Series DCV/RDCV Diaphragm Valves Specifications - Installation and Operating Instructions Bulletin V-14 Phone: 219/879-8000www.dwyer-inst.com P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057e-mail: info@dwyermail.com The Series DCV/RDCV Dust Collection Valves are ideal for use with the Series DCT1000 and Series DCT500 duct collection timer boards. Both the Series DCV and RDCV 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 DCV has female threaded connections. Both the “C” and “T” versions have a 90° angle between the inlet and outlet the most suitable configuration for pulse valve applications. The design offers not only ease of installation, but also minimal airflow restriction for an exceptional cleaning pulse. The valves are offered in both integrated and remote coil configurations. SPECIFICATIONS Service:Compatible gases, filtered and oil free. Wetted Materials: Body: aluminum; Trim: 304 SS; Diaphragm and seals: NBR; Diaphragm disc: polyamide. Other Materials: Cover: aluminum; Body bolts and spring: 304 SS. Pressure Limits:Minimum of 4.4 psi (0.3 bar), maximum of 124.7 psi (8.6 bar). Temperature Limits: Ambient: -4 to 140°F (-20 to 60°C) for RDCV models, -4 to 122°F (-20 to 50°C) for DCV models; Operating: -4 to 185°F (-20 to 85°C). Power Requirements:110 VAC, 220 VAC, or 24 VDC for DCV models. Power Consumption:12 W, inrush: 17 VA; holding: 14.5 VA for DCV models. Electrical Connection:DIN connection for DCV models. Enclosure Rating:NEMA 4X (IP65) for DCV models. Process Connection:See model chart. Mounting Orientation:Any position. Model RDCV20T RDCV20C DCV20T1D DCV20C1D RDCV25T RDCV25C DCV25T1D DCV25C1D RDCV35T RDCV35C DCV35T1D DCV35C1D RDCV45T RDCV45C DCV45T1D DCV45C1D RDCV50T DCV50T1D RDCV62T DCV62T1D RDCV76T DCV76T1D Size 3/4˝ 1˝ 1-1/2˝ 1-1/2˝ 2˝ 2-1/2˝ 3˝ Number of Diaphragms 1 1 1 2 2 2 2 Series DCV/RDCV Model Guide Construction Size Connection Voltage Electrical Connections DCV RDCV 20 25 35 45 50 62 76 T C 1 2 3 D Integrated Coil Remote Coil 3/4˝ 1˝ 1-1/2˝ 1-1/2˝ (2 Diaphragms) 2˝ 2-1/2˝ 3˝ NPT Coupling (up to 1-1/2˝ only) 110 VAC (for integrated coil only) 220 VAC (for integrated coil only) 24 VDC (for integrated coil only) DIN (for integrated coil only) Solenoid Remote Remote Integral* Integral* Remote Remote Integral* Integral* Remote Remote Integral* Integral* Remote Remote Integral* Integral* Remote Integral* Remote Integral* Remote Integral* Connection NPT Coupling NPT Coupling NPT Coupling NPT Coupling NPT Coupling NPT Coupling NPT Coupling NPT Coupling NPT NPT NPT NPT NPT NPT *110 VAC with DIN Connector DCV62T1D DCV20C1D RDCV62T RDCV20C Cv Factor (gal/min) 14 23 42 51 106 136 167Model RDCV20T RDCV25T RDCV35T RDCV45T RDCV50T RDCV62T RDCV76T RDCV20C RDCV25C RDCV35C RDCV45C A (A mm) 3-15/16˝ (100) 4-1/8˝ (105) 5-1/8˝ (130) 5-25/32˝ (147) 8-1/16˝ (205) 8-9/32˝ (210) 8-19/32˝ (218) 4-13/32˝ (112) 4-5/8˝ (117) 5-13/16˝ (147) 5-25/32˝ (147) B (B mm) 2-31/32˝ (75) 3˝ (76) 4-29/32˝ (125) 5-5/32˝ (131) 5-7/8˝ (149) 6-11/16˝ (170) 7-27/32˝ (199) 4˝ (102) 5˝ (127) 5-15/32˝ (139) 6-25/32˝ (172) C (C mm) 3-7/16˝ (87) 3-1/4˝ (83) 4-3/8˝ (111) 4-3/8˝ (111) 7-1/4˝ (184) 7-1/4˝ (184) 7-7/8˝ (200) 3-7/16˝ (87) 3-1/4˝ (83) 4-3/8˝ (111) 4-3/8˝ (111) D (D mm) 2-3/16˝ (56) 2-1/2˝ (64) 4-1/2˝ (114) 3-5/8˝ (91) 4-15/32˝ (113) 4-21/32˝ (118) 4-21/32˝ (118) 2-5/8˝ (67) 3˝ (76) 3-5/8˝ (91) 3-5/8˝ (91) E (E mm) 25/32˝ (20) 7/8˝ (22) 1-9/32˝ (33) 3˝ (76) 1-9/16˝ (40) 1-29/32˝ (48) 2-1/2˝ (63) 1-25/32˝ (45) 2-3/4˝ (70) 3˝ (76) 3˝ (76) Connection NPT Coupling RDCV Dimensional Chart C WIDTH RDCV20T RDCV25T RDCV35T RDCV20C RDCV25C RDCV35CC WIDTH C WIDTH RDCV45TMRDCV45CM C WIDTH C WIDTH RDCV50TM RDCV62TM RDCV76TM C Model DCV20T1D DCV25T1D DCV35T1D DCV45T1D DCV50T1D DCV62T1D DCV76T1D