1
1. Principles of operation
There are two diaphragms fixed to the center rod, one at each end. When compressed air is supplied to air
chamber b (right side, see Fig.1.1), the center rod moves to the right, the material in material chamber B is
pushed out, and at the same time material is sucked into material chamber A.
When the center rod is moved full-stroke to the right, the air switch valve is switched, compressed air is
sent to air chamber a (left side, see Fig.1.2), and the center rod moves to the left. The material in material
chamber A is pushed out, and at the same time material is sucked into material chamber B.
Through repetition of this operation, material is repeatedly taken in and discharged out.
2. Maintenance and Tools
2.1 Maintenance
Pump maintenance is recommended after each of the following periods.
Estimated inspection timing (Based on water at room temperature)
Type of diaphragm
Operation hours (h)
NBR 500
PTFE 150
TPEE 750
TPO 750
* In critical operations where preventive measures need to be taken, it is recommended to inspect
diaphragms after every three months of operation.
2.2 General tools
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Socket wrenches
10mm, 17mm
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Open-end wrenches
10mm, 17mm, 22mm
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Hexagonal box wrenches
5mm
2.3 Special tools (sold separately)
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Cap remover
▪
Sleeve remover
Purpose: Removing the cap
Purpose: For removing sleeves
2.4 Misc.
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Assembly oil
Turbine oil none addition class 1(equivalent to ISO VG32 grade)
▪
Nuts
M14
X
1.5 class 3
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Grease
Urea grease grade (NLGI) No.2
3.
Ordering Replacement parts
For accurate and speedy shipment of parts, be sure to order the right parts for your model to distributor
Indicate the part numbers, descriptions, and quantities.
Fig.2.2
(Part No. 713148)
Fig.1.1
Fig.1.2
Fig.2.1
(Part No. 717114)