PENBERTHY Standard INJECTORS
FOR SUCTION LIFT APPLICATIONS
WITH STEAM PRESSURE
FROM 25 TO 140 PSI
SUITABLE FOR STEAM PRESSURES
UP TO 250 PSI WITH
WATER PRESSURE SUPPLY
STOCK MODEL
SUCTION LEFT – DELIVERY BACK
SUCTION FRONT
DELIVERY BACK
Penberthy Standard Injectors are available in two body st yles and
8 sizes with screwed connections from 3/8” to 2 1/2” pipe size,
having capacities as given in performance tables on page 6. They
are designed to meet the requirements of most applications and
will operate satisfactorily within the following range of operating
conditions:
Suction Lift Applications
Start Low: 25 psi steam pressure with 3 ft lift and 74°F water
Work High: up to 140 psi steam pressure with 3 ft lift and 74°F
water
Lift Water: 20 ft at 60 to 80 psi steam pressure with 74°F water
Maximum temperature of Suction Water: 3 ft lift and s team pres-
sures as follows:
120°F at 60 to 80 psi
115° at 100 psi
105°F at 120 psi
90°F at 140 psi
Water Pressure
Supply Applications
When water under pressure is connected directly to the injector
suction, Penberthy Standard Injectors can be operat ed at steam
pressures up to 250 psi. At steam pressures of 100 psi or m ore,
capacities are substantially increased and w ater supply must be
regulated with extra care. On applications where steam pressures
are below 100 psi, Penberthy “Low Pressure” Injectors are recom-
mended.
See Page 6 for Dimensions
STOCK MODEL SUPPLIED UNELSS OTHERWISE SPECIFIED
SIZE
NO.
*BOILER
HORSE-
POWER
RATING
PIPE
SIZE
CONN.
(IN.)
SHIPPING
WEIGHT
BOXED
(LB)
OO-21 12 3/8 2 1/2
AA-21 25 1/2 3 1/2
BB-21 50 3/4 5 1/2
CC-21 85 1 8
DD-21 150 1 1/4 12
EE-23 250 1 1/2 25
FF- 23 425 2 39
GG-21 600 2 1/2 75
*Boiler horsepower ratings based on supplying approximately 7 gallons of water per horse-
power per houre with 3 ft scution lift and 80 psi steam pressure.
Each injector is supplied with all bronze pipe strainer one size larger than injector connection
for installation at end of suction pipe.
Size 00-21 injector is provided with relief valve to facilitate starting at lower steam pressures.
Size 00-21 injector is supplied with two small strainers for insertion in the steam and water
supply union connections.
IMPORTANT
Injectors deliver their maximum capacity and operate to better satis-
faction n the intermediate zone of their pressure operating range.
When selecting an injector, in order to be assured of best possible
performance, refer to Pagers 5, 7 and 8 covering operating charac-
teristics of the Penberthy Standard, High Pressure and Low Pressure
Injectors.
See Page 9 for Installation Data and pate 11 for Repair Parts
5
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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