Graco Double Diaphragm Pump, 2 Inch, 568 L/min, Made in USA - DF3777

Husky Double Diaphragm Pump

The Graco Husky 2150 (DF3777) is a heavy-duty, air-operated double diaphragm (AODD) pump engineered to deliver maximum reliability and top-tier efficiency for high-volume fluid transfer. As part of Graco's industry-leading Husky series, this 2-inch pneumatic pump is built specifically to handle demanding industrial applications while keeping energy costs and maintenance downtime to an absolute minimum. Built to withstand harsh workshop and industrial environments, the DF3777 features a rugged, all-aluminum construction across both its fluid section and center body block. To ensure superior sealing and chemical compatibility with petroleum-based fluids, oils, water, and select lubricants, the pump is fully outfitted with premium Buna-N (Nitrile) diaphragms, ball valves, and seats.

The Husky 2150 boasts an advanced fluid dynamics design that makes it up to 40% more efficient than competing pumps in its class. It delivers a massive maximum free flow rate of 150 GPM (568 L/min) and can easily handle suspended solids up to 0.25 inches (6.3 mm) without clogging. Operating at balanced maximum air and fluid pressures of 120 psi (8 bar), it provides smooth, continuous fluid delivery even across long piping configurations. Equipped with an innovative, stall-free, low-pulsation air valve, the Husky 2150 provides exceptionally rapid and reliable changeovers without requiring external line lubrication. The modular air valve is designed with fewer moving parts and is externally accessible, allowing your team to perform routine maintenance or quick servicing effortlessly without having to disconnect or dismantle the main diaphragm pump body.

Key Features & Benefits:

• Dual-Aluminum Construction: Features an aluminum fluid section and aluminum center block engineered to provide extreme structural strength and high resistance to chemical corrosion.

• All-Buna-N Sealing Materials: Outfitted with premium Buna-N (Nitrile) diaphragms, ball valves, and seats to securely and safely handle heavy industrial oils, water, and lubricants.

• High-Capacity Bulk Transfer Output: Supports an industry-leading maximum flow rate of 150 GPM (568 L/min) combined with 2-inch female NPT end-port manifold connections for rapid liquid evacuation.

• Balanced Operating Pressures: Runs at matching maximum air and fluid pressures of 120 psi (8 bar) to guarantee a perfectly stable, safe, and balanced internal workload.

• Advanced Fluid Dynamics Efficiency: Engineered with an optimized internal design that achieves up to 40% higher energy efficiency and delivers a 5X longer diaphragm lifespan compared to competing pumps.

• Stall-Free Air Valve System: Features a low-pulsation modular air valve that ensures smooth, reliable, and rapid changeovers during continuous operation without requiring external line lubrication.

• Solid Passage Capability: Designed with wide internal clearances to allow the safe passage of small debris and suspended particulates up to 0.25 inches (6.3 mm) without clogging.

• Rapid External Maintenance: Outfitted with an externally accessible air valve and fewer components to allow quick servicing and routine maintenance without dismantling the main pump body.

• Heavy-Duty Air Handling: Utilizes a 1/2-inch NPT female air intake and a 3/4-inch NPT exhaust to handle airflow smoothly up to a maximum consumption of 175 SCFM.

• Reliable Cycle Delivery: Achieves a maximum continuous and intermittent cycle rate of 145 CPM (Cycles Per Minute) to keep demanding industrial assembly lines moving steadily.

• Expanded Material & Plumbing Flexibility: Fully compatible with standard 2-inch ANSI end-porting and an expansive range of fluids to handle endless industrial applications seamlessly.

• Epoxy-Coated Air Section: Outfitted with a durable protective epoxy coating on the air motor housing to withstand corrosion and wear in harsh environmental conditions.

• American Industrial Craftsmanship: Proudly engineered and manufactured in the United States (USA), ensuring top-tier Graco production standards and premium material quality.