Diaphragm Tightening Torques; Exchange Of The Control Valve - Sera ABP - 030 Notice De Mise En Service

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
9.4.1

Diaphragm tightening torques

Tightening torques for diaphragms
Pump type Diaphragm material
Santoprene
Santoprene + PTFE
AP.. - 30
Hytrel
Hytrel + PTFE
Santoprene
AP.. - 45
Hytrel + PTFE
Santoprene
AP.. - 100
Hytrel + PTFE
Santoprene
AP.. - 150 Santoprene + PTFE
Hytrel + PTFE
Santoprene
AP.. - 340
Hytrel + PTFE
Santoprene
AP.. - 650 Santoprene + PTFE
Hytrel + PTFE
Santoprene
AP.. - 850 Santoprene + PTFE
Hytrel + PTFE
Tightening torques for suction-/pressure
Pump type Tightening torques
[Nm]
(with PTFE O-Rings)
AP... - 30 ---
AP... - 45 6
AP... - 100 8
AP... - 150 10
AP... - 340 18

AP... - 650

AP... - 850
Tightening torques for pump bodies/housing
Pump type
AP... - 30
AP... - 45
AP... - 100
AP... - 150
AP... - 340
AP... - 650
AP... - 850
TA 312 Rev. 21 en 08/2018
Tightening torque
[Nm]
15
15
15
15
27
30
30
33
33
33
33
47
50
160
160
160
160
160
160
Tightening torques
[Nm]
(with rubber O-Rings)
4
---
10
12
18


Tightening torques [Nm]
4
7
10
7
14
25
25
Subject to technical modifications!
9.5

Exchange of the control valve

Proceed as follows to replace the control valve.
Disassemble the pump as described in section 9.3 „Changing
diaphragms".
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