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Operating manual High-pressure double diaphragm pumps Cobra 40-10; Cobra 40-25

5 Description

20 Order number 2340851 | Edition 05/2022

5 DESCRIPTION

5.1 COMPONENTS

B_07936

Cobra 40-10

Cobra 40-25

1 Control housing with integrated si-

lencer

9 Fluid section

2 Air pressure regulator 10 Product input

3 Ball valve 11 Grounding connection

4 Air motor 12 Pressure stage casing

5 Compressed air input 13 Return socket

6 Mounting flange 14 Valve depressor

7 Relief valve 15 Exhaust air opening

8 Product output

5.2 FUNCTIONING

The double diaphragm pump is driven with compressed air. This compressed air moves the

air piston in the air motor (4), and consequently the piston rod in the pressure stage (9), up

and down. At the end of each stroke, the compressed air is redirected by a reversing valve

and the control piston. The up-and-down movement of both diaphragms within the fluid

section is produced by hydraulic oil, which is moved by the piston in the pressure stage.

With every stroke of the piston rod, working product is sucked in and delivered to the spray

gun at the same time.

5.2.1 Air Motor

The air motor with its pneumatic reverse (1) does not require pneumatic oil. The compressed

air is fed to the motor via the air pressure regulator (2) and the ball valve (3).

WAGNER Cobra 40-10 User Manual

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