5-1/2 in Rectangular Siphon Diaphragm

Description

5½” Rectangular Siphon Diaphragm Heavy-duty 5½-inch rectangular siphon diaphragm with 3/8-inch centre hole — designed for siphon pumps, diaphragm pumps, and fluid transfer equipment requiring a rectangular sealing membrane for reliable fluid movement in industrial, agricultural, and general maintenance applications. Key Benefits 5½-inch rectangular form factor 3/8″ centre hole for pump shaft and fitting alignment Flexible rubber construction for consistent seal and stroke Rounded corner profile for clean pump body seating Replacement-grade quality Smooth, uniform face for full seating and sealing Lightweight and easy to install Suitable for a range of fluid transfer applications Cost-effective replacement part Compatible with rectangular diaphragm pump configurations Technical Specifications Type: Siphon pump diaphragm Shape: Rectangular with rounded corners Size: 5½ inches Centre Hole: 3/8 inch Material: Rubber Colour: Off-white Application: Siphon pumps, diaphragm pumps, fluid transfer equipment Features Rectangular rubber diaphragm for direct drop-in replacement in rectangular pump body configurations Rounded corner profile for clean fitment against pump housing seating surfaces Uniform thickness across the full diaphragm for balanced, consistent pump stroke Smooth face surfaces for complete seating against pump body mating surfaces 3/8″ centre hole sized for standard pump shaft and mounting hardware Flexible rubber material accommodates pump stroke deflection without cracking or fatiguing Chemical-resistant composition suitable for water, light oils, and general-purpose fluid transfer Perfect For Siphon pump diaphragm replacement Rectangular diaphragm pump maintenance and servicing Fluid transfer pump repair Water transfer equipment Agricultural sprayer pump servicing Chemical dosing pump maintenance Industrial fluid handling equipment General pump maintenance and repair Workshop and field pump servicing Preventive maintenance stocking Key Features Rectangular Form Factor: Sized and shaped to fit standard rectangular siphon pump bodies — not interchangeable with round diaphragm configurations 5½-Inch Size: Covers standard rectangular pump diaphragm dimensions for direct replacement without trimming or modification 3/8″ Centre Hole: Pre-punched centre bore fits standard pump shaft and mounting bolt configurations for fast, tool-minimal installation Flexible Rubber Material: Provides the elastic deformation required for effective diaphragm pump stroke while maintaining a consistent seal throughout the pump cycle Uniform Construction: Even thickness and flat face profile ensures full contact with pump body seating surfaces, preventing bypass and maintaining pump efficiency Chemical Resistance: Rubber compound offers resistance to water, mild chemicals, and light petroleum-based fluids common in siphon and transfer pump applications Application Instructions Ensure pump is disconnected from its power or drive source before servicing Drain and relieve any residual pressure in the pump and connected lines Remove pump cover or diaphragm housing bolts and carefully separate the pump body Remove the worn or damaged diaphragm, noting its orientation Inspect pump body seating surfaces for damage or debris and clean thoroughly Position the new 5½” rectangular diaphragm with the centre hole aligned to the pump shaft or mounting bolt Align the diaphragm corners to the pump housing corners — ensure no folding or uneven seating Reassemble pump housing and tighten cover bolts evenly in a cross pattern Reconnect pump to drive source and run briefly to check for leaks or bypass Replace diaphragm at regular maintenance intervals or at first sign of cracking, hardening, or reduced pump output

Key specifications

• Type: Siphon pump diaphragm.; Shape: Rectangular with rounded corners.; Size: 5-1/2 inches.; Centre Hole: 3/8 inch.; Material: Rubber.; Colour: Off-white.; Application: Siphon pumps, diaphragm pumps, fluid transfer equipment.