Crispaire Diaphragm Metering Pump for Chemical Laboratory Dosing 30 GPD (4.72 LPH) 100 PSI Adjustable Flow PVC Liquid End with Ceramic Ball Valves Includes Suction & Discharge Tubing 3/8" Ports

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• PRECISION CHEMICAL & LABORATORY DOSING PUMP: Engineered for accurate chemical metering in laboratories, water analysis, industrial processes, and small-scale treatment systems. Delivers adjustable flow up to 30 GPD (1.25 GPH / 4.72 LPH) with consistent stroke accuracy.
• FULLY EQUIPPED OUT OF THE BOX – NO ADDITIONAL PARTS NEEDED: Complete kit includes: 0.38" (9.5mm) flexible PVC suction tubing, stiff PE discharge tubing, strainer with tube weight, bleed valve assembly, back check valve, and injection fitting. Ready to install and operate immediately.
• ADJUSTABLE FLOW CONTROL & EASY MAINTENANCE: Equipped with precision output dial for fine-tuning dosage. Modular design allows quick replacement of diaphragm, valves, and seats. Designed for indoor use; not for flammable liquids.
• BUILT TO HANDLE PRESSURIZED SYSTEMS UP TO 100 PSI (7 BAR): Robust diaphragm design ensures reliable operation against high backpressure. Ideal for injecting into pressurized lines, RO systems, or closed-loop chemical feeding applications.
• DURABLE & LOW MAINTENANCE: A sealed gear train and a specially lubricated motor/gear shaft extend pump life and reduce maintenance needs in demanding environments.