0904.009 model NBR Buna Rubber membrane Diaphragm Pump

0904.009 model NBR Buna Rubber membrane Diaphragm Pump

Model 0904.009 is listed as a replacement NBR rubber membrane for diaphragm pumps. Match the formed profile, centre connection and outer sealing rim to the pump drawing or original sample. FKM alternatives and hydraulic accumulator applications require a separately confirmed design; other pump model references do not establish interchangeability.

• Material Composition:

NBR (Buna-N) rubber; specify compound and hardness for the pumped fluid and flexing duty.

Confirm whether the ordered 0904.009 membrane requires fabric reinforcement and its specified construction.

PTFE-facing requests require review of bonding, flexing and chemical compatibility before quotation.

• Performance Characteristics:

Operating pressure and differential pressure must be confirmed for the complete pump and selected membrane.

Confirm continuous and peak fluid temperatures against the selected rubber compound.

Provide the exact oil, fuel or water-based formulation, additives and concentration for compatibility review.

Service life depends on stroke, cycling speed, pressure, fluid and installation; agree test conditions for any cycle-life requirement.

• Physical Dimensions:

Original size reference: 14 mm x 134.5 mm x 13.5 mm; confirm dimension order, measuring points and tolerances on the drawing.

Original weight reference: 180 g; confirm the ordered construction and inspection requirement.

Match the centre attachment and clamped rim to the pump assembly; confirm any holes or inserts against the original part.

0904.009 Pump Membrane: Profile and Mounting Checks

Send the pump manufacturer, full model and a drawing or clear photographs of both sides of the removed membrane. Keep the 0904.009 identifier with the inquiry; a similar-looking centre or rim does not confirm an equivalent fit.

For the listed 14 x 134.5 x 13.5 mm reference, identify which dimension describes the centre opening, outside diameter or formed height before ordering. Check the sealing bead, centre seating surface and membrane travel against the mating components.

For replacement procurement, include fluid composition, operating temperature, pressure differential, stroke and quantity. Request NBR or a reviewed alternative by compound specification, and confirm sample fit before a production order.