TITLE:
NO.:
KEROTEST MODEL-1
REV.: 10
GATE VALVE
DATE: 7/12/07
OPERATIONS MANUAL
PAGE: 30 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
.
PRESSURE DROP
Valve pressure drop (equivalent length in feet of pipe) is indicated in the chart shown below:
FULL PORT VALVES
Size
Equivalent Length in Feet of Pipe
1"
1.1
1-1/4"
1.5
2"
2.3
3"
3.4
4"
4.5
6"
6.8
8"
8.9
10"
10.2
12"
13.0
16"
16.5
VENTURI PORT VALVES
Size
Equivalent Length in Feet of Pipe
2" X 1-1/4"
14.2
3" X 2"
16.5
4" X 3"
13.6
6" X 4"
32.8
8" X 6"
27.2
10" X 8"
24.0
12" X 8"
65.7
16" X 12"
33.0
20" X 16"
41.0
