Santoprene Diaphragm 90533-B WaterJet Cutting Machine Parts

The Santoprene Diaphragm 90533-B is a premium-grade flexible sealing membrane designed for use in low-pressure diaphragm pumps, accumulator systems, and hydraulic control units within waterjet cutting machines and industrial fluid systems. Its primary function is to separate hydraulic oil and water chambers, ensuring leak-free operation, pressure consistency, and long-lasting durability under demanding working conditions.

Made from high-performance Santoprene thermoplastic elastomer (TPE), the 90533-B diaphragm combines the elasticity of rubber with the chemical and thermal stability of plastic. This advanced material offers exceptional resistance to fatigue, chemical degradation, and temperature variation, maintaining flexibility and sealing integrity across a wide operating range (from -40°C to +120°C). The diaphragm’s reinforced core and precision-molded geometry ensure consistent deflection under repeated pressure cycles, minimizing wear and extending pump life.

The Santoprene Diaphragm 90533-B is fully compatible with KUNDA, KMT, FLOW, and OMAX waterjet systems, making it a reliable OEM-equivalent or aftermarket replacement part. It is commonly used in diaphragm pumps (e.g., 205-20-6661), pressure regulators, and intensifier control systems, where consistent fluid separation and pressure balance are critical.

This diaphragm is ideal for metal cutting, stone fabrication, ceramic processing, and composite material production, offering stable performance, low maintenance, and long service life in continuous-duty environments.