Air Operated Diaphragm Pumps

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Air operated diaphragm pumps are used in chemical processing for transferring corrosive and abrasive fluids in wastewater treatment for handling sludges and slurries in the pharmaceutical industry... Read More

VERSA-MATIC -

Double Diaphragm Pumps

Versa-Matic air-operated diaphragm pumps have a robust leak-free bolted design which reduces maintenance downtime and are self-priming to handle solids up to 3 inches. These units provide an an ideal combination of flow, size and portability as compared to other pump models, with a maximum flow rate of 163 gpm (617 lpm). They further feature the patented Elima-Matic air valve system for a no stalling, lube-free performance and are available in 1/4 inch, 3/16 inch and 3/8 inch diameter variants on Raptor Supplies.

StyleModelHeightInlet/Outlet SizeLengthMax. Dia. SolidsWidthPrice (inc. GST)
AE4AA2R22018"1-1/2" / 1-1/4"11.5"3/16"14.25"A$ 4642.92
BE2AA2R220C-ATEX26.75"2"13.5"1/4"16.5"A$ 6896.08
CE3AA2R220C-ATEX32"3"15"3/8"20"A$ 9285.56
SANDPIPER -

Double Diaphragm Pumps

Sandpiper double diaphragm pumps (also called AODD pumps) are operated by air / natural gas and used for transporting sludges, slurries, abrasives and shear sensitive fluids. The air pressure in these pumps acts along the entire surface of the diaphragm, keeping it balanced while pumping, that substantially extends pump life as compared to that of mechanically operated diaphragm pumps. Ideal for on-demand intermittent jobs, these AODD pumps can be safely dry ran & deadheaded without causing any damage to the pump or system. Self-priming and high vacuum capable, Sandpiper pumps can continuously pump fluids even if situated out of the pit and offer a maximum suction lift of 9.8 m. Also, their flooded suction feature allows for outdoor mounting of the pump & is mostly preferred for pumping viscous fluids. As they are safely submersible and utilise compressed air as their power source rather than electricity, these pumps are suitable for use in hazardous areas. Offering flow rates of 4, 42, 106 and 135 GPM, Sandpiper double diaphragm pumps are available in both NPT and flange-type connections. A screened inlet option is available for making the filtration process more efficient when the pumps are submerged under water, where sediments and debris are very common.

