TITLE:
NO.:
KEROTEST MODEL-1
REV.: 10
GATE VALVE
DATE: 7/12/07
OPERATIONS MANUAL
PAGE: 7 OF 35
This report is the property of Kerotest Manufacturing Corp. 5500 Second Avenue, Pittsburgh, PA 15207 and may not be
copied by any means without the expressed written consent of Kerotest. It is intended for the sole purpose of helping
Kerotest customers evaluate Kerotest products and may not be released to any third party or otherwise used in any
manner injurious to the interests of Kerotest.
VALVE INSTALLATION
General Instructions
• Valves are of the wedge gate design and can be installed with either end as the inlet
side
• Valves should be installed with the wedge in the closed position
Screwed End Valves
• Valve ends have pipe threads machined per ANSI B2.1
• Apply a suitable threading compound to the threads on the pipe. The threading
compound should be applied sparingly.
• The wrench used for installing these valves should be applied to the end of the valve
next to the pipe to which it is being connected
Socket Weld End Valves
• Valve ends are machined per ANSI B16.11
• "Note" in order that the valve seats are not affected during the welding operation, the
wedge should be in the closed position
• Valves should be installed using either the electric arc or oxy-acetylene welding
methods by welders and welding procedures qualified under Section IX of the ASME
Boiler and Pressure Vessel Code or an equivalent requirement
o Valve bodies are carbon steel (ASTM A216 Gr. WCB). Type 7018 Welding Rod
is suggested for welding these (WCB) valves in the pipeline.
Flanged End Valves
• End flanged dimensions conform to ANSI B16.5
• Standard end flange facing is 1/16" raised face with phonographic finish
• Bolting and gasketing practice conforming to ANSI B16.5 is suggested
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