Engineering Operation & Maintenance Original > Series METAL Pumps > Simplify your process WIL-10260-E-02REPLACES EOM T4 & A4M 4/05 size="-4">

CAUTION: NOTE: When installing PTFE diaphragms, it is impor-tant to tighten outer pistons simultaneously (turning in opposite directions) to ensure tight fit. Blow out air line for 10 to 20 seconds before attaching to pump to make sure all pipe line debris is clear. Use an in-line air filter. A 5 (micron) air filter is recommended. NOTE: Tighten clamp bands and retainers prior to instal-lation. Fittings may loosen during transportation. NOTE: CAUTION: Before starting disassembly, mark a line from each liquid chamber to its corresponding air chamber. This line will assist in proper alignment during...

O-RINGSMODELVALVE SEATVALVE BALLSDIAPHRAGMSAIR VALVECENTER BLOCK OR CENTER SECTIONAIR CHAMBERS OR CENTER SECTIONWETTED PARTS & OUTER PISTONAIR SYSTEM BASE TYPESPECIALTYCODE > (if applicable) AIR SYSTEM BASE TYPE DIAPHRAGMS VALVE BALL A = ACCU-FLOT = TURBO-FLOٙ BNS = BUNA-N (Red Dot) BNU = BUNA-N, ULTRA-FLEX (Red Dot) EPS = EPDM (Blue Dot) EPU = EPDM, ULTRA-FLEXٙ (Blue Dot) FSS = SANIFLEX [Hytrel BN = BUNA-N (Red Dot) EP = EPDM (Blue Dot) FS = SANIFLEXٙ [Hytrel > WETTED PARTS & OUTER PISTON (Cream)]NE = NEOPRENE (Green Dot) PU = POLYURETHANE (Brown) TF = PTFE (White) VT = VITON AA = ALUMINUM /...

The Wilden diaphragm pump is an air-operated, positive displacement, self-priming pump. These drawings show the flow pattern through the pump upon its initial stroke. It is assumed the pump has no fluid in it prior to its initial stroke. > FIGURE 1 The air valve directs pres-surized air to the back side of diaphragm A. The compressed air is applied directly to the liquid column separated by elas-tomeric diaphragms. The diaphragm acts as a separation membrane between the compressed air and liquid, balanc- ing the load and removing mechani-cal stress from the diaphragm. The compressed air moves...

3 /h (15 scfm) air consumption. (See dot on chart.) Flow rates indicated on chart were determined by pumping water.For optimum life and performance, pumps should be specified so that daily operation parameters will fall in the center of the pump performance curve. Caution: Do not exceed 8.6 bar (125 psig) air supply pressure. > 3 /h (20 scfm) air consumption. (See dot on chart.) Flow rates indicated on chart were determined by pumping water.For optimum life and performance, pumps should be specified so that daily operation parameters will fall in the center of the pump performance curve. Caution:...

3 /h (15 scfm) air consumption. (See dot on chart.) Flow rates indicated on chart were determined by pumping water.For optimum life and performance, pumps should be specified so that daily operation parameters will fall in the center of the pump performance curve. Caution: Do not exceed 8.6 bar (125 psig) air supply pressure. > 3 /h (30 scfm) air consumption. (See dot on chart.) Flow rates indicated on chart were determined by pumping water.For optimum life and performance, pumps should be specified so that daily operation parameters will fall in the center of the pump performance curve. Caution:...

Caution: Do not exceed 8.6 bar (125 psig) air supply pressure. Flow rates indicated on chart were determined by pumping water.For optimum life and performance, pumps should be specified so that daily operation parameters will fall in the center of the pump performance curve. > WILDEN PUMP & ENGINEERING, LLCWIL-10260-E-02 8 >

Suction lift curves are calibrated for pumps operating at 1,000' (305 m) above sea level. This chart is meant to be a guide only. There are many variables which can affect your pump֒s operating characteristics. The number of intake and discharge elbows, viscosity of pumping fluid, elevation (atmospheric pressure) and pipe friction loss all affect the amount of suction lift your pump will attain. Suction lift curves are calibrated for pumps operating at 1,000' (305 m) above sea level. This chart is meant to be a guide only. There are many variables which can affect your pumps operating characteristics....

The Model T4 Metal pump has a 38 mm (1-1/2") inlet and 32 mm (1-1/4") outlet and is designed for flows to 307 lpm (81 gpm). The T4 Metal pump is manufactured with wetted parts of aluminum, cast iron, or stainless steel. The T4 Metal pump comes with either a center block or center section. The T4 center block is constructed of aluminum or nickel-plated aluminum. The T4 center section comes in polypropylene. The air distribution system consists of a brass air valve body, aluminum piston, Glyd֙ rings and a bronze center section bushing. A variety of diaphragms, valve balls, valve seats, and o-rings...

Accu-Flo pumps: NOTE: In the event of a power failure, the shutoff valve should be closed, if the restarting of the pump is not desirable once power is regained. Accu-Floٙ pumps function with solenoid valves and require an electrical control circuit to supply pulses. Under normal operating conditions, the control circuit is sufficient for starting and stopping the pump. However, the shut off valve (user supplied) installed in the air supply line can be used to stop the pump if necessary. Therefore, it shoud be located far enough away from the pumping equipment such that it can be reached safely...

In Accu-Floٙ pump models, the standard air valve is replaced with a two position, four-way solenoid valve that has a single operator and spring return. The valve is internally air piloted for longer coil and operator life.When the solenoid is unpowered, one air chamber is pres-surized with air, while the opposite chamber is exhausted. When electric power is applied, the solenoid shifts, and the pressurized air chamber is exhausted while the opposite chamber is pressurized. By alternately applying and remov-ing power, the solenoid-operated pump runs like a standard Wilden pump.The speed of the...

OPERATION: The speed of the pump is controlled electrically. Since each stroke is controlled by an electrical signal, the pump is ideal for batching and other electrically controlled dispensing applications.Although the speed of the pump is controlled electrically, the air pressure is important. Air pressure displaces the fluid, and if the pressure is insufficient to complete the physical stroke before an electronic impulse signals the pump to shift, the stroke will not be completed, and the displacement per stroke will be reduced. This does not harm the unit in any way, but it may cause inaccuracy...