cash_acme_d53_300

cash_acme_d53_300
CASH VALVE TYPE D-53
CONTROL VALVES
Designed to control the flow of a fluid or air by an independent pressure applied to the valve diaphragm
Description
Application
The Cash Valve Type D-53 valve is a
pressure operated diaphragm type
control valve. It is designed for use in
systems where it is desirable to control
the flow of a fluid or air by applying an
independent pressure to the control valve
diaphragm. The D-53 is available in two
basic types (see features section):
The Type D-53 control valve is suitable
for service with water, air, oil, or any
non-corrosive fluid. It is designed for
systems with inlet pressures up to 250
psi and temperatures to 180°F. The
maximum diaphragm loading pressure
must not exceed 300 psi. Typical Type
D-53 installations include use as a
cooling water control valve for water
cooled air compressors, as an air
compressor dump valve, as an explosive
atmosphere valve, or as a substitute for
expensive electric solenoids.
– Normally open; closed by
diaphragm pressure.
– Normally closed; opened by
diaphragm pressure.
The basic Type D-53 valve is either
completely closed or completely open;
there are no intermediate positions.
Features
• Available in 1/2", 3/4", 1", 11/4", 11/2",
and 2" sizes with threaded connections.
Diaphragm connection is 1/8" on 1/2"
and 3/4" valves and 1/4" on all other
valves.
• Designed to be installed in any system
where it is desirable to control the
flow of a fluid or air by an independent
pressure applied to the valve diaphragm.
CAVMC-0520-US-1212
Copyright © 2012 Pentair
• For maximum hookup flexibility, the
diaphragm pressure connection may
be indexed to any of four positions:
- Over inlet
- Over outlet
- Over either side
• Full port diameter means full capacity
and low pressure drop through the valve.
• Larger 11/2" and 2" sizes are
constructed with a fully balanced inner
valve for both inlet and outlet pressures
up to 250 psi. Thus the operating
pressure requirements are not changed
by variations in the system pressure.
• Parts for larger 11/2" and 2" normally
open and normally closed valves are
interchangeable making it relatively
easy to change from a normally open
to a normally closed valve or vice versa.
WWW.PENTAIR.COM/VALVES
CASH VALVE TYPE D-53
CONTROL VALVES
3/4" Type D-53
Normally Open
3/4" Type D-53
Normally Closed
Construction/Specifications
11/2", 2" Type D-53
Normally Open
Diaphragm Pressure Requirements* (to fully open or fully close valve)
Inlet
Pressure (psi)
The Type D-53 control valve is fitted
with a bronze body, renewable 303
stainless steel plated valve seat of full
port diameter, a renewable BUNA-N
composition seat disc, a BUNA-N
nylon diaphragm, and rust resistant
steel bolts.
A
Normally Closed Valve
(Pressure to fully open [psi])
Normally Open Valve
(Pressure to fully close [psi])
0
20
20
50
20
25
100
20
30
150
20
35
200
20
40
250
20
45
11/2"
Note: Diaphragm pressure requirements for
and 2 sizes are 20 psi to fully open a normally closed
valve and 20 psi to fully close a normally open valve.
* Open for 1/2" thru 11/4" sizes.
B
Dimensions
Size
C
Type D-53
Normally Closed
Top
Connection*
C
A
B**
N.O.
N.C.
Ship. WT.
(lbs)
1/2"
1/8"
27/8"
115/16"
17/16"
17/8"
3
3/4"
1/8"
27/8"
115/16"
17/16"
17/8"
3
1"
1/4"
57/8"
31/2"
27/8"
27/8"
7
11/4"
1/4"
57/8"
31/2"
27/8"
27/8"
7
11/2"
1/4"
57/8"
4"
27/8"
27/8"
19
2"
1/4"
57/8"
4"
27/8"
27/8"
19
* Top connection extends vertically upward on 1" thru 2" body sizes.
** “B” dimension extends to the height of the top connection on 1" thru 2" body sizes.
page 2
CAVMC-0520-US-1212
Copyright © 2012 Pentair
CASH VALVE TYPE D-53
CONTROL VALVES
Capacity Information
How To Find Water Capacity For
Cash Valve Type D-53
Water Capacity Chart
2. Locate the given gpm capacity on the
water flow ordinate (see chart).
3. Draw a horizontal line from the
pressure drop point and a vertical
line from the flow capacity point.
Mark their intersection. Select the
diagonal valve sizing line to the right
of this intersection point. Either of
the two sizes is the correct valve for
the given service conditions. Do not
select a valve size to the left of an
intersection point.
