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Summary of Contents for Kobelt 3329
- Page 1 3329 Relay Valve Owner’s Operation, Installation & Maintenance Manual...
- Page 2 3329 Manual KOBELT MANUFACTURING CO. LTD NOTES RECORD DATA BEFORE INSTALLATION FOR FUTURE REFERENCE Model #: Serial #: Date of Purchase: Date of Installation: Rev A MNL-3329.docx...
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Page 3: Table Of Contents
3329 Manual KOBELT MANUFACTURING CO. LTD Table of Contents Introduction ........................3 Contact ............................3 Safety ............................3 1.2.1 Safety Alerts .......................... 3 1.2.2 Notice to Installer ........................3 1.2.3 Product Hazards ........................4 Product Description .......................5 Overview............................ 5 Basic Operating Principle ......................6 Technical Data ........................... -
Page 4: Introduction
This document is intended to clearly present comprehensive product data and provide technical information to assist the end user in design applications. Kobelt reserves the right, without notice, to change the design, or construction, of any products and to discontinue or limit distribution of any products. -
Page 5: Product Hazards
Ensure that all power sources are locked out prior to performing work. High Pressure Fluids: The 3329 relay valve uses compressed air. Ensure all pressure is exhausted and the pressure source locked out prior to performing work. Noise Pollution: The 3329 relay valve exhausts high velocity air. -
Page 6: Product Description
RODUCT ESCRIPTION VERVIEW The Kobelt 3329 relay valve permits proportional control of air applied brakes. The pressure output is directly regulated by the pilot pressure. These units are available in three versions: remotely piloted, electro-proportional control and electro- proportional with safety bypass functionality. -
Page 7: Basic Operating Principle
KOBELT MANUFACTURING CO. LTD ASIC PERATING RINCIPLE The purpose of the 3329 relay valve is to amplify the volume of air from a variable pressure source while following the pilot pressure signal with minimal error. The valve uses a large diaphragm to maintain balance between the pilot pressure and sensed actuator pressure. -
Page 8: Technical Data
3/4 NPT Ambient temperature: -40°F…+140°F [-40 °C… + 60 °C] Weight: 9.4 lbs [4.3 kg] ODEL The 3329 relay valve can be configured to have various features. Below is a key defining the letter code options: CHEMATIC YMBOL 3329 3329-E 3329-EP Rev A MNL-3329.docx... -
Page 9: Installation
To make the proper piping connections at the control valve, refer to the diagram below. Figure 3: Piping Connections The 3329-EP relay valve is equipped with a 1/8 NPT emergency bypass port. Ensure that 100 psi regulated air is supplied to this port for lifting applications. If the electro-proportional valve fails, this supply pressure will override and set the relay valve to maximum output. -
Page 10: Electrical Connections
Kobelt 3329 relay valves are equipped with “U” cups and “O” rings and therefore require lubrication in order to provide long service life. Unlubricated seals will have excessive friction and wear. The oil that is required for the lubricator should be a hydraulic type with a viscosity grade of 10 to 32 centistokes. -
Page 11: Brake System Plan
3329 Manual KOBELT MANUFACTURING CO. LTD RAKE YSTEM Below is a piping diagram depicting how to utilize the Kobelt 3329-E relay valve in a hoist braking system. Figure 4: 3329-E System Arrangement Rev A MNL-3329.docx... -
Page 12: Commissioning
Bi-annually (once every two years) o Lubricate seals YPASS VERRIDE The 3329-EP version with emergency bypass functionality is provided with a manual override switch as shown in figure 5. This switch can be used to manually set the valve to the electro-proportional pilot source in the event that the bypass solenoid coil fails. -
Page 13: Seal Service
Appendix B for a complete list of parts. When purchasing spare parts refer to Appendix B: Parts List at the back of this manual for Kobelt component Part Numbers. It is recommended that any required service work on a Kobelt unit be performed by a factory authorized service representative. -
Page 14: Warranty
Buyer. Kobelt’s sole obligation to the Applicant will be to repair or replace the defective part with same or similar product, to a maximum value of the list price of the product or part. The Kobelt warranty does not cover labour charges, travel or any other associated expenses. -
Page 15: Appendix A: Installation Dimensions
3329 Manual KOBELT MANUFACTURING CO. LTD A: I PPENDIX NSTALLATION IMENSIONS Figure 7: 3329-EP Installation Dimensions Rev A MNL-3329.docx... - Page 16 3329 Manual KOBELT MANUFACTURING CO. LTD 3329-E Figure 8: 3329-E Installation Dimensions Rev A MNL-3329.docx...
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Page 17: Appendix B: Parts List
3329 Manual KOBELT MANUFACTURING CO. LTD B: P PPENDIX ARTS 3329 Rev A MNL-3329.docx... - Page 18 PART NUMBER DESCRIPTION 3329-0001 MAIN BODY 3329-0002 DIAPHRAGM HOUSING BOTTOM 3329-0003 DIAPHRAGM HOUSING, TOP, 3329 3329-0004 POPPET COVER; 3329 RELAY VALVE 3329-0005 DIAPHRAGM WASHER, 3329 3329-0006 VALVE STEM; 3329 RELAY VALVE 3329-0007 VALVE SEAT 3329-0008 VALVE POPPET; 3329 RELAY VALVE...
- Page 19 3329 Manual KOBELT MANUFACTURING CO. LTD 3329-EP Rev A MNL-3329.docx...
- Page 20 QTY. PART NUMBER DESCRIPTION 3329-0101 MAIN BODY 3329-0002 DIAPHRAGM HOUSING BOTTOM 3329-0103 VALVE MANIFOLD; ELECTROPROPORTIONAL PRESSURE VALVE 3329-0004 POPPET COVER; 3329 RELAY VALVE 3329-0005 DIAPHRAGM WASHER, 3329 3329-0006 VALVE STEM; 3329 RELAY VALVE 3329-0007 VALVE SEAT 3329-0009 SEAL RETAINER, 3329 1001-1012 SCREW - HEX HD;...
- Page 21 SOLENOID VALVE - PNEUMATIC; 2/3 WAY NC, 30 MM CNOMO, 24VDC 7036-0022 CARTRIDGE VALVE - PNEUMATIC; 2/3 NC, .25 ORIFICE 3329-0111 GASKET; BY-PASS MANIFOLD 3329-0112 COVER; 3329 CARTRIDGE VALVE 1012-3410 SCREW, PAN HD PHIL, M4-0.7 X 10mm, A4 3329-0113 GASKET; SPOOL VALVE COVER 7039-7105 ADAPTER - ELBOW;...
- Page 22 3329 Manual KOBELT MANUFACTURING CO. LTD Kobelt Manufacturing Co. Ltd. 8238 129th Street Surrey, British Columbia, Canada, V3W 0A6 Sales Tel: +1-604-572-3935 Fax: +1-604-590-8313 Email: sales@kobelt.com Website: www.kobelt.com Rev A MNL-3329.docx...
- Page 23 3329 Manual KOBELT MANUFACTURING CO. LTD Made in Canada / Printed in Canada Rev A MNL-3329.docx Heiko Digitally signed by Heiko Epkens Epkens Date: 2022.07.21 16:54:43 -07'00'...