Three Way Valves0 pages

Bulletin 8B

Three-Way Bypass Valves
• Two-position valves designed to divert
flow from one pipeline to another
INTRODUCTION
Schutte & Koerting Three-Way Bypass Valves provide a
convenient, economical means of diverting flow from one
pipeline to another. They are often used in bypass
arrangements in steam generating plants and process
applications in steam generating plants and process
applications where they can save users thousands of
dollars by eliminating conventional gate valves, bypass
accessories and custom fabrications. Basic offset body
construction is illustrated in Figure 3 on page 2. The
valve disc is raised or lowered to direct flow from one
outlet to the other, as illustrated in Figure 2A and Figure
2B on page 2.

Offset Body Design

These offset body valves are available in connection
sizes ranging from 8” up to 20”. Welding ends are
normally supplied with these valves which are available
from 300 lb. to 1,500 lb. and 2,500 lb. pressure service
(see specifications on page 4).
DESIGN FEATURES
(As illustrated in Figure 4)

Flat Seating Surfaces
Combined with flexibility between the disc and stem
provides a self aligning tight seal.

Globe Body Design

Extended Welding Connections
Welding end connections are extended well away (at
least one pipe diameter) from the valve body to minimize
the possibility of distortion during field welding.
Reliable Service
Large Three-Way Valves are designed to handle high
pressure applications such as boiler feedwater service in
steam power plants. S&K inspection techniques and
facilities provide for comprehensive in-plant testing of
valves prior to shipment. All valves can be serviced in the
field without removing them from the pipeline.
Special High Pressure Construction
When valve size and pressure ratings require, this
pressure seal bonnet construction is used. Motoroperated valves with this type of construction have been
in service, operating reliably, for as long as 10 years with
water pressures as high as 4700 psig and temperatures
up to 700°F.

Fig. 4

Schutte & Koerting • 2510 Metropolitan Drive • Trevose, PA 19053 • USA • tel: (215) 639-0900 • fax: (215) 639-1597 • www.s-k.com • sales@s-k.com

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