Vindum CV Series Manuel utilisateur
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CV-Series
High-Pressure Valves
USER GUIDE
369 Syringa Ridge
Sandpoint, ID 83864
281.782.8312
www.vindum.com
support@vindum.com
V:1.2 (3-07-17)
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Copyright 2005-2017
Vindum Engineering, Inc. All rights reserved. Reproducon or use of contents in any manner is prohibited
without express permission from Vindum Engineering. While every precauon has been taken in the prepara-
on of this manual, the publisher assumes no responsibility for errors or omissions. Neither is any liability
assumed for damages resulng from use of the informaon contained herein.
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Table of Contents
Chapter 1 General Overview..................................................................................................1
1.1 Conguraon ............................................................................................................................ 1
1.2 Main O-Ring Seal Material ........................................................................................................ 1
1.3 Pressure Rang ......................................................................................................................... 1
1.4 Solenoid Pilot Valve .................................................................................................................. 2
1.5 Valve Temperature Rang ........................................................................................................ 2
1.6 Weed Parts ............................................................................................................................. 2
1.7 Everything you need to operate your CV Valve........................................................................ 2
1.8 Addional Informaon.............................................................................................................. 3
1.8.1 CV Valve Models .................................................................................................. 3
1.8.2 CV Valve Size ....................................................................................................... 4
Chapter 2 Understanding Your Valve...................................................................................5
2.1 Principles of Operaon for the 2-Way Valve ............................................................................ 5
2.1.1 Possible Conguraons of the 2-Way Valve.................................................................. 5
2.1.2 Direcon of Flow............................................................................................................ 5
2.2 Principles of Operaon for the 3-Way Valve ............................................................................ 5
2.2.1 Possible Conguraons of the 3-Way Valve.................................................................. 5
2.2.1.1 Open / Closed Posion (A1 / B2) ...................................................................... 6
2.2.1.2 Closed / Open Posion (B1 / A2) ...................................................................... 6
2.2.1.3 Open / Open Posion (A1 / A2) ........................................................................ 6
2.2.1.4 Closed / Closed Posion (B1 / B2) .................................................................... 6
Chapter 3 Solenoid Pilot Valves & Manifolds....................................................................7
3.1 Air Supply Requirements .......................................................................................................... 7
3.1.1 Air Input and Output............................................................................................ 7
3.2 Electrical Power......................................................................................................................... 8
3.3.1 Power Failure Opons.......................................................................................... 8
3.3 High Temperature CV Valves .................................................................................................... 9
Chapter 4 CV-200 Series & CV-400 Series Valve Maintenance....................................11
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4.1 Tools You Will Need ................................................................................................................ 11
4.2 Disassembling the 2-Way Valve.............................................................................................. 11
4.3 Disassembling the Piston Assembly........................................................................................ 12
4.4 Disassembling the Sleeve Assembly ....................................................................................... 12
4.5 Inspecng the Sleeve and Cone.............................................................................................. 13
4.6 Reassembling the Sleeve Assembly ........................................................................................ 13
4.7 Reassembling the Piston Assembly......................................................................................... 14
4.8 Reassembling the 2-Way Valve............................................................................................... 14
Chapter 5 CV-300 Series & CV-500 Series Valve Maintenance ..................................17
5.1 Dierences Between the CV 2-Way and 3-Way Valves.......................................................... 17
5.2 Disassembling the 3-Way Valve.............................................................................................. 17
5.3 Disassembling the Piston Assembly........................................................................................ 18
5.4 Disassembling the Sleeve Assembly ....................................................................................... 18
5.5 Reassembling the Sleeve Assembly ........................................................................................ 18
5.6 Reassembling the Piston Assembly......................................................................................... 18
5.7 Reassembling the 3-Way Valve............................................................................................... 18
Chapter 6 Maintenance & Troubleshoong ....................................................................21
6.1 Air Supply Problems................................................................................................................ 21
6.1.1 Solenoid Pilot Valve Visual Check ................................................................................ 21
6.1.1.1 If the Light Goes On and O for a Dierent Solenoid Pilot Valve................... 21
6.1.1.2 If No Light Goes On or O............................................................................... 22
6.1.2 Solenoid Pilot Valve Audio Check ................................................................................ 22
6.1.2.1 No “Air Escaping” Sound When CV Valves Are Opened & Closed.................. 22
6.1.2.2 The Air Supply is Not Dry ................................................................................ 22
6.1.2.3 The Air Pressure is Too Low............................................................................ 23
6.1.2.4 The Air Pressure is Too High ........................................................................... 23
6.1.2.5 Constant “Air Escaping” Sound....................................................................... 23
6.1.2.6 Compressed Air Supply Runs Out Quickly ...................................................... 24
6.2 Fluid Supply Problems............................................................................................................. 24
6.2.1 Fluid Leaks from the CV Valve Bleed Port.................................................................... 24
6.2.2 Fluid Leaks Across a “Closed” Valve............................................................................. 25
6.2.3 Fluid Leaks Into Air Tubes ............................................................................................ 25
6.2.4 Fluid is Not Traveling Properly..................................................................................... 25
Appendix 1: Removal & Replacement of the Cone ........................................................27
Appendix 2: CV-210 & CV-310 Valve Components .........................................................30
Appendix 3: CV-405 & CV-505 Valve Components .........................................................31
Appendix 4: CV-410 & CV-510 Valve Components .........................................................32
Appendix 5: CV-420 & CV-520 Valve Components .........................................................33
Appendix 6: Commercially Available Parts .......................................................................34
A.6.1 Fluid Fings..........................................................................................................................34
A.6.2 Pilot Valves / Air Manifold ........................................................................................................35
A.6.3 Lubricants and Adhesives .........................................................................................................35
Appendix 7: O-Ring Compability Chart............................................................................36
Appendix 8: Quote Request / Order Form........................................................................37
Index.............................................................................................................................................38
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Chapter 1
1. General Overview
The Vindum Engineering CV High Pressure Valves are available in two conguraons; either as a 2-posion,
on/o valve, or a 3-way, 4-posion valve. The CV Valves are air-actuated, constant-volume valves with a
switching me of less than .1 second. They are typically used as switching devices in high-pressure uid ow
systems. The valves are designed so that no uid is displaced when they are opened or closed. This allows
them to be useful in systems requiring constant volumes or constant pressures during the switching cycle.
