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Almatec CXM-Series AOD Pumps

Four pump sizes with NPT and three pump sizes with BSP connections are available. The NPT pump sizes 10, 20, 50 and 130 are drop-in interchangeable with the CX and CXR series. The position of the suction and discharge ports can be changed by rotating the center block. The product connections of the BSP pumps sizes 25, 55 and 135 are located on the face side of the pump.

Almatec CXM-Series AOD Pumps Sizes & Connection Styles

  • CXM 10 = NPT 3/8″
  • CXM 20 = NPT 1/2″
  • CXM 50 = NPT 3/4″
  • CXM 130 = NPT 11/4″
  • CXM 25 = BSP 1/2″
  • CXM 55 = BSP 1″
  • CXM 135 = BSP 11/2″
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Construction and Materials

almatec-ah-series-air-operated-diaphragm-filter-press-feeding

The series AH has been specially developed for feeding filter presses with chemical wastes and special sludge. With a maximum drive pressure of 7 bar, they can build up discharge pressures of up to 15 bar (218 psig) as a result of the internal booster. This yields a ratio of drive pressure/discharge pressure of more than 1:2.

As genuine double-acting air-driven diaphragm pumps, the three sizes (AH 15, AH 25, AH 40) achieve maximum capacities of 4 m³/h (17 gpm), 10 m³/h (44 gpm) and 20 m³/h (87 gpm). The following values can be quoted as a rough guide to the filter area of the press: AH 15 up to 12 m², AH 25 up to 30 m², and AH 40 up to 60 m². Decisive are the consistency of the sludge, the dry content and the dehydration capability always.

Technical Data

CXM 10CXM 20CXM 25CXM 50CXM 55CXM 130CXM 135
Dimensions for pump in mm (inch),
length86 (3.4)124 (4.9)124 (4.9)175 (6.9)180 (7.1)240 (9.4)245 (9.7)
width135 (5.3)151 (5.9)151 (5.9)201 (7.9)201 (7.9)265 (10.4)265 (10.4)
height90 (3.5)123 (4.8)123 (4.8)167 (6.6)167 (6.6)217 (8.5)217 (8.5)
Nominal port sizeNPT 3/8“NPT 1/2“BSP 1/2“NPT 3/4“BSP 1“NPT 1 1/4“BSP 1 1/2“
Air connection BSP1/4“1/4“1/4“1/4“1/4“1/4“1/4“
Weight kg (lb)1 (2.2)1,8 (3.8)1,8 (3.8)4,7 (10.4)4,7 (10.4)11 (24)11 (24)
Max. driving air pressure bar (psig)7 (100)7 (100)7 (100)7 (100)7 (100)7 (100)7 (100)
Max. particle size of solids for pumps with ball valves mm (in.)1,5 (0.06)2 (0.08)2 (0.08)3 (0.12)3 (0.12)4 (0.16)4 (0.16)
Suction head, dry in mWC (ft.)
cylinder valves0,7 (2.3)2 (6.6)2 (6.6)4,5 (14.8)4.5 (14.8)4,5 (14.8)4,5 (14.8)
EPDM ball valves0,5 (1.6)1 (3.3)1 (3.3)3 (9.9)3 (9.9)3 (9.9)3 (9.9)
PTFE ball valves0,5 (1.6)1 (3.3)1 (3.3)2 (6.6)2 (6.6)3 (9.9)3 (9.9)
stainless steel ball valves0,5 (1.6)1 (3.3)1 (3.3)2 (6.6)2 (6.6)3 (9.9)3 (9.9)
Suction head, wet in mWC (ft)8 (26.3)8 (26.3)8 (26.3)9 (29.5)9 (29.5)9 (29.5)9 (29.5)
Max. operating temperature °C (°F)70 (158)70 (158)70 (158)70 (158)70 (158)70 (158)70 (158)

Performance

Almatec CXM 10 Air-Operated Diaphragm Pump

almatec-cxm-10-air-operated-diaphragm-pump-curve

Almatec CXM 20 & CXM 25 Air-Operated Diaphragm Pump

almatec-cxm-20-and-cxm-25-air-operated-diaphragm-pump-curve

Almatec CXM 50 Air-Operated Diaphragm Pump

almatec-cxm-50-air-operated-diaphragm-pump-curve

Almatec CXM 55 Air-Operated Diaphragm Pump

almatec-cxm-55-air-operated-diaphragm-pump-curve

Almatec CXM 130 Air-Operated Diaphragm Pump

almatec-cxm-130-air-operated-diaphragm-pump-curve

Almatec CXM 135 Air-Operated Diaphragm Pump

almatec-cxm-135-air-operated-diaphragm-pump-curve

Almatec Spare Parts

All Pumps stock a wide range of Almatec CXM Series spares, including spare parts kits.

The Almatec spares we stock include:

Air Valves
Balls
Bushings
Capillary Rod Assembly
Check Body
Clamp Bands
Diaphragms
End Caps

End Cap O-Rings
Expanded PTFE Kits
Fluid Section Repair Kits
Gaskets
Mufflers
O-Rings
Oil Bottles

Pipe Bushing
Pistons
Retaining Rings
Screens
Shafts
Valve Balls
Seats

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