DR-A
LOW PRESSURE
BACK PRESSURE VALVE

APPLICATIONS:
For service on air, water, oil and other non-corrosive liquids
and gases.
SIZES: 1/2", 3/4", 1", 1-1/4"
FEATURES:
Controls
up to 25 psi. Automatically maintains desired pressure in a line
or system by discharging excess pressure to the atmosphere or
to a lower pressure system. All bronze, neoprene-nylon diaphragm,
composition disc, sensitive adjusting spring. On installation,
a "T" is placed in the inlet line and a sensing connection
is run from it to the top of the valve.
OPTIONS:
Can be furnished to control down to 1 psi on the inlet.
FOR
MORE INFORMATION, WRITE OR CALL
FOR BULLETIN.
FR, FR-6,
FR-10
0 TO 600
PSI BACK PRESSURE VALVES

APPLICATIONS:
Centrifugal, regenerative turbine, reciprocating or rotary pump
bypass valve. Protects pump systems from over-pressure.
SIZES: 1/2", 3/4", 1", 1-1/4", 1-1/2",
2"
FEATURES:
Protects
against periodic high pressures; maintains a desired inlet pressure
by relieving to a lower variable pressure, or to atmosphere. Relieves
dependably at adjusted pressures; shuts tight after relieving.
Features unique "Floating Ring" seating arrangement
that produces perfect seat contact. The FR valves afford unusually
close regulation, repeatability of opening pressure and close
reseating pressures. The FR-10 is for more economical, lower pressure
applications -maximum pressure setting 250 psi. (Provided with
iron body and spring housing only). Type FR is available in iron,
bronze, steel or stainless steel body; threaded connections; monel,
stainless steel or Buna-N diaphragm. Pressure settings from 0
to 400 psi. The FR-6 is available for 200 to 600 psi.
OPTIONS:
Can be used with two side inlets, bottom outlet, or angle
type with side inlet, bottom outlet. And can be furnished for
differential & dome loaded applications.
FOR MORE INFORMATION, WRITE OR CALL
FOR BULLETIN BPV-FR.
FRM, FRM-2
SMALL BACK
PRESSURE VALVES

APPLICATIONS:
For service on liquids, air and gases not corrosive to brass.
Recommended for bypass regulation on fuel oil systems, compressor
governor pilot control, and many small to medium pumping system
bypass jobs. Ideally suited for many applications in the cryogenic
field.
SIZES:
1/8", 1/4", 3/8" FRM
1/4", 3/8", 1/2" FRM-2
FEATURES:
Automatically maintains a constant inlet or back pressure. Functions
as a pressure limiting regulator, not as a safety device. Bronze
body, stainless steel seat ring and disc.
OPTIONS:
Furnished with either neoprene diaphragm (max. temp. 180°F
[82°C]) or metal diaphragms (max. temp. 500°F [255°C]),
in three body styles: side inlet, side outlet; side inlet, bottom
outlet; and two side inlets, one bottom outlet. Available with
stainless steel wetted parts. FRM maximum control pressure of
175 psi, FRM-2 maximum control pressure of 250 psi (may be modified
for higher pressures).
FOR MORE INFORMATION, WRITE OR CALL
FOR BULLETIN BPV-FR.
K-5, K-5C
ANGLE BACK
PRESSURE VALVES

APPLICATIONS:
Suitable for
pump systems of all kinds. Applicable on water, other fluids and
especially oils of all grades.
SIZES: 1", 1-1/4", 1-1/2", 2"
FEATURES:
High-capacity valves. For flow up to 200 gallons per minute in
the larger sizes. Bronze body and trim, threaded connections,
bottom & side female connections, brass spring chamber, stainless
steel adjusting spring, high temperature gaskets. K-5 has a metal
seat. K-5C has a soft seat for tight shut-off. Relief pressures
range from 5 to 150 psi.
FOR MORE INFORMATION, WRITE OR CALL
FOR BULLETIN BPV-K.