All weed parts on CV Valves ulize either 316 stainless steel, which is corrosion resistant, or Hastelloy© C-
276, which is used for brine applicaons or highly corrosive uids. Our standard valves have a temperature
rang of 180°F (80°C). Valves with our high temperature opon have a temperature rang of 320°F (160°C).
1.1 Conguraon
Each CV Valve is customized to the needs of the user by ulizing the following opons:
The CV Valve can be built as either:
•2-Way, on/o valve, which uses a single solenoid pilot valve
•3-Way, 4 posion valve which uses 2 solenoid pilot valves. The 3-way, 4-posion valve contains two inde-
pendently operated valves that are connected with a center ng (tee).
Solenoids to control the valve are sold separately. Solenoids can be ordered singly or in manifold with up to
twelve staons.
1.2 Main O-Ring Seal Material
The following materials are available for the weed O-ring. The weed O-ring material needs to agree with
the uid used. See Appendix 7 or online sources (such as the Parker O-ring handbook) for chemical combabil-
ity
•Aas
•Buna
•Teon™
•UHMW
•Viton
•Other materials on request
1.3 Pressure Rang
The CV-Valves can have a pressure rang of either 5,000; 10,000; or 20,000 psi.
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1.4 Solenoid Pilot Valve
The solenoid pilot valves for the 85 to 115 psi air supply can be operated by either:
•12 Vdc
•24 Vdc
Note: The standard voltage is 12 Vdc, 24 Vdc is available on request.
1.5 Valve Temperature Rang
•Standard ambient temperature CV-Valves operate up to 180°F (80°C), and have push-in type air line
ngs.
•Oponal high temperature CV-Valves operate up to 320°F (160°C), and have compression type air line
ngs
Note: air line ngs are the only dierence between ambient and high temperature valves.
1.6 Weed Parts
There are two opons of materials for the valve’s weed parts, or the parts of the valve that will come in con-
tact with the uid:
•316 Stainless Steel for inert materials, or
•Hastelloy C-276 for corrosive materials or brine
1.7 Everything you need to operate your CV Valve
•Valve
•High Pressure Fings
•Pneumac ngs
Sold Separately
•Solenoid Pilot Valves
•1/8” air tubing
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1.8 Addional Informaon
1.8.1 CV Valve Models
Table 1-1
CV VALVE MODELS
Valve
Model
Maximum
Pressure
Rang [PSI (Bar)]
Internal
Volume (cc)
Approximate
Flow
Coefficient (Cv)
2-Way On-O Valves
CV-210 10,000 (700) 0.11 .06
CV-405 5,000 (350) 0.44 .24
CV-410 10,000 (700) 0,44 .12
CV-420 20,000 (1400) 0.22 .03
3-Way 4 Posion Valves
CV-310 10,000 (700) 0.31 .06
CV-505 5,000 (350) 1.08 .24
CV-510 10,000 (700) 0.74 .12
CV-520 20,000 (1400) 0.62 .03
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1.8.2 CV Valve Sizes
Valve Size
Valve
Model
Fings
(Autoclave Engineers)
Valve
Dimensions
2-Way On-O Valves
CV-210 W125 - 1/8” Speedbite
2” diameter x 1.695”
(5.0 cm x 4.3 cm)
CV-405 SW250 - 1/4” Speedbite 2.25” diameter x 1.95”
(5.7 cm x 4.9 cm)
CV-410 SW250 - 1/4” Speedbite
2.25” diameter x 1.95”
(5.7 cm x 4.9 cm)
CV-420 F250C - 1/4” High Pressure
2.25” diameter x 1.95”
(5.7 cm x 4.9 cm)
3-Way 4 Posion Valves
CV-310 W125 - 1/8” Speedbite
2” diameter x 3.645”
(5.0 cm x 9.2 cm)
CV-505 SW250 - 1/4” Speedbite
2.25” diameter x 4.435”
(57 cm x 11.3 cm)
CV-510 SW250 - 1/4” Speedbite
2.25” diameter x 4.435”
(57 cm x 11.3 cm)
CV-520 F250C - 1/4” High Pressure
2.25” diameter x 4.435”
(57 cm x 11.3 cm)
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1
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