NVT/NCT Series Modular Sizing/Cooling Tanks · 2016. 9. 6. · construction and is effective for 5.5” diameter extrudate and smaller. Spray bars allow spray to be applied to the

NVT/NCT Series Modular Sizing/Cooling

Tanks 8” x 8” or 12” x 12” Tanks with

2.5” – 6” Cross-Section Capacity 12’-18’ Long

Vacuum / Flood / Spray

Instruction Manual IM NVT-NCT IM 6 SEPT 2016

© NOVATEC, INC 2016 All Rights Reserved

NVT-NCT IM 6 SEPT 2016

© 2016 NOVATEC Inc. All Rights Reserved NVT-NCT IM 6 SEPT 2016

Please record the following information, which is specific to this piece of equipment, in the space provided. Our Parts/Service Department will need these numbers to properly respond to any of your requests.

Instruction Manual: NVT-NCT IM 6 SEPT 2016 Model#: _________________ Serial #_____________________________

DISCLAIMER: NOVATEC, Inc. shall not be liable for errors contained in this Instruction Manual nor for misinterpretation of information contained herein. NOVATEC shall not, in any event, be held liable for any special, indirect or consequential damages in connection with performance or use of this information.


1 © 2016 NOVATEC Inc. All Rights Reserved NVT-NCT IM 6 SEPT 2016

Table of Contents

1.0 PURPOSE OF THIS MANUAL ............................................................................................................... 2 Explanation of Symbols ........................................................................................................................................... 2 2.0 SAFETY PRECAUTIONS AND WARNINGS ......................................................................................... 3 3.0 GENERAL DESCRIPTION ..................................................................................................................... 4 3.1 Intended Use ..................................................................................................................................................... 4 3.2 Features ............................................................................................................................................................ 4 3.3 Specifications .................................................................................................................................................... 4 4.0 OPERATING PRINCIPLES AND DESCRIPTIONS OF TANK VARIATIONS ....................................... 5 4.1 Vacuum Tank Principles ................................................................................................................................... 5 4.1.1 Vacuum Tank Operation ................................................................................................................................ 5 4.1.2 Regenerative Blowers as a Vacuum Source ................................................................................................. 6 4.1.3 Liquid Ring Pumps as a Vacuum Source ...................................................................................................... 7 4.2 Cooling Tank Operation .................................................................................................................................... 7 5.0 UNPACKING .......................................................................................................................................... 8 6.0 MECHANICAL INSTALLATION ............................................................................................................ 9 6.1 Positioning the Vacuum Tank ........................................................................................................................... 9 6.2 Final Alignment and Leveling ............................................................................................................................ 9 7.0 ELECTRICAL INSTALLATION ............................................................................................................ 10 8.0 WATER/AIR HOOK-UP……………………………………………………………………………………….11 8.1 Makeup Water Connection.............................................................................................................................. 11 8.2 Sump Drain Connection .................................................................................................................................. 11 8.3 Sump Water Level ........................................................................................................................................... 11 8.4 Chilled Water Connection ............................................................................................................................... 11 8.5 Air Connection ................................................................................................................................................. 11 9.0 VACUUM TANK SETUP ...................................................................................................................... 12 9.1 Overflow Drains ............................................................................................................................................... 13 9.2 Vacuum .......................................................................................................................................................... 13 10.0 DRAWINGS FOR WATER CONNECTIONS...................................................................................... 14 11.0 MAINTENANCE .................................................................................................................................. 21 12.0 WARRANTY – NOVATEC, INC. - EFFECTIVE DATE: 4 APRIL 2013 ............................................. 22



1.0 PURPOSE OF THIS MANUAL

This