DCV20C1D DCV25C1D DCV35C1D DCV45C1D B (B mm) 4-13/16˝ (122) 4-31/32˝ (126) 6-1/16 (154) 7-7/32˝ (183) 7-29/32 (201) 8-3/4˝ (222) 9-7/8˝ (251) 5-27/32˝ (148) 6-21/32˝ (177) 7-21/32˝ (194) 8-27/32˝ (224) A (A mm) 3-15/16˝ (100) 4-1/8˝ (105) 5-1/8˝ (130) 5-1/8˝ (130) 8-1/16˝ (205) 8-9/32˝ (210) 8-19/32˝ (218) 4-13/32˝ (112) 4-5/8˝ (117) 5-13/16˝ (147) 5-25/32˝ (147) C (C mm) 3-7/16˝ (87) 3-1/4˝ (83) 4-3/8˝ (111) 4-3/8˝ (111) 7-1/4˝ (184) 7-1/4˝ (184) 7-7/8˝ (200) 3-7/16˝ (87) 3-1/4˝ (83) 4-3/8˝ (111) 4-3/8˝ (111) D (D mm) 2-3/16˝ (56) 2-1/2˝ (64) 4-1/2˝ (114) 4-1/2˝ (114) 4-15/32˝ (113) 4-21/32˝ (118) 4-21/32˝ (118) 2-5/8˝ (67) 3˝ (76) 3-5/8˝ (91) 3-5/8˝ (91) E (E mm) 25/32˝ (20) 7/8˝ (22) 1-9/32˝ (33) 1-9/32˝ (33) 1-9/16˝ (40) 1-29/32˝ (48) 2-1/2˝ (63) 1-25/32˝ (45) 2-3/4˝ (70) 3˝ (76) 3˝ (76) DCV20T2D DCV25T2D DCV35T2D DCV45T2D DCV50T2D DCV62T2D DCV76T2D DCV20C2D DCV25C2D DCV35C2D DCV45C2D DCV20T3D DCV25T3D DCV35T3D DCV45T3D DCV50T3D DCV62T3D DCV76T3D DCV20C3D DCV25C3D DCV35C3D DCV45C3D DCV20T3L DCV25T3L DCV35T3L DCV45T3L DCV50T3L DCV62T3L DCV76T3L DCV20C3L DCV25C3L DCV35C3L DCV45C3L DCV20T1L DCV25T1L DCV35T1L DCV45T1L DCV50T1L DCV62T1L DCV76T1L DCV20C1L DCV25C1L DCV35C1L DCV45C1L DCV20T2L DCV25T2L DCV35T2L DCV45T2L DCV50T2L DCV62T2L DCV76T2L DCV20C2L DCV25C2L DCV35C2L DCV45C2L DIN Electrical ConnectionLead Wires Electrical Connection Connection NPT Coupling DCV Dimensional Chart C WIDTH C WIDTH C WIDTH C WIDTH C WIDTHWiring Connections (For DCV units) Wire in accordance with the National Electrical Code and local regulations. To aid in wiring the solenoid on the DCV may be rotated 360°. It is recommended to use 18 AWG copper wire rated at 90°C or greater. Wiring the DCV with DIN connector. See Figure 1. 1.Remove center screw and pull wiring assembly from the body. 2. Remove gasket and place small screwdriver in slot to pry out the terminal block from the cover. 3. Thread wire through the gland nut, gland gasket, washer and connector cover. 4. Connect wires to proper terminals on the terminal block. 5. Snap terminal block back into the cover. The connector cover may be rotated in 90° increments to position the cable entry as needed for the application. Reinstall the center screw and screw back into the solenoid body. MAINTENANCE Warning: To prevent the possibility of death, serious injury or property damage, turn off electrical power, depressurize system and unit, and vent fluid to a safe area before servicing. The DCV/RDCV should be cleaned periodically. The amount of time between cleanings depends on the application. Preventive Maintenance includes keeping media clean of material and oil free, and periodic testing to ensure proper operation and to look for wear or damage. Replacement diaphragm assemblies are available from the factory. OPERATION Series DCV includes an integral solenoid and Series RDCV needs to be used with a remote pilot solenoid valve. Both are normally closed valves. When the remote pilot solenoid valve or integral solenoid opens, pressure is released (exhausted) from the top of the diaphragm in the pulse valve. This allows the line pressure on the bottom of the diaphragm to push the diaphragm up and open the main orifice of the pulse valve. When the solenoid then closes the pressure on the bottom and the top of the diaphragm equalize closing the main orifice of the pulse valve. INSTALLATION Warning:Before installation make sure all air pressure has been released, electric power has been turned off, and air pressure source has been closed. Turn power on and increase pressure only after installation is complete. LOCATION Select a location that will not exceed the ambient temperature specifications of the valve. The system must be located in an enclosure that meets relevant