421944028581 Genuine Gaggia Safety Valve / Pump Bypass – 11 Bar OPV

421944028581 Genuine Gaggia Safety Valve / Pump Bypass – 11 Bar OPV

Maintain correct brewing pressure and protect your espresso machine with the Genuine Gaggia Safety Valve / Pump Bypass 421944028581.

This OEM over-pressure valve (OPV) is factory preset to 11 bar and regulates the pump pressure during extraction. By controlling excess pressure, the valve ensures consistent espresso extraction, smoother pump operation, and protection of internal components.

Designed for Gaggia espresso machines, this genuine replacement valve helps restore correct brewing performance and maintain optimal pressure levels for high-quality espresso.

⚙️ Key Features

✔ Genuine Gaggia OEM replacement part
✔ Factory preset 11 bar over-pressure valve (OPV)
✔ Regulates pump pressure during espresso extraction
✔ Protects pump and internal components from over-pressure
✔ Improves espresso consistency and crema quality
✔ Direct replacement for compatible Gaggia machines

🔧 Part Number

421944028581

☕ Application

Used as a safety valve / pump bypass (OPV) in espresso machines to regulate brew pressure and prevent excessive pump load.

Preset pressure: 11 Bar

🧩 Compatible Machines

Designed for Gaggia espresso machines, including:

• Gaggia Classic
• Gaggia Classic Pro

⚠️ Compatibility may vary depending on machine revision and internal configuration.

If unsure, send us your coffee machine model number and we will confirm compatibility.

🛠 Common Problems This Part Fixes

Replacing the safety valve can resolve issues such as:

• Incorrect or unstable brew pressure
• Over-pressure causing leaks
• Pump working harder than normal
• Inconsistent espresso extraction
• Excessive pump noise during brewing

A correctly functioning OPV helps maintain the ideal pressure range for espresso extraction.

📦 Package Includes

• 1 × Genuine Gaggia Safety Valve / Pump Bypass
(Part Number 421944028581, preset 11 bar)

🛠 Installation Notes

• Ensure the machine is powered off and fully depressurised before installation
• Access may require removal of the top machine cover
• Check pump hose connections are secure after installation
• Professional installation recommended if unsure

🚚 Shipping

Fast dispatch from Australia 🇦🇺
Secure packaging with tracking provided on all orders.

✅ Why Buy From Us

✔ Genuine appliance and coffee machine spare parts
✔ Australian stocked inventory
✔ Fast dispatch and reliable delivery
✔ Expert compatibility support

🔎 SEO Keywords

Gaggia safety valve
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📄 Meta Description (SEO – 160 characters)

Genuine Gaggia safety valve pump bypass 421944028581 preset to 11 bar. Suits Gaggia Classic and Classic Pro espresso machines. OEM replacement with fast AU shipping.