D52911 PTFE Diaphragm Replacement Parts for Graco 716 Air Pump & Husky 515 1/2 Inch Diaphragm Pump 190148 189536 108839

The Graco Husky Series air-operated double diaphragm (AODD) pumps represent industry-leading solutions for fluid transfer, designed to provide unmatched reliability, efficiency, and minimal maintenance requirements. These pumps are available in a variety of sizes, ranging from 3/8 inch to 3 inches, offering flow rates between 7 gallons per minute (GPM) and 260 GPM. This versatility makes the Husky series ideal for applications spanning from light chemical dosing to demanding heavy industrial fluid transfer tasks.

Central to the performance of every Husky pump is its advanced diaphragm system. Customers can choose from multiple diaphragm materials to ensure compatibility with virtually any fluid type. Options include PTFE (Teflon®), Santoprene™ (GE – Graco Engineered Thermoplastic), Nitrile (Buna-N), and Viton® (FKM). Additionally, Graco supplies both individual diaphragms and comprehensive fluid section repair kits that contain diaphragms, balls, seats, O-rings, and center shafts. This ensures a complete and dependable pump rebuild when maintenance is required.

The Husky series incorporates several key innovations that set it apart in the market. Stall-free low pulsation air valves provide smooth and rapid changeover during operation, enhancing overall pump performance. The one-piece center sections are designed to eliminate air leaks and reduce the need for frequent maintenance. Moreover, these pumps boast up to five times longer diaphragm life compared to other AODD pumps within the same category. Select models of the Husky series also demonstrate efficiency improvements of up to 40%. To top it off, the air valves can be serviced externally, meaning the pump does not have to be uninstalled for vital maintenance tasks.

The Stall-Free Low Pulsation Air Valve ensures smooth and rapid changeover, significantly reducing fluid shock and extending the life of the diaphragm. This feature enhances overall pump performance and reliability.

Featuring a One-Piece Center Section, the design eliminates air leaks, resulting in more efficient operation and simplified maintenance routines. This construction helps maintain consistent pump function over time.

The Four-Bolt Fluid Cover Joint Design provides even sealing pressure, ensuring leak-free operation throughout extended use. This robust design contributes to the pump’s durability and dependability.

Without any Mechanical Seals, the pump avoids a common failure point found in many other pump types, reducing downtime and maintenance costs.

Quiet Operation is achieved with noise levels running at less than 85 dBa, and an optional remote muffler can be added to reduce noise even further, making the pump suitable for noise-sensitive environments.

Multiple Porting Options, including center and end port configurations, offer installation flexibility to suit a variety of system layouts.

The pump is ATEX and CE Certified, ensuring it is suitable for use in hazardous environments, meeting stringent safety and compliance standards.

Lube-Free Operation minimizes maintenance requirements and eliminates the risk of oil contamination, making it an ideal choice for clean and efficient fluid handling.

PTFE (Teflon®) Diaphragms offer excellent chemical resistance, making them suitable for aggressive solvents, acids, and caustic substances. This ensures durability in harsh chemical applications.

Santoprene™ (GE) Diaphragms are Graco Engineered Thermoplastics that provide outstanding wear resistance and flexibility, ideal for general-purpose applications where durability and adaptability are required.

Nitrile (Buna-N) Diaphragms provide superior resistance to oil and fuel, making them well-suited for industrial environments involving hydrocarbons.

The Two-Piece PTFE/EPDM Designs, available for select models, combine chemical resistance with enhanced flexibility, offering a versatile solution for challenging conditions.

Overmolded Diaphragm Designs extend the service life and improve sealing performance, ensuring reliable operation over prolonged use.

The Complete Fluid Section Rebuild kits include all necessary components such as diaphragms, balls, seats, O-rings, and the center shaft where applicable, allowing for thorough maintenance and refurbishment.

All kits contain Genuine OEM Parts made from factory-specified materials, guaranteeing the proper fit and maximizing service life for dependable pump performance.

Application-Matched Materials are available, with select kits tailored to meet specific fluid compatibility requirements, ensuring optimal performance for diverse applications.

This sector involves handling various aggressive chemicals such as acids, caustics, and solvents. The processes require equipment that can resist corrosion and withstand harsh chemical environments.

Industries involved in oil and fuel transfer manage fluids including motor oil, hydraulic fluids, diesel, and various fuel oils. Reliable and safe transfer systems are essential to prevent leaks and ensure operational efficiency.

The automotive sector commonly deals with fluids such as antifreeze, windshield washer fluid, gear oil, and coolants. Proper handling and transfer of these liquids are crucial for vehicle maintenance and repair tasks.

Industrial manufacturing applications include the transfer of water, wastewater, detergents, and various process fluids. Equipment used must be versatile and capable of handling a wide range of substances.

In mining and construction, managing slurries, abrasive fluids, and dewatering processes is common. Robust and durable equipment is needed to handle the challenging conditions in these industries.

Sanitary fluid transfer is critical in food and beverage production, where select stainless steel models are employed to ensure hygiene and prevent contamination during processing.

Pharmaceutical applications require pure chemical transfer. Equipment with PTFE wetted parts is often used to maintain purity and prevent chemical reactions during handling.

In agriculture, fluids such as fertilizers, pesticides, and liquid feed are transferred. Specialized equipment is necessary to handle these substances safely and effectively.