StyleModelInlet/Outlet SizeAgency ComplianceBall MaterialLengthMax. Dia. SolidsMax. FlowMax. Operating PressureMax. Temp.Price (inc. GST)
AS1FB1ABWANS0001"-Buna10.375"1/4"-125 psi180 Degrees FA$ 4226.18
BG1FB1STTXNSX001"-PTFE10.375"1/4"-100 psi220 Degrees FA$ 9166.17
CSB1 SS5A1"-Santoprene(R)13 9/32"1/4"42 GPM125 psi275 Degrees FA$ 4119.65
AS1FB1A1WANS0001"-Santoprene(R)10.375"1/4"-125 psi180 Degrees FA$ 4809.00
DS1FB3PBPPNI0001"-Buna11.625"1/4"-100 psi180 Degrees FA$ 4894.65
DS1FB3P2PPNI0001"-PTFE11.625"1/4"-100 psi180 Degrees FA$ 6747.20
DS1FB3P1PPNI0001"-Santoprene(R)11.625"1/4"-100 psi180 Degrees FA$ 5508.12
ES1FB1I1WANS0001"-Santoprene(R)10.375"1/4"-125 psi180 Degrees FA$ 5537.55
ES1FB1I2TANS0001"-PTFE10.375"1/4"-125 psi220 Degrees FA$ 6750.57
FHDF1 DB2A1"-Buna10 13/16"1"-125 psi190 Degrees FA$ 6436.30
GS15B1I2TANS0001.5"-PTFE12 23/64"1/4"-125 psi220 Degrees FA$ 9678.90
GS15B1I1WANS0001.5"-Santoprene(R)12 23/64"1/4"-125 psi180 Degrees FA$ 8748.41
HS05B1S2TANS0001/2"-PTFE7 1/16"1/8"-100 psi220 Degrees FA$ 8076.86
IS05B2G2TXNS0001/2"-PTFE7 1/16"1/8"-100 psi220 Degrees FA$ 5610.35
JS05B2G1TXNS0001/2"-Santoprene(R)7 1/16"1/8"-100 psi275 Degrees FA$ 5116.69
KS05B1ABWANS0001/2"-Buna7 1/16"1/8"-100 psi180 Degrees FA$ 2857.87
KS05B1A2TANS0001/2"-PTFE7 1/16"1/8"-100 psi220 Degrees FA$ 4641.76
LPB 1/4 TS4CA.1/4"ATEX.jpg, EN.pngSantopreneR-1/32"5 gpm100 psi190° FA$ 3003.77
RFQ
LPB 1/4 TS4PP.1/4"EN.pngSantopreneR-1/32"5 gpm100 psi180° FA$ 1763.39
RFQ
MHDF2 DP6I2"-Santoprene(R)13.63"2"-125 psi275 Degrees FA$ 9092.27
NS20B1I1EANS0002"-Santoprene(R)12.5931/4"-125 psi275 Degrees FA$ 10028.15
OS20B1ABBANS0002"-Santoprene(R)12.5931/4"106 GPM125 psi180 Degrees FA$ 8470.48
OS20B1A1EANS0002"-Santoprene(R)12.5931/4"-125 psi220 Degrees FA$ 8808.73
P66625B-444-C2"-PTFE-1/4"172 gpm120 psi200 Degrees FA$ 20053.42
MHDF2 DP6A2"-Santoprene(R)13.63"2"-125 psi275 Degrees FA$ 9330.86
ARO -

Double Diaphragm Pumps

StyleModelMax. Dia. SolidsBall MaterialBody MaterialMax. FlowMax. Operating PressureMax. Temp.WidthConnection StylePrice (inc. GST)
A66605J-388---13.1 gpm100 psi150° F6.5"FNPTA$ 2262.77
B66M300-1EB-C1"Santoprene(R)Aluminum217 gpm120 psi200 Degrees F--A$ 11960.83
B66M300-122-C1"NitrileAluminum217 gpm120 psi180 Degrees F16"NPTA$ 12679.37
B66M150-1EB-C1/2"Santoprene(R)Aluminum80 GPM120 psi200 Degrees F--A$ 4959.37
B66M150-122-C1/2"NitrileAluminum80 GPM120 psi180 Degrees F11.5"NPTA$ 4880.96
C650719-C1/4"AcetalAluminum105 gpm50 psi180 Degrees F-NPTA$ 9114.75
D666251-EEB-C1/4"Santoprene(R)Stainless Steel172 gpm120 psi200 Degrees F-NPTA$ 16681.57
E666250-G22-C1/4"NitrileAluminum172 gpm120 psi180 Degrees F-NPTA$ 6854.36
F6662B3-311-C1/4"NeoprenePolypropylene139 gpm120 psi150 Degrees F11 15/16"FlangedA$ 12658.78
G6662B3-344-C1/4"PTFEPolypropylene139 gpm120 psi150 Degrees F11 15/16"FlangedA$ 16332.56
G6661U3-311-C1/4"NeoprenePolypropylene100 GPM120 psi150 Degrees F11 15/16"FlangedA$ 8290.22
G6661U3-344-C1/4"PTFEPolypropylene100 GPM120 psi150 Degrees F11 15/16"FlangedA$ 9937.42
H666151-24B-C1/4"Santoprene(R)Stainless Steel90 GPM120 psi200 Degrees F-NPTA$ 10716.77
H666161-244-C1/4"PTFEStainless Steel90 GPM120 psi200 Degrees F-NPTA$ 12974.79
H666150-244-C1/4"PTFEAluminum90 GPM120 psi200 Degrees F-NPTA$ 6516.07
I666150-362-C1/4"AcetalAluminum90 GPM120 psi150 Degrees F16"NPTA$ 4879.91
H666152-2EB-C1/4"Santoprene(R)Cast-Iron90 GPM120 psi200 Degrees F-NPTA$ 5843.88
J650718-C1/4"AcetalAluminum75 gpm50 psi180 Degrees F15.25"NPTA$ 5962.35
I666150-3EB-C1/4"Santoprene(R)Aluminum90 GPM120 psi150 Degrees F-NPTA$ 4814.06
K6661AJ-3EB-C1/8"Santoprene(R)Polypropylene40 GPM120 psi150 Degrees F-NPTA$ 3442.98
G6661A3-34B-C1/8"PTFEPolypropylene40 GPM120 psi150 Degrees F-FlangedA$ 4059.31
I666111-244-C1/8"PTFEStainless Steel35 GPM120 psi200 Degrees F-NPTA$ 8658.89
I666102-2EB-C1/8"Santoprene(R)Cast-Iron35 GPM120 psi200 Degrees F8"NPTA$ 4963.35
K6661AJ-344-C1/8"PTFEPolypropylene40 GPM120 psi150 Degrees F-NPTA$ 4724.39
L650715-C1/8"AcetalAluminum35 GPM120 psi150 Degrees F17.88"NPTA$ 4039.24
STANDARD PUMP -

