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OPERATION AND MAINTENANCE INSTRUCTIONS
AVK UNIVERSAL UNDER PRESSURE TEE
FOR
1. INTRODUCTION
AVK operations and maintenance instructions for the series 257/30 for water and the 257/31 for gas.
2. HEALTH AND SAFETY PRECAUTIONS
All of the following procedures must be carried out with due regard to relevant Road Traffic Act Guidelines, Health and Safety and COSHH
directives.
1 of 2
The designs, materials and specifications shown are subject to change without notice due to our continuing programme of product development.
AVK UK, 8 Rushmills, Northampton, England, UK, NN4 7YB, T: + 44 (0) 1604 601188. enquiries@avkuk.co.uk
COPYRIGHT©AVK GROUP A/S 2013
WATER
AND
GAS
SERIES 257
257/31
www.avkuk.co.uk
257/30
O&M 21.10.21
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Table of Contents
Summary of Contents for AVR 257/31
- Page 1 AVK UNIVERSAL UNDER PRESSURE TEE WATER SERIES 257 1. INTRODUCTION AVK operations and maintenance instructions for the series 257/30 for water and the 257/31 for gas. 257/31 257/30 2. HEALTH AND SAFETY PRECAUTIONS All of the following procedures must be carried out with due regard to relevant Road Traffic Act Guidelines, Health and Safety and COSHH directives.
- Page 2 Ensure recommended bolt torque is applied to all bolts It is advisable to recheck the torque settings 10 minutes after initial assembly in case of seal and bolt relaxation. 4. SEALING DIAMETERS & RECOMMENDED BOLT TOQUES 257/30 - Water 257/31 - Gas Sealing Diameters Recommended Sealing Diameters...
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