VBM Over Pressure Valve (OPV) 1/8 BSPM/BSPF - Domobar Espresso Machine Parts

VBM Over Pressure Valve (OPV) - Genuine Replacement Part

Genuine VBM over pressure valve (OPV) designed to regulate brewing pressure in your Vibiemme espresso machine. This critical safety component ensures consistent extraction pressure and protects your machine from damage.

Technical Specifications

• Inlet: 1/8 BSPM (British Standard Pipe Male)
• Outlet: 1/8 BSPF (British Standard Pipe Female)
• Part number: VIBIEMME ASSBYPASS
• Manufacturer: VBM (Vibiemme)
• Country of origin: Italy
• Weight: 0.2kg

Compatible Models

This OPV fits the following VBM Vibiemme espresso machines:

• Domobar
• Domobar Digitale
• Domobar Junior 2B
• Domobar Junior HX
• Domobar Super
• Domobar Super Elettronica HX
• Domobar Super Manuale HX

What It Does

The over pressure valve (also called bypass valve) is a critical component that regulates brewing pressure by diverting excess water back to the tank when pressure exceeds the set point. This ensures:

• Consistent brewing pressure (typically 9 bar)
• Protection against over-extraction and bitter espresso
• Extended pump and machine lifespan
• Stable extraction across all shots

When to Replace

Replace your OPV if you experience: inconsistent shot quality, pressure gauge reading too high or fluctuating, pump running continuously, or water returning to tank during brewing.

Genuine VBM Part

This is a genuine Vibiemme component manufactured in Italy to exact factory specifications, ensuring perfect fit and reliable performance.

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