Complete Item Specifications

Fisher specifically marks the diaphragm as a recommended spare part. The same 10B3069X012 diaphragm is also documented in the 627F main regulator and applicable 627B-series configurations.

Complete Description

For sale is a Fisher / Emerson 10B3069X012 replacement diaphragm for compatible Fisher 627 Series pressure-reducing regulators.

This genuine Fisher service component is manufactured from Nitrile (NBR) and serves as the regulator's pressure-responsive diaphragm. Fisher identifies it as Key 23 in the regulator parts breakdown and lists it as a recommended spare component.

For the standard Type 627 and 627M, part 10B3069X012 is specified for configurations equipped with an aluminum or ductile-iron diaphragm case. Regulators with steel cases or certain relief/high-pressure variants can require different diaphragm part numbers, so buyers should verify the regulator type and construction before ordering.

Features

• Genuine Fisher / Emerson replacement component
• Exact MPN 10B3069X012
• Replacement diaphragm for compatible Fisher 627 regulators
• Nitrile (NBR) construction
• Fisher parts diagram Key No. 23
• Recommended spare/service part
• Designed to restore proper pressure-responsive regulator operation
• Compatible with applicable aluminum/ductile-iron diaphragm-case configurations
• Suitable for regulator maintenance and rebuilding when the exact part number matches

Applications

Designed for maintenance, rebuilding and repair of compatible Fisher 627 Series pressure-reducing regulators.

The part is directly documented for Type 627 and 627M regulators with aluminum or ductile-iron diaphragm cases. Fisher also specifies 10B3069X012 in certain 627F, 627B and 627W configurations.

Compatibility note: Do not purchase solely by regulator series. Fisher lists different diaphragm numbers depending on regulator model, relief configuration, case material and elastomer. For example, steel-case Type 627/627M units use a different diaphragm number.