Double Diaphragm Pumps

Standard Pump double diaphragm pumps (also called AODD pumps) are used to transport sludges, slurries, abrasives and shear sensitive fluids using either a consistent air or natural gas supply. The air pressure in these pumps acts along the entire surface of the diaphragm, thereby keeping it balanced while pumping and substantially extending the pump life as compared to mechanically operated diaphragm pumps. They come equipped with stainless-steel 316 components and Tri-clamp intake / discharge mechanism, as well as facilitate quick assembly / disassembly for pump maintenance and cleaning. Choose from a wide range of these double diaphragm pumps avaialble in 100 and 120 PSI maximum operating pressure variants on Raptor Supplies.

StyleModelMax. Temp.Connection StyleDiaphragm MaterialWidthHeightInlet/Outlet SizeLengthMax. Dia. SolidsPrice (inc. GST)
ASPFP30NPT220 Degrees F3" Tri-ClampPTFE17"32"3"21.5"3/8"A$ 31795.17
BSPSN15NPT220 Degrees F1-1/2" Tri-ClampPTFE15.75"31.5"1.5"18.5"5/8"A$ 24052.31
BSPSN20NPT220 Degrees F2" Tri-ClampPTFE17"34.75"2"18.5"5/8"A$ 39208.55
ASPFP30NPS275 Degrees F3" Tri-ClampSantoprene(R)17"32"3"21.5"3/8"A$ 29477.80
BSPSN15NPS275 Degrees F1-1/2" Tri-ClampSantoprene(R)15.75"31.5"1.5"18.5"5/8"A$ 23393.35
BSPSN20NPS275 Degrees F2" Tri-ClampSantoprene(R)17"34.75"2"18.5"5/8"A$ 32618.87
CSP3A20NPT275 Degrees F2" Tri-ClampSantoprene(R)17"34.75"2"18.5"5/8"A$ 41130.54
DAYTON -

Air Operated Double Diaphragm Pumps

Dayton double diaphragm pumps are suitable for general pump transfer, recirculation, spraying, dispensing, filling, fuel evacuation, low scheming transfer and rough metering dewatering applications. They feature cast iron construction for wear resistance & vibration dampening, and spring assisted air valves that do not require lubrication for rapid discharge of the media present in pipelines. These pumps can run dry and have the capability to pump solvents, slurries & high viscosity liquids such as waste oils & paints. They have NPT, flange & Tri-Clamp connections for secure seals and transportation of liquids with minimal risk of contamination. Choose from a broad range of these pumps, available in PTFE, Buna-N, santoprene (R) and EPDM ball variants.

