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Kleiss MCS120-24 System Manual v.1.1 March 2021
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www.MainlineControlSystems.com
Kleiss MCS120-24 System Overview
Kleiss MCS120-24 System Overview
The Kleiss inflatable stopping systems meet the needs of the North
American Natural Gas LDCs by providing a flow control system that is
easy to use and effective at stopping off flow in various pipe materials
and a wide range of pipe diameters.
The Kleiss MCS120-24 System consists of four major components:
1) fitting to access the pipe, 2) tapping / completion tool, 3) inflatable stopper, and 4) stopping tool.
The Kleiss MCS120-24 System (all tools) has a maximum operating pressure of 120 psi. The inflatable stoppers have a
design safety factor of 3. The balance of the tools have a design safety factor of 2.
The Kleiss MCS120-24 System is designed to handle flow control on pipe sizes 2” to 4” on steel pipes.
(Kleiss & Co., who developed the system, has reviewed and approved this manual.)
Table of Contents:
1.0 General Safety Information: .................................................. 2
2.0 System Specifications: ........................................................... 2
3.0 Typical Site Set Up and Sequence: ........................................ 4
4.0 Equipment: .............................................................................
9
5.0 Preparatory Steps: ................................................................ 15
6.0 Tapping Operation: .............................................................. 15
7.0 Stopping Operation: ............................................................. 22
8.0 Retrieving MDS Stopper: .................................................... 29
9.0 Plugging Operation: ............................................................. 32
10.0 General Maintenance: ........................................................ 35
APPENDIX A: Stopper Testing and Verification....................... 36
APPENDIX B: Tower Positioning and Distances ..................... 38
APPENDIX C: Manual Updates ................................................ 42
