AVR 30 Series Manual de instalação, operação e manutenção - Página 4

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SERIES 30 HYDRANT
INSTALLATION, OPERATION & MAINTENANCE MANUAL

2. installation

•
When installing the valve, ensure the flange faces are clean.
•
To ensure adequate sealing it is important to select the correct type of gasket for the medium concerned, a gasket with the
correct flange size must be used.
•
Place valve onto the pipe flange, and insert the bolts.
•
Tighten bolts loosely.
•
Tighten bolts in a diagonal sequence to ensure flanges are pulled parallel.
•
Finally tighten bolts to correct torque levels as recommended in WSA 109.
2.1. Bolts
2.1.1 Bolt size
The following table shows the bolt size you should use for each valve size
dn
mm
Bolts
80
M 16
100
M 16
3. operation
This series of Spring fire hydrants are suitable for use with clean water and neutral liquids, to a maximum temperature of
70°C. Minimum liquid temperature must be above freezing. Insulation is essential for external temperatures on 0°C and
below to a limit of -10°C. They are rated for a maximum working pressure of 16 bar.

4. Method of Operation

The AVK 30 series Hydrant is spring loaded and opened and closed by an approved standpipe arrangement. The standpipe
locks into position under the yoke and the tap at the top controls a rod that compresses the dome.
SWaBBinG
it is not possible to use the 30/00 series spring type for this purpose.
Only the 30/10 Swab type is suitable for the introduction and retrieval of swabs.
Series 30/10 Swab Type
AVK Australia Holdings Pty Ltd - 559A Grand Junction Road, Wingfield, SA 5013, Australia - Tel: +61 8 8368 0900 - Email: [email protected] - www.avkcivil.com.au
COPYRIGHT©AVK GROUP A/S 2017
Quantity
4
4
Typical standpipe
Version number 2
Pg 4