StyleModelMax. Dia. SolidsBall MaterialBody MaterialMax. FlowMax. Temp.Valve TypeWidthConnection StylePrice (inc. GST)
A22A5921/16"Buna NAluminum32 GPM180 Degrees FBall9.75"NPTA$ 2861.58
B22A6051/16"PTFE316 Stainless Steel32 GPM212 Degrees FBall9.75"Tri-ClampA$ 8983.19
C34TJ411/16"PTFEAluminum-212 Degrees FBall9 13/16"NPTA$ 2757.48
D6PY531/16"PTFE316 Stainless Steel21 gpm212 Degrees FBall12 13/32"NPTA$ 5745.21
D6PY521/16"PTFEAluminum21 gpm212 Degrees FBall12 13/32"NPTA$ 2615.01
D6PY471/16"EPDM316 Stainless Steel28 GPM212 Degrees FBall12 13/32"NPTA$ 3702.29
D6PY431/16"Buna NAluminum28 GPM180 Degrees FBall12 13/32"NPTA$ 1763.17
E6PY401/16"PTFEPolypropylene21 gpm180 Degrees FBall14.75"NPTA$ 2712.07
D3HJW81/16"EPDMAluminum28 GPM212 Degrees FBall12 13/32"NPTA$ 2067.65
E6PY351/16"EPDMPolypropylene28 GPM180 Degrees FBall14.75"NPTA$ 1796.06
B22A6041/16"PTFE316 Stainless Steel32 GPM212 Degrees FBall9.75"Tri-ClampA$ 8386.29
F3HJW71/32"EPDMAluminum12 gpm212 Degrees FBall7 5/16"NPTA$ 1581.25
G22A5971/32"Santoprene(R)Stainless Steel14 GPM212 Degrees FBall7 5/16"NPTA$ 5081.38
F6PY511/32"PTFE316 Stainless Steel12 gpm212 Degrees FBall7 5/16"NPTA$ 4067.56
F6PY491/32"PTFEAluminum12 gpm212 Degrees FBall7 5/16"NPTA$ 3324.24
H3HJV81/32"PTFEKynar(R)15 gpm212 Degrees FFlat7"NPTA$ 3009.67
F6PY421/32"Buna NAluminum12 gpm180 Degrees FBall7 5/16"NPTA$ 2211.57
H3HJW11/32"PTFEKynar(R)15 gpm212 Degrees FFlat7"NPTA$ 3018.11
I22A6031/32"PTFE316 Stainless Steel14 GPM212 Degrees FBall8.38"Tri-ClampA$ 5712.92
J6PY391/32"PTFEPolypropylene15 gpm180 Degrees FFlat7"NPTA$ 1906.41
J6PY341/32"PTFEPolypropylene15 gpm180 Degrees FFlat7"NPTA$ 1632.84
I22A6021/32"PTFE316 Stainless Steel14 GPM212 Degrees FBall8.38"Tri-ClampA$ 5348.46
K34TJ472"Buna NAluminum-180 Degrees FFlap28.25"NPT/FlangeA$ 10255.59
L22A6073/16"PTFE316 Stainless Steel46 GPM212 Degrees FBall11.25"Tri-ClampA$ 11407.40
M3HJV93/16"PTFEKynar(R)35 GPM212 Degrees FBall14.75"NPTA$ 9322.52
ARO -

Diaphragm Pumps

ARO's ATEX-certified diaphragm pumps are widely used to pump various light to medium viscosity fluids in chemical processing industries and water / wastewater treatment plants. These ARO pumps feature an unbalanced valve design that eliminates the occurrence of valve centering and pump stall-out even when the inlet pressure is very low. The company manufactures metallic and non-metallic electric diaphragm pumps in different sizes, operating pressures and diaphragm materials.

