Worcester controls – Flowserve WK70 Series User Manual
Page 4
Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function
safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial
service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore
assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should read and understand the Installation
Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in connection with the specific application.
While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as a guarantee of
satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this product. Because Flowserve
is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice. Should any question arise concerning
these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices.
For more information about Flowserve Corporation, contact www.flowserve.com or call USA 1-800-225-6989.
FLOWSERVE CORPORATION
FLOW CONTROL DIVISION
1978 Foreman Drive
Cookeville, Tennessee 38501 USA
Phone: 931 432 4021
Facsimile: 931 432 3105
www.flowserve.com
© 2003 Flowserve Corporation, Irving, Texas, USA. Flowserve and Worcester Controls are registered trademarks of Flowserve Corporation.
12630-B 7/03 Printed in USA
NOTE: Valves with a pressure relief hole in the ball (V3 option) must
be assembled and installed with the hole upstream, when the valve is
closed, to ensure that cavity relief will occur upstream. Any valve with
a relief hole will have a directional arrow pointing downstream. Arrow
is either stamped on the body or on a metal tag welded to the valve
body.
Replace and tighten body bolts and nuts per torque figures found
in table to the right.
CAUTION: Use care not to scratch the body seals when replacing the
valve body back into the line.
When ordering parts, please provide the part name and the following
information as found on the valve handle, valve nameplate, or
mounting bracket nameplate:
1. Valve Size, Style and Revision Number, Example
1
/
2
" WK70 66RT
XBO R0 Stem.
2. Valve Size, Style and five-character code, known as a “P”, “T”,
“C”, or similar number, (the designation for a non-standard
product). Example,
3
/
4
" WK7066RT TC T0726 Ball.
The terminology shown in the exploded view parts listing on the
previous page is standard.
Tighten/torque all body bolts evenly and diagonally opposite each
other, alternating in a crisscross pattern. Use torque figures below:
STAINLESS STEEL STUDS
Bolt Diameter
in-lb
ft-lb
1
/
4
"
72-96
6-8
5
/
16
"
120-144
10-12
3
/
8
"
192-216
16-18
7
/
16
"
336-384
28-32
Flow Control Division
Worcester Controls