The Company
Since its organization in 1886, the Penberthy Manu-
facturing Co.* has been well known as a leading
manufacturer of injectors. As a result of its superior
basic injector design, continued improvements in
performance, manufacturing methods and standard
of quality, Penberthy leadership in the injector field
has been universally recognized for many years.
Penberthy injectors and service parts may be
purchased from any one of the thousands of jobber
and dealer representatives in all principal cities and
countries of the world. Their knowledge of the vari-
ous applications of the Penberthy injector, covering
many years of experience, assures prospective users
that they will obtain intelligent engineering sales
service.
Automatic Restarting
All Penberthy injectors are of the automatic restarting type.
If the established flow of water from an injector to the boiler
is interrupted temporarily by t he admission of air into the
suction line or by a jolt causing the overflow valve to open,
the injector will automatically reestablish flow without the
necessity of regulating any valves.
Feeds Warm Water to Boiler
Penberthy injectors feed water into the boiler at a tempera-
ture of from 130°F to 212°F depending upon the steam pres-
sure and t emperature of the supply water. By throttling the
water supply line, feed water temperatures up to 212°F can
be obtained under most conditions of operation.
Design
Injectors are designed so as to give well-balanced operation
against the greatest possible range of steam pressure, water
tem
erature and suction lift and to maintain satisfactor
PENBERTHY AUTOMATIC INJECTORS
performance for a long period of service. Designs are t he
result of years of experience with injector applications.
Injector connections have uni on tailpipes permitting quick
removal from the line.
all parts are easily removed for cleaning or replacement and
are precision made to assure interchangeability in the field.
Workmanship is highest quality. Years of manufacturing has
resulted in the training of skilled craftsmen and the develop-
ment of advanced production methods.
Material
Injectors are of all bronze construction with special bronze
alloys being used for suction and delivery jets to resist wear.
Inspection and Testing
All injectors are tested at the factory on actual boiler installa-
tions, assuring that injectors will meet all performance claims
as specified for the various models.
When the amount of steam and water reach the proper
proportion, the steam gradually condenses as the mix-
ture advances through injector. Upon reaching deliver
et
arallel the mixture is full
condensed.
The energy contained in the water passing through delivery jet is sufficient to
build up a pressure, greater than the boiler pressure, causing water to flow
through the discharge check valve into the boiler. When flow into the boiler is
established the overflow valve closes automatically and prevents the entrance
of air which would disrupt operation of injector. Total operating cycle requires
only a few seconds.
*Formerly Penberthy Injector Co.
3
NORTHEAST CONTROLS INCORPORATED
TEL: 201-419-6111 ext. 23 for Venturi Group
NORTHEAST CONTROLS INCORPORATED
TEL: 201-419-6111 ext. 23 for Venturi Group
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