Stainless Valves
✓ Normally Closed & Open Valves
✓ Sizes From 3/8" To 2"
✓ NBR, EPDM, FKM & HNBR Options
✓ 40mm To 107.5mm Diameters
✓ For Pilot Operated 225 Valves
✓ Replacement Valve Spare Part
✓ Existing Diaphragm Only
✓ Limited Remaining Stock
✓ Full Seal Kits Also Available

Description

Shako PU225 & SPU225 Replacement Diaphragm


Genuine Shako replacement diaphragm for PU225 brass and SPU225 stainless steel 2/2 way pilot operated solenoid valves.

Available in NBR, EPDM, FKM (Viton) and HNBR materials, with four diaphragm sizes covering Shako Brass 225 and Stainless Steel 225 series valves from 3/8" to 2".

These diaphragms are suitable for both normally closed and normally open versions of the PU and SPU 225 valve series.

Valve Compatibility

22503 – 40mm diameter
Fits 3/8" and 1/2" PU225 / SPU225 valves

22506 – 66mm diameter
Fits 3/4" and 1" PU225 / SPU225 valves

22512 – 90.5mm diameter
Fits 1 1/4" and 1 1/2" PU225 / SPU225 valves

22520 – 107.5mm diameter
Fits 2" PU225 / SPU225 valves

Seal Materials & Temperature

NBR: -15°C to +80°C
EPDM: -5°C to +130°C
FKM (Viton): -10°C to +150°C
HNBR: -40°C to +150°C

Suitable Valve Series

Designed for Shako:
PU225 brass 2/2 way solenoid valves
PU225A normally closed valves
PU225AN normally open valves
SPU225 stainless steel 2/2 way valves
SPU225A normally closed valves
SPU225AN normally open valves

Discontinued Product

This diaphragm-only spare is now discontinued and available while remaining stocks last.

For servicing and overhaul, use the replacement ZGPU225 full seal kit, which provides the appropriate service components rather than the diaphragm alone. Your current ZGPU225 range covers NBR, EPDM, FKM and HNBR versions across the same main valve size groups. 

Typical Applications

PU225 valve maintenance
SPU225 valve maintenance
Solenoid valve repair
Preventative maintenance
Replacement of worn diaphragms
Industrial valve servicing
Water, air and fluid control systems

Technical Specification

Product Type: Replacement diaphragm
Manufacturer: Shako Co Ltd
Series: PU225 / SPU225
Valve Type: 2/2 way pilot operated
Valve Functions: Normally closed / normally open
Valve Sizes: 3/8" to 2"
Diaphragm Sizes: 40mm, 66mm, 90.5mm, 107.5mm
Materials: NBR, EPDM, FKM (Viton), HNBR
Body Compatibility: Brass / stainless steel
Spare Type: Diaphragm only
Status: Discontinued – limited stock
Replacement: ZGPU225 full seal kit 

Related Products & Categories


Parts & Accessories

PU225 Brass Solenoid Valves

SPU225 Stainless Solenoid Valves
View Technical Specification

Technical Specification

Brand: Shako Co Ltd

Model: 225-diaphragm

Width: 80.00 mm

Height: 10.00 mm

Depth: 80.00 mm

Weight: 0.25 kg

Function: 2/2 Failsafe Closed

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, 3.5 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: EPDM, HNBR, NBR, FKM (Viton)

Media: Air, Fluid (Non Aggressive), Fluid (Slight Acid/Alkali), Gases (Non Aggressive), Gases (Slight Acid/Alakli), Oils + Fuels 50cSt Max, Water, Water (RO/Pure/Demin)

Spares (Coils, Connectors, Seals): Seals

Found in these Categories

Shako 225 series Diaphragm for Brass/StSt 2/2 Way Solenoid Valve

£7.08 incl. VAT £5.90 ex. VAT

Brand: Shako Co Ltd

Model: 225-diaphragm

Stock: 532 in stock

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