StyleModelMax. Dia. SolidsBall MaterialBody MaterialMax. FlowMax. Operating PressureMax. Temp.Valve TypeWidthPrice (inc. GST)
APD15A-ASS-AAA1/4"Santoprene(R)Stainless Steel123 gpm120 psi200 Degrees FBall14"A$ 15426.14
BPD20A-ASS-STT-B1/4"PTFEStainless Steel172 gpm120 psi200 Degrees FBall21.62"A$ 25704.36
CPD15P-YPS-PAA1/4"Santoprene(R)Polypropylene123 gpm120 psi150 Degrees FBall11"A$ 11770.48
DPD15P-FPS-PTT1/4"PTFEPolypropylene123 gpm120 psi150 Degrees FBall11"A$ 13683.30
DPD15P-FPS-PAA1/4"Santoprene(R)Polypropylene123 gpm120 psi150 Degrees FBall11"A$ 11593.76
APD15A-ASS-STT1/4"PTFEStainless Steel123 gpm120 psi200 Degrees FBall14"A$ 17771.14
EPD15A-ACP-AAA1/4"Santoprene(R)Cast-Iron123 gpm120 psi200 Degrees FBall14"A$ 7769.19
BPD20A-ASS-AAA-B1/4"Santoprene(R)Stainless Steel172 gpm120 psi200 Degrees FBall21.62"A$ 25930.41
FPD20A-AAP-STT-B1/4"PTFEAluminum172 gpm120 psi200 Degrees FBall21.62"A$ 11439.58
GPD15A-AAP-GGG1/4"NitrileAluminum123 gpm120 psi180 Degrees FBall14"A$ 5883.06
GPD15A-AAP-FTT1/4"PTFEAluminum123 gpm120 psi200 Degrees FBall14"A$ 7714.83
GPD15A-AAP-AAA1/4"Santoprene(R)Aluminum123 gpm120 psi200 Degrees FBall14"A$ 5592.40
FPD20A-AAP-GGG-B1/4"NitrileAluminum172 gpm120 psi180 Degrees FBall21.62"A$ 8354.04
FPD20A-AAP-AAA-B1/4"Santoprene(R)Aluminum172 gpm120 psi200 Degrees FBall21.62"A$ 6920.25
FPD20A-ACP-AAA-B1/4"Santoprene(R)Cast-Iron172 gpm120 psi200 Degrees FBall21.62"A$ 10945.70
CPD15P-YPS-PTT1/4"PTFEPolypropylene123 gpm120 psi150 Degrees FBall11"A$ 13466.71
DPD20P-FPS-PAA1/4"Santoprene(R)Polypropylene184 gpm120 psi150 Degrees FBall22.25"A$ 18132.93
HPD20P-FPS-PTT1/4"PTFEPolypropylene184 gpm120 psi150 Degrees FBall22.25"A$ 19777.47
I650717-C1/8"AcetalAluminum29 gpm50 psi180 Degrees FBall9.5"A$ 5059.38
JPW10A-AAP-AAA1/8"Santoprene(R)Aluminum60 GPM120 psi200 Degrees FBall14"A$ 4787.33
JPW10A-AAP-GGG1/8"NitrileAluminum60 GPM120 psi180 Degrees FBall14"A$ 4662.33
KPD10A-AAP-FTT1/8"PTFEAluminum52 gpm120 psi200 Degrees FBall14"A$ 5910.54
LPD10A-ASS-AAA1/8"Santoprene(R)Stainless Steel52 gpm120 psi200 Degrees FBall14"A$ 9889.79
LPD10R-ASS-AAA1/8"Santoprene(R)Stainless Steel52 gpm120 psi200 Degrees FBall8 5/16"A$ 8842.37
MPD10P-APS-PAA1/8"Santoprene(R)Polypropylene53 gpm120 psi150 Degrees FBall11"A$ 4603.74
FLOJET -

Double Diaphragm Pumps

StyleModelMax. Operating PressureBall MaterialBody MaterialWidthDiaphragm MaterialHeightInlet/Outlet SizeLengthPrice (inc. GST)
AN5100020G75 psiPolypropolyneAcetal2.38"Viton(R)4"3/8"6"A$ 551.41
BG573215Z80 psiViton(R)Polypropylene3.25"Viton(R)5.75"1/2"4.5"A$ 845.00
BG575215Z80 psi-Polypropylene3.25"Santoprene(R)5.75"1/2"4.5"A$ 604.67
BINKS -

