Installation Operation Maintenance ADDENDUM Bulletin #: PS-IOM-HYPO2-0111-A
FACTORY SERVICE POLICY If you are experiencing a problem with your Pulsafeeder pump, first review the IOM, and consult the troubleshooting guide. If the problem is not covered or cannot be solved, please contact your local PULSA Series Sales Representative or our Technical Service Department at (585) 292-8000 for further assistance. Trained individuals are available to diagnose your problem and arrange a solution.
Table of Contents 1. CONVENTIONS ...................................................................................................................................... IV 2. GENERAL SAFETY ................................................................................................................................ 1 2.1 Explosive Atmosphere Safety ................................................................................................ 1 2.2 Electrical Safety ....................................
1. Conventions For the remainder of this bulletin, the following Conventions are in effect. A WARNING DEFINES A CONDITION THAT COULD CAUSE DAMAGE TO BOTH THE EQUIPMENT AND THE PERSONNEL OPERATING IT. PAY CLOSE ATTENTION TO ANY WARNING. Notes are general information meant to make operating the equipment easier. Tips have been included within this bulletin to help the operator run the equipment in the most efficient manner possible.
2. General Safety The Auto De-gas Valve (ADV) was designed as a gas handling/priming aid for operation solely with Pulsafeeder PULSAR® and PULSAR Shadow® metering pumps. Use for any other application is considered un-safe and voids all certification markings and warranties. 2.1 Explosive Atmosphere Safety Explosion Hazard -- Do not perform installation or maintenance of any kind on this device while circuit is live and/or the area is known to be hazardous.
3. Equipment Inspection When you receive your order, check all equipment for: Completeness against the shipping document / purchase order Evidence of shipping damage. Shortages or damage should be reported immediately to the carrier and your PULSAFEEDER representative. 4. Storage The ADV can be successfully stored for extended periods. The key to this success is temperature and humidity control.
6. Overall System Diagram \ Figure 1 The ADV consists of a pressure balanced valve which opens periodically to allow fluid from the discharge line to bypass the discharge check valve and flow back into the pump head. The valve is actuated by a solenoid controlled by a solid-state timer. The ADV Valve Assembly incorporates a dual sealing design to insure the valve function even if the Primary Bellows seal fails.
7. Installation 7.1 Location Review the Safety section prior to installing the pump with ADV. It contains information required to properly install and operate the ADV in an industrial environment. Review the PULSAR® or PULSAR Shadow® Installation Operation Maintenance manual provided with your metering pump. It details system related issues that are important to proper operation of the pump and also the ADV. The ADV should be mounted in an area where the operator has access to the front of the unit.
Install wiring to the unit using a minimum of 18 inches of flexible conduit or cable attached to the auto valve assembly in order to facilitate removal of the valve assembly from the reagent head for cleaning or maintenance. Wiring must conform to all applicable codes. Prior to pump startup; always check to ensure that the ADV voltage and frequency matches that of the power supply. It is recommended that the ADV be powered from a Ground Fault Circuit Interrupter (GFCI) protected electrical circuit. 1.
8. Description and Operation 8.1 Principle of Operation Reciprocating metering pumps are used with a wide variety of chemicals, such as sodium hypochlorite, that produce gas within the piping and pump systems. This gas can accumulate in the pump reagent head, causing the pump to “air bind” and lose prime.
9. Maintenance 9.1 Maintenance Notes The O-ring seals used in the check valve and ADV are critical to product containment and pump operation. All o-rings should be inspected carefully and any that show signs of damage or wear should be replaced. The owner may wish to replace these seals any time the ADV assembly is removed from the pump. A complete cartridge seal assembly is available to the owner as a separate repair part. If necessary, the complete ADV assembly is available as a repair item. 9.
6. Remove outer spring from Core Assembly (Seal Kit Assembly) and pull Core Assembly out. 7. Inspect Valve Body for O-rings that may have been left in and remove. Locate and remove both O-rings 8. Remove the sleeve from the Core Tube and remove the O-ring. 9. Locate parts from the Seal Kit. Inspect Seal Kit parts and insure the small spring is in the core. CAUTION: Do not unscrew any part of the seal kit during inspection or reassembly. Any change in length will affect valve performance.
10. Install NEW O-ring onto core tube, lubricate with lubricant that is compatible with product being pumped, and reinstall sleeve over Core Tube. 11. Install NEW O-ring on Seal Kit and with lubricant that is compatible with product being pumped. 12. Apply a lubricant that is compatible with product being pumped to the Body O-ring and install into Valve Body. 13. Install NEW Seal Kit into Valve Body. Use care to ONLY push straight into bore. 14.
15. Slide Core Tube over core and align to the tabs on the Valve Body. 16. Slide Union Nut over Core Tube and tighten onto Body. Do not over tighten, hand tight is sufficient. 17. Slide the solenoid over the Core Tube and secure with Cap Nut. Hand Tight. 18. Reapply power to the pump and ADV and follow standard startup instructions from IOM supplied with pump. 9.
5. Loosen the suction valve tiebar bolts and shift the suction piping slightly to drain any liquid from the reagent head cavity. If the piping is closely connected it may be necessary to disconnect a union or flange. 6. Loosen the tiebar bolts on the discharge valve and shift the piping slightly to drain any liquid. 7. Slide the valve assembly away from the front of the reagent head.
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