Vacuum Aspirators

Die-cast white metal body with integrally cast side arm, plated. Brass nozzle; cast aluminum baffle tube. Richards Filter Pumps offer excellent performance for vacuum filtrations under both high and low water pressure conditions. The pumps feature a ball-type, positive-action valve in the suction tube which prevents water backflow if the pressure is reduced. Water inlet: 3/4" NPS (1" drain; 1/8" vacuum). Length: 12½" (318mm) Shipping Weight: 3 lbs. (1.4 kg).
Photo of Filter Pump Coupling, 3/8" NPS Brass
Similar to F2848 except used on filter pumps with ⅜" NPS tread. Brass construction.
Photo of Smooth Filter Pump Coupling
For smooth faucets. Bottom has 3/8" NPT thread. Brass and plastic construction.
Photo of Threaded Filter Pump Coupling
For use with Aspirator Filter Pumps with 3/8" NPT thread. Upper end is treaded to fit ¾" faucets. Brass construction.
Stainless steel short, swirling-type filter pumps offer excellent performance for vacuum filtrations under both high and low water pressure conditions. The pumps feature a ball-type, positive-action valve in the suction tube which prevents water backflow if the pressure is reduced. Plated; with serrated tail and side arm. Water inlet is 3/8" NPT tapered. Total length 3" (76mm), Shipping Weight: 3 lbs. (1.4 kg).
Photo of Short Style Filter Pump
Short, Swirling-type filter pumps offer excellent performance for vacuum filtrations under both high and low water pressure conditions. The pumps feature a ball-type, positive-action valve in the suction tube which prevents water backflow if the pressure is reduced. Plated; with serrated tail and side arm. Water inlet is 3/8" NPT tapered. Total length 3" (76mm), Shipping Weight: 3 lbs. (1.4 kg).
Photo of Chapman Type Filter Pump
Chapman Swirling-type Filter Pumps offer excellent performance for vacuum filtrations under both high and low water pressure conditions. The pumps feature a ball-type, positive-action valve in the suction tube that prevents water backflow if the pressure is reduced. Plated; designed for greater air entrainment capacity. Water inlet is 3/8" NPT; length is 5-3/8" (137mm). Shipping Weight 4 lbs. (1.8 kg).
Photo of Vacuum Aspirator Pump
This is a high-density polyethylene aspirator pump that operates on water pressures above 11 psi (7584 N/m2). The integral check valve resists corrosive filtrates and fumes. A quick-disconnect hose fitting accepts 6.4mm to 9.5mm (1/4" to 3/8") I.D. tubing. The male thread faucet connection is 9.5mm (3/8") I.D. Maximum attainable vacuum is 696mm Hg (27.4") with a flow of 6 liters (1.5 gal) per minute.
Photo of Nalgene 6140 Faucet Aspirator Vacuum Pump-Polypropylene

Attach the Nalgene 6140 Polypropylene Faucet Aspirator Vacuum Pump directly to sink faucets for vacuum draw. Attaches to a standard faucet with 3/8″ NPT connecting thread for easy installation.  It can draw 11.5L air per minute at a water flow rate of 6.5L per minute. It operates efficiently with water pressures as low as 7.5 psig for minimum water consumption. Ultimate achievable vacuum of 28.5″ (724mm) Hg. It comes with an integral check valve that prevents loss of vacuum when water source is disrupted and prevents backflow.