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Lancer 3.0 oz/sec Ceramic Valve Piston Assembly for GMV - 81-0274-01

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Product details

Management number 233121210 Release Date 2026/06/21 List Price $5.54 Model Number 233121210
Category

The Lancer Ceramic Piston Assembly (81-0274-01) is the internal core of a 3.0 oz/sec GMV valve. It consists of two diamond-ground ceramic disks that slide against each other to open and block the fluid path. Unlike standard rubber-seated pistons, the ceramic design is impervious to the abrasive minerals and chemicals found in some water supplies, ensuring zero flow-rate drift over time.

Symptoms of Failure: If the valve is 'leaking through' (dripping from the nozzle when not in use), the ceramic disks are likely cracked or fouled with debris. Another sign of failure is a 'sticking' lever where the flow doesn't stop immediately after release. Replacing the piston restores the precise 'mechanical snap' shut-off and stable brix ratios.

Technician’s Note: Never drop these pistons on a hard floor. The ceramic disks are extremely brittle and will shatter on impact. When installing, ensure the valve body is free of any sand or mineral grit; a single grain of sand between the disks will cause a permanent leak.Technical Specifications:
  • Manufacturer: Lancer
  • Application: Internal Valve Flow Control
  • Technology: Diamond-Ground Ceramic Disks
  • Compatibility: Lancer 3.0 GMV Series

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