Pag. 20 / 80
Table 2 - Scheduled maintenance
Replacement of the membrane
Seal of the high pressure connection
1: Before allowing the use - 2: Before use - 3: After use - 4: Every six months - 5: Yearly - 6: Every three years - 7: Every six years
a) After use in corrosive environments or under extreme environmental conditions
b) According to the national laws
c) ATTENTION: Every time you disassemble the valve of the cylinder, you must replace it with a new one. Refer to the instructions
manual of the cylinder and valve for the proper torque values. After replacing any part, you must carry out all the operating and
pneumatic tightness checks.
4.4. Checks
Warning: the following checks must absolutely be carried out after cleaning or replacing the components.
The membrane of the demand valve, like all rubber parts, must be replaced if they show signs of alterations or
deterioration such as cracks, sticky parts, deformations, etc. All the connections must slide well without being
hindered and they must not show any signs of damage.
Some of the following tests can be carried out by means of special tools SPASCIANI can provide upon request.
4.4.1. Demand valve tightness at +7 mbar pressure
• Connect the cylinder to the reducer; the cylinder must be left closed
• Connect the demand valve to the medium pressure hose
• Unlock the lock button (pos. 1) by pressing on the button in the middle of the cover
• Connect the demand valve to the testing equipment
• Create a pressure of about 7 mbar in the demand valve
The pressure drop should not exceed 1 mbar per minute.
4.4.2. Positive pressure of the demand valve
• Open the cylinder valve
• Connect the demand valve to the testing equipment
• Unlock the demand valve by pressing on the rubber button in the middle of the cover
The pressure should be between 3.2 and 3.9 mbar.
4.4.3. Cylinder filling pressure test
See section 3.1.4
4.4.4. Pneumatic tightness test of the high pressure section
See section 3.1.5
4.4.5. Warning device test
See section 3.1.6
5. STORAGE AND TRANSPORT
The devices should be stored in cool and ventilated areas, away from gases, corrosive agents, direct sunlight and heat
sources. When clean and dry, the self-contained breathing apparatuses can be stored in closets or dust-proof cases.
For this, make sure the devices are leaned on their backrest and that the straps are not bent.
If stored in their original packaging or special case, the devices do not require special care as far as the transport is
concerned. We nonetheless recommend following the general storage indications already highlighted.
6. CERTIFICATIONS
To Next Page
Loading...