DBL Diaphragm Pumps

StyleModelCapacityPrice (inc. GST)
AGEM2-P2D10605 galA$ 5065.98
BGEM2-P2D1D605 gal.A$ 6726.41
CGEM2-W2D20705 gal.A$ 5126.79
STANDARD PUMP -

Wet End Repair Kit, Wet End Repair Kit AODD Pump, Std Pump, 200-080, SPFP20NPS, 39N543

ModelItemPrice (inc. GST)
200-080CU4HEUA$ 1534.50
SANDPIPER -

Wet End Kit, Sandpiper, 476.354.677, HD20F1PJSPNS000, 56MA11, Santoprene

ModelItemPrice (inc. GST)
476.354.677CT9TEZA$ 1511.55
SANDPIPER -

Wet End Repair Kit, Fluid End Repair Kit, 476.199.354, Santoprene, Santoprene, Ball/Check

ModelItemPrice (inc. GST)
476.199.354CT9TFAA$ 549.08
STANDARD PUMP -

Double Diaphragm Pump, Air, 316 Stainless Steel, Multiport, 150 Gpm

ModelItemPrice (inc. GST)
SPPP30SSECU4HEDA$ 35218.50
STANDARD PUMP -

Double Diaphragm Pump, Air, 316 Stainless Steel, Single Port, 120 Gpm

ModelItemPrice (inc. GST)
SPFG15SSTCU4HEEA$ 22814.20
STANDARD PUMP -

Double Diaphragm Pump, Air, 316 Stainless Steel, Single Port, 120 Gpm

ModelItemPrice (inc. GST)
SPFG15SSSCU4HEFA$ 19007.91
STANDARD PUMP -

Double Diaphragm Pump, Air, 316 Stainless Steel, Single Port, 41 Gpm

ModelItemPrice (inc. GST)
SPFG10SSTCU4HEGA$ 15772.77
STANDARD PUMP -

Wet End Repair Kit, Fluid End Repair Kit, Air Operated Double Diaphragm Pump, Fluid

ModelItemPrice (inc. GST)
200-060CU4HEMA$ 1148.00
STANDARD PUMP -

Wet End Repair Kit, Fluid End Repair Kit, Air Operated Double Diaphragm Pump, Fluid

ModelItemPrice (inc. GST)
200-040CU4HENA$ 990.33
STANDARD PUMP -

Wet End Repair Kit, Fluid End Repair Kit, Air Operated Double Diaphragm Pump, Fluid

ModelItemPrice (inc. GST)
200-140CU4HEPA$ 1025.38
STANDARD PUMP -

Wet End Repair Kit, Fluid End Repair Kit, Air Operated Double Diaphragm Pump, Fluid

ModelItemPrice (inc. GST)
200-020CU4HEQA$ 519.51
STANDARD PUMP -

Wet End Repair Kit, Fluid End Repair Kit, Air Operated Double Diaphragm Pump, Fluid

ModelItemPrice (inc. GST)
200-050CU4HERA$ 5849.01
STANDARD PUMP -

Wet End Repair Kit, Wet End Repair Kit AODD Pump, Std Pump, 200-010, SPFP05PPT, 39N536

ModelItemPrice (inc. GST)
200-010CU4HETA$ 2076.91
12...1112

Air Operated Diaphragm Pumps

Air operated diaphragm pumps are designed to pump thick slurries & solid-laden liquids in applications such as dewatering and mining. Raptor Supplies offers a wide range of air operated diaphragm pumps from brands like Aro, Sandpiper, Flojet, Versa-Matic. Standard-duty Sandpiper air-diaphragm pumps are ideal for dewatering & pumping slurries, solvents, abrasive fluids, weak acids & suspended solids in petrochemical and food processing plants. These pumps are designed to operate on a continuous supply of compressed air and feature aluminium / cast iron / stainless steel / non-metallic construction to ensure structural rigidity. The brand's self-priming double-diaphragm pumps feature ball check valves for withstanding consistent fluid flow and connecting rods for reliable & consistent diaphragm control. These all-bolted, shear-sensitive air diaphragm pumps are offered in flange and NPT connection styles. Air-operated double-diaphragm pumps from Versa-Matic are ideal for easy & safe transport of chemicals & other fluids. These diaphragm pumps feature leak-free bolted construction for superior chemical resistance, with multi-position foot mounts & multiple ported manifolds offering installation flexibility. They can withstand temperatures up to 275 degrees F and have operating pressures ranging between 100 & 125 psi. Raptor Supplies offers a wide range of air operated diaphragm pumps in heights ranging from 10-3/64 to 16-61/64 inches.

