Dwyer Instruments SERIES DCS, SERIES RDCS Catalog Page
Series
DCS/RDCS
Springless Diaphragm Valves
Pulse Valve, Ideal for Dust Collection Systems and Bag Houses
DCS35T1D
DCS35C1D
The Series DCS/RDCS Springless Dust Collection Valves are ideal for use with
the Series DCT1000 and Series DCT500 duct collection timer boards. A springless design
offers not only durability, but also reliability for an exceptional cleaning pulse. Both the
Serie s DCS and RDCS have the option for either coupling or NPT connections. The
coupling connection allows for a quick and simple installation. Only the stub pipe and
blowtube need to be cleaned and deburred before the valve is fit into position. The “T”
Series DCS has fema le threaded connections and the “C” Series DCS has a coupling
connection. Both the “ T” and “C” versions have a 90° angle between the inlet and outlet:
the most suitable configuration for pulse valve applications. The valves are offered in both
integrated and remote coil configurations.
VALVES
EATURES
Thermoplastic polyurethane diaphragm for longer life
High flow factor for effective cleaning
Unique diaphragm design eliminates spring
Valve can be mounted in any position
Quick on & off response time
ACCESSORIES
A-237, Muffler
BDA-5030-Q, 3/4˝ DCS/RDCS Pulse Valve Replacement Diaphragm
BDA-5230-Q, 1˝ DCS/RDCS Pulse Valve Replacement Diaphragm
BDA-5430-Q, 1-1/2˝ DCS/RDCS Pulse Valve Replacement Diaphragm
RSV1D-COIL, 110 VAC DIN Replacement Solenoid Coil
RSV2D-COIL, 220 VAC DIN Replacement Solenoid Coil
Valves,
RSV3D-COIL, 24 VAC DIN Replacement Solenoid Coil
Diaphragm Pulse
Cv
Model
RDCS20T
RDCS20C
DCS20T1D
DCS20C1D
RDCS25T
RDCS25C
DCS25T1D
DCS25C1D
RDCS35T
RDCS35C
DCS35T1D
DCS35C1D
*110 VAC with DIN Connector
Series DCS/RDCS Model Guide
Construction
Size
Connection
Voltage
Size
3/4˝
3/4˝
3/4˝
3/4˝
1˝
1˝
1˝
1˝
1-1/2˝
1-1/2˝
1-1/2˝
1-1/2˝
DCS
RDCS
Solenoid
Remote
Remote
Integral*
Integral*
Remote
Remote
Integral*
Integral*
Remote
Remote
Integral*
Integral*
20
25
35
T
C
1D
2D
3D
Connection
NPT
Coupling
NPT
Coupling
NPT
Coupling
NPT
Coupling
NPT
Coupling
NPT
Coupling
Integrated coil
Remote coil
3/4˝
1˝
1-1/2˝
NPT
Coupling
110 VAC DIN (for integrated coil only)
220 VAC DIN (for integrated coil only)
24 VDC DIN (for integrated coil only)
Number of
Diaphragms
1
1
1
1
1
1
1
1
1
1
1
1
Factor
(gal/min)
14
14
14
14
23
23
23
23
42
42
42
42
RDCS20C
RDCS35T
SPECIFICATIONS
Service: Compatible gases, filtered and oil free.
Wetted Materials:
Body: Aluminum;
Diaphragm disc: Thermoplastic polyurethane;
Solenoid seals: NBR.
Other Materials:
Cover: Aluminum;
Body bolts: Zinc plated SS;
Solenoid: Nylon.
Pressure Limits: Min. of 4.4 psi (0.3 bar), max. of 124.7 psi (8.6 bar).
Temperature Limits:
Ambient: -4 to 140°F (-20 to 60°C);
Operating: -4 to 185°F (-20 to 85°C).
Power Requirements: 110 VAC, 220 VAC, or 24 VDC for DCS models.
Power Consumption: 12 W; Inrush: 17 VA; Holding: 14.5 VA for DCS models.
Electrical Connection: DIN connection for DCS models.
Enclosure Rating: NEMA 4X (IP65) for DCS models.
Process Connection: See model chart.
Mounting Orientation: Any position.
Agency Approval: CE.
