
1.0 Foreword
1.1 Scope Of Instruction Manual
This Instruction Manual covers information regarding Installation and Maintenance of
Dembla's Floating ball Valve.
1.2 Copyrights And Modification Rights Reservation
Dembla Valves Ltd. retains the copyright on the contents of this Instruction Manual.
The Total content of this instruction manual described here corresponds to the
information during preparation of the instruction manual. It is user's responsibility to refer the latest version.
All data, specifications and illustrations here are subjected to technical modifications and improvements and
hence modification can be done by us at by time without any prior notice. No claim to modification or repair
of these valves, which have already been supplied by us, can be made.
1.3 Safety Instructions
1) Before attending to Valve Installation / Maintenance, the instruction manual must be
compulsorily read and understood properly.
2) Valve must be operated by qualified personnel.
3) Ensure that the operator handling these Valves must follow Safety Instruction.
4) Ensure that before opening the valve for maintenance or repair, wear suitable protection
when dealing with hazardous process fluids.
5) All Safety Messages such as Cautions, Warnings and Notes are highlighted in this
Instruction Manual which must be strictly followed to avoid any possibility of arising
danger / risk of damage to the equipment / person's life.
6) No Liability on Manufacturer for any wrong handling, improper commissioning and
wrong assembly.
7) No modification / conversions are allowed without written authorization from Dembla
Valves Ltd.
2.0 Introduction
Dembla's Floating Ball valves are available conforming design as per
BS – 5351
EN-17292
API6D
2