safety standards and electrical codes of the environment. MOUNTING The DCV/RDCV can be mounted in any position. For optimum life and performance it is recommended that the unit be mounted vertically and upright to reduce the chance of foreign matter accumulating in the valve. For DCV in weatherproof applications it is recommended that the cable gland be positioned face down to avoid possible rainfall or water from entry. PROCESS CONNECTIONS For DCV/RDCV with coupling connections: 1.Connect piping so that pneumatic input is the bottom connection and the outlet is the side connection at 90°. 2. Stub pipe (blow tube) must be free of burrs, rust, oil, and other debris. 3. Disassemble compression fittings and place the retaining nut, retainer, and gas ket onto the piping. Make sure that the beveled edge of the gasket faces the valve body. 4. Connect fittings to the valve body. Make sure that the pipe is inline with the valve ports. Nut and seals are for connection only and should not be used for support purposes. Notes: •Make sure pipes are anchored securely to avoid separation from the valve. • Do not use the valve for leverage when connecting piping. • Do not over-tighten retaining nut or valve damage may result. Tighten retaining nuts just sufficiently for sealing to prevent leakage. This is a gasket seal and does not require excessive turning of the nut. For DCV/RDCV with NPT connections: 1.Connect piping so that pneumatic input is the bottom connection and the outlet is the side connection at 90°. 2.Stub pipe (blow tube) must be free of burrs, rust, oil, and other debris. 3. Thread piping into the valve body. Make sure that the pipe is inline with the valve ports. If using tape or pipe compound, apply to the male piping threads and use sparingly as it may come loose and affect valve operation. Do not apply tape or pipe compound directly to the female valve body threads. Notes: • Make sure pipes are anchored securely. • Do not use the valve for leverage when connecting piping. Pressure Connection from Remote Pilot Solenoid Valve (For RDCV units) The RSV, remote pilot solenoid valve, should be mounted as close as possible to the RDCV pulse valve. The maximum distance is 9.8 ft (3 m). Tubing from the remote solenoid valve is connected to the exhaust port on the top of the RDCV pulse valve. If using tape or pipe compound, apply to the male piping threads and use sparingly as it may come loose and affect valve operation. Do not apply tape or pipe compound directly to the female valve body threads. Figure 1©Copyright 2014 Dwyer Instruments, Inc.Printed in U.S.A. 9/14FR# RV-443335-01 Rev. 2 Phone: 219/879-8000www.dwyer-inst.com P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057e-mail: info@dwyermail.com WARRANTY The Series DCV/RDCV is not field serviceable and should be returned if repair is needed (field repair should not be attempted an may void warranty). Be sure to include a brief description of the problem plus any relevant application notes. Contact customer service to receive a return goods authorization number before shipping. Problem No pulse Leakage in outlet port Low pulse Shaking noise Solenoid noise Possible Cause No supply air Air pressure is too high No voltage to RSV Solenoid is damaged Improper installation of inlet port Low air pressure Valve screws are loose Solenoid mounting screws are loose Action Required Check whether the air compressor and valve have been turned on Check the pressure of the air supply Check supply voltage Send back for evaluation Check the pipe connections between the inlet and outlet Check air supply pressure Verify that the air supply was distributed properly Tighten the loose screws Tighten the loose screws Solenoid Valve TroubleshootingNext >