Valve Pressure Drop (psi)
1. Determine the pressure drop (psi)
across the valve (Inlet Pressure minus
Outlet Pressure). Locate this valve on
the pressure drop ordinate (see chart).
Example:
Given Inlet Pressure 20 psi, Outlet
Pressure 10 psi, Flow 20 gpm.
(1) Pressure Drop = 10 psi. Locate this
point on the pressure drop ordinate.
(2) Locate the 20 gpm point on the water
flow ordinate.
Water Flow (gpm)
Cv=
1/2"
and 3/4"
2.5
1" and 11/4"
12.0
11/2" and 2"
35.0
(3) The 10 psi horizontal pressure drop
line and the vertical 20 gpm water
flow line intersect between the
1/2" – 3/4" and 1" – 11/4" sizing lines.
The closest valve size to the right
of the intersection point is the 1"
or 11/4" size. Select either of these
two sizes.
(4) Maximum valve capacity = 38 gpm.
Notes:
1. Consult the factory for valve sizing with
pressure drops greater than 100 psi.
2. Maximum Valve Capacity of a selected valve
size is found by drawing a horizontal line from
the already determined intersection point to
the valve sizing line. From this new point, draw
a vertical line down to water flow ordinate. The
maximum capacity of the valve is where this
vertical line intersects the water flow ordinate.
Copyright © 2012 Pentair
CAVMC-0520-US-1212
page 3
CASH VALVE TYPE D-53
CONTROL VALVES
Capacity Information (Continued)
How To Find Air Capacity For Cash
Valve Type D-53
Air Capacity Chart
Valve Pressure Drop (psi)
1. Determine the pressure drop (psi)
across the valve (Inlet Pressure
minus Outlet Pressure). Locate this
valve on the pressure drop ordinate
(see chart).
2. Locate the given scfm capacity point
on the air flow ordinate (see chart).
3. Draw a horizontal line from the
pressure drop point and a vertical
line from the flow capacity point.
Mark their intersection. Select the
group of curves to the right of the
intersection point. The inlet pressure
curve must always be to the right of
the intersection point. If not, the valve
size must be obtained from the next
group of inlet pressure curves – to
the right of the intersection point
(see the example).
Example:
Air Flow (scfm)
Given Inlet Pressure 20 psi, Outlet
Pressure 10 psi, Flow 200 scfm.
Notes:
(1) Pressure Drop is 10 psi. Locate this
point on the pressure drop ordinate.
2. Inlet pressure curves for pressures other than
10, 25, 50 or 100 psi should be proportionately
spaced and drawn parallel to the given higher
and lower inlet pressure curves.
(2) Locate the flow of 200 scfm on the air
flow ordinate.
(3) Mark the point where the 10 psi and
200 scfm lines intersect. Notice the
intersection point is to the right of
the inlet pressure curve of 20 psi.
Therefore, a 1" or 11/4" valve should
not be selected. Rather, a 11/2" or 2"
valve should be chosen from the next
group of inlet pressure curves – to the
right of the intersection point.
1. Consult the factory for valve sizing with
pressure drops greater than 100 psi.
3. Maximum valve capacity is found by drawing
a horizontal line from the intersection point to
the valve size inlet pressure curve. From this
new point draw a vertical line down to the air
flow ordinate. The maximum capacity of the
valve is where this vertical line intersects the
air flow ordinate.
(4) Maximum valve capacity = 540 scfm.
How To Order
To order, specify Cash Valve type by
specific series designation. Also state the
following:
1. State whether valve should be
normally open or normally closed
3. Service (water, air, oil, etc.)
7. System operating temperature
4. Inlet pressure
8. Loading pressure
5. Outlet or pressure range and setting
9. Optional features, if any, as described
for a specific valve.
6. Maximum flow rate desired
2. Valve size
5500 WAYZATA BLVD # 800, MINNEAPOLIS, MN 55416 WWW.PENTAIR.COM/VALVES
Cash Valve; 953 Old U.S. Highway 70; Black Mountain, NC 28771; Phone: 800-879-2042 • WWW.CASHVALVE.COM
All Pentair trademarks and logos are owned by Pentair, Inc. All other brand or product names are trademarks or registered marks of their respective owners. Because we are continuously improving our products and
services, Pentair reserves the right to change specifications without prior notice. Pentair is an equal opportunity employer.
page 4 CAVMC-0520-US-1212
Copyright © 2012 Pentair
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