DIAPHRAGM VALVE CONSTRUCTION
NEMA 4X (IP65)
Solenoid Coil
Solenoid
Cover
Unique Diaphragm
Design Eliminates
Need for a
Spring
Diaphragm
Body
RDCS35C
Integrated Solenoid
Stem
Robust Die Cast
Aluminum Body
502
DWYER INSTRUMENTS, INC.
AIR INLET
DIAPHRAGM
FLOW
OUTLET
EXHAUST
B
E
D
A
B
E
D
A
F
F
C
C
Series
DCS/RDCS
Springless Diaphragm Valves
Dimensional Chart
VALVES
DCS Dimensional Chart
Connection
NPT
Coupling
RDCS Dimensional Chart
Connection
NPT
Coupling
Operating Principle
The valve is divided into two chambers by a diaphragm. These upper and lower chambers are connected by a small air passage so both chambers see the same pressure.
When the exhaust is closed air cannot vent out of the upper chamber and the valve stays closed as shown in Figure 1. When the exhaust on the upper chamber is opened the
air pressure decreases on top of the diaphragm allowing the air pressure on the bottom to force open the valve by pushing the diaphragm up as shown in Figure 2. When the
valve opens an abrupt air blast comes through the valve outlet and is directed by the dust collector to the dirty filter. The air pulse then blows out through the filter from the inside
blowing the particulate accumulation off of the filter to clean it. After the air pulse the pressure in the upper and lower chamber will equalize and the diaphragm will return to the
closed position. The valve exhaust port is controlled by either an integral or remote solenoid.
Model
DCS20TxD
DCS25TxD
DCS35TxD
DCS20CxD
DCS25CxD
DCS35CxD
Model
RDCS20T
RDCS25T
RDCS35T
RDCS20C
RDCS25C
RDCS35C
A (mm)
3-1/8˝ (79.38)
3-19/64˝ (83.74)
4-11/32˝ (110.33)
4-9/64˝ (105.17)
4-7/16˝ (112.71)
5-23/64˝ (136.13)
A (mm)
3-1/8˝ (79.38)
3-19/64˝ (83.74)
4-11/32˝ (110.33)
4-9/64˝ (105.17)
4-7/16˝ (112.71)
5-23/64˝ (136.13)
B (mm)
2-47/64˝ (69.45)
3-7/32˝ (81.76)
3-43/64˝ (93.27)
3-25/64˝ (86.10)
4-43/64˝ (118.67)
5-21/64˝ (135.33)
B (mm)
2-47/64˝ (69.45)
3-7/32˝ (81.76)
3-43/64˝ (93.27)
3-25/64˝ (86.1)
4-43/64˝ (118.67)
5-21/64˝ (135.33)
C (mm)
2-45/64˝ (68.66)
2-53/64˝ (71.83)
3-1/2˝ (88.9)
2-45/64˝ (68.66)
2-53/64˝ (71.83)
3-1/2˝ (88.9)
C (mm)
2-45/64˝ (68.66)
2-53/64˝ (71.83)
3-1/2˝ (88.9)
2-45/64˝ (68.66)
2-53/64˝ (71.83)
3-1/2˝ (88.9)
D (mm)
1-37/64˝ (40.08)
1-55/64˝ (47.23)
2-17/32˝ (64.29)
2-39/64˝ (66.28)
3˝ (76.20)
3-35/64˝ (90.09)
D (mm)
1-37/64˝ (40.08)
1-55/64˝ (47.23)
2-17/32˝ (64.29)
2-39/64˝ (66.28)
3˝ (76.20)
3-35/64˝ (90.09)
E (mm)
1-15/64˝ (31.35)
1-31/64˝ (37.70)
1-15/32˝ (37.31)
1-51/64˝ (45.64)
2-49/64˝ (70.25)
2-61/64˝ (75.01)
E (mm)
1-15/64˝ (31.35)
1-31/64˝ (37.70)
1-15/32˝ (37.31)
1-51/64˝ (45.64)
2-49/64˝ (70.25)
2-61/64˝ (75.01)
F (mm)
2-5/32˝ (54.77)
2-11/32˝ (59.53)
2-3/8˝ (60.33)
2-11/64˝ (55.17)
2-23/64˝ (59.93)
2-3/8˝ (60.33)
Diaphragm Pulse
Valves,
Figure 1: Closed Position
Figure 2: Open Position
503
Loading...