Working Mechanism

  • These air operated diaphragm pumps separate the liquid chamber from the air chamber within the pump.
  • Inlet and outlet air valves control the flow of compressed air into the air chamber of the pump. When the pump is at rest, both diaphragms are in a relaxed state, and the inlet valve is open while the outlet valve is closed.
  • To begin the pumping cycle, compressed air is introduced into the air chamber behind one of the diaphragms. This causes the diaphragm to flex inward, creating a vacuum within the liquid chamber. The vacuum draws liquid into the pump through the inlet check valve.
  • As one diaphragm flexes inward and draws in liquid, the opposite diaphragm simultaneously expands outward, pushing the liquid out through the outlet check valve. This movement creates a pulsating flow of liquid.
  • Once the first diaphragm completes its inward stroke and the liquid is discharged, the air valves switch positions. The inlet valve closes, and the outlet valve opens, allowing compressed air to act on the second diaphragm.
  • The process repeats as the second diaphragm flexes inward, creating a vacuum to draw in more liquid, while the first diaphragm pushes out the previously drawn liquid. This alternating action creates a continuous flow of liquid.
  • The double diaphragm design ensures balance and symmetry in the pumping process. As one diaphragm contracts, the other expands, minimizing stress and wear on the diaphragms and providing smooth and consistent flow.

Features

Dayton Double Diaphragm Pumps :

  • These air operated double diaphragm (AODD) pumps have cast iron construction for structural rigidity and wear resistance.
  • They are equipped with spring assisted air valves that do not require lubrication for rapid discharge of the media present in pipelines.
  • These air operated diaphragm pumps can run dry and have the capability to pump solvents, slurries & high viscosity liquids such as waste oils & paints.
  • They feature NPT, flange and tri-clamp connections for secure seals and transportation of liquids with minimal risk of contamination.

Sandpiper Double Diaphragm Pumps :

  • These AODD pumps act along the entire surface of the diaphragm, keeping it balanced while pumping, which substantially extends pump life as compared to that of mechanically operated diaphragm pumps.
  • They come with a flooded suction feature that allows outdoor mounting and pumping of viscous fluids.
  • These air operated diaphragm pumps offer flow rates of 4, 42, 106 and 135 GPM for dispensing fluids.
  • They provide a screened inlet option for making the filtration process efficient when the pumps are submerged under water, where sediments and debris are very common.

ARO Double Diaphragm Pumps :

  • They are ATEX-certified diaphragm pumps for medium-viscosity fluids used in chemical processing industries and water / wastewater treatment plants.
  • These ARO pumps feature an unbalanced valve design that eliminates the occurrence of valve centring and pump stall-out even when the inlet pressure is very low.

Frequently Asked Questions

Can these pumps be used for metering or dosing application?

Yes, they can be used for metering. For precise dosing, accessories like pulsation dampeners and stroke adjustment controls may be required.

How to maintain these air operated diaphragm pumps?

Routine maintenance includes inspecting diaphragms for wear, checking valves, and tightening connections. Lubrication may be necessary, depending on the pump design.

Can these Sandpiper pumps be used in dry run situations?

These AODD pumps can be safely dry-run and deadheaded without causing any damage to the pump or system.

What is the maximum suction height that these double diaphragm pumps offer?

Sandpiper pumps can continuously pump fluids even if situated out of the pit and offer a maximum suction lift of 9.8 m.

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