SPENCER VCIMD-14918 Uniflex Pipe Coupling Installation Guide
- October 30, 2023
- SPENCER
Table of Contents
VCIMD-14918 Uniflex Pipe Coupling
Installation Guide
WARNING
CALIFORNIA PROPOSITION 65
This product can expose you to chemicals including nickel, which is known to
the State of California to cause cancer, birth defects, or other reproductive
harm. For more information, go to
www.P65Warnings.ca.gov.
Introduction
This installation sheet covers the installation of the Uniflex Coupling.
Product Description
The Uniflex Coupling is a modified forged steel or stainless steel pipe union utilizing a spiral wound gasket to provide a leak tight joint. Use of the Uniflex in all regulator and trap stations through 2 in. / 50.8 mm to simplify future change outs. The Uniflex Coupling is a straight through design that consists of a spiral wound gasket, an inlet housing, an outlet housing and the housing nut, see Figure 1.
Specifications
Available Models
SUA-T: Threaded Carbon Steel
SUA-SW: Socket weld Carbon Steel
SUASS-T: Threaded Stainless Steel
SUASS-SW: Socketed Stainless Steel
Maximum Temperature 850°F/454°C
Maximum Pressure 3000 psig/207 bar
Installation
WARNING
Personal injury, property damage, equipment damage or leakage due to escaping
steam or bursting of pressure containing parts may result if this equipment is
over pressured or is installed where service conditions could exceed the
limits given in the specifications or where conditions exceed any ratings of
the adjacent piping or piping connections. To avoid such injury or damage,
provide pressure-relieving or pressure-limiting devices (as required by the
appropriate code, regulation or standard) to prevent service conditions from
exceeding those limits.
Threaded Union Installation
The installation procedure for the Uniflex Coupling is similar to the
installation procedure for any standard pipe union, with the following
exceptions:
- Care must be taken in positioning the spiral-wound gasket without a retainer.
- Apply a thin film of silicone grease or thread lubricant in the groove of the inlet housing before inserting the gasket. Gaskets with a retainer do not require this step.
- Apply thread lubricant to the external threads of the union to have proper sealing force.
- Properly tighten the union to ensure leak-proof seal.
- Retighten the union after it reaches full temperature.
Socket Weld Unions Installation
Whenever welding is performed adjacent to the Uniflex Couplings, the following
steps must be taken to avoid destruction of the gasket by heat and/or arcing
of the Union surfaces.
- Remove gasket from the Uniflex Coupling.
- Wrench-tighten the Uniflex Coupling after gasket has been removed.
- Place grounding clamp as close as possible to the point of the weld.
- Allow the Uniflex Coupling to cool before installing the gasket.
- Always use new gasket when the Uniflex Coupling is disassembled.
Replacement Parts
Type SUG or SUGR (with retainer) replacement parts kit are available from the
factory. Type SUG kit includes (10) Uniflex replacement gaskets. Type SUGR kit
includes (10) Uniflex replacement gaskets and (10) retaining devices.
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T +65 6777 8211
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VCIMD-14918 © 2020, 2021 Emerson Electric Co. All rights reserved 01/22.
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The contents of this publication are presented for informational purposes
only, and while every effort has been made to ensure their accuracy, they are
not to be construed as warranties or guarantees, express or implied, regarding
the products or services described herein or their use or applicability. All
sales are governed by our terms and conditions, which are available upon
request. We reserve the right to modify or improve the designs or
specifications of such products at any time without notice.
Emerson Electric Co. does not assume responsibility for the selection, use or
maintenance of any product. Responsibility for proper selection, use and
maintenance of any Emerson Electric Co. product remains solely with the
purchaser.
www.SpenceValve.com
0011129
Documents / Resources
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SPENCER VCIMD-14918 Uniflex Pipe
Coupling
[pdf] Installation Guide
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VCIMD-14918 Coupling, Uniflex Coupling, Coupling, VCIMD-14918 Uniflex Pipe
Coupling, Uniflex Pipe Coupling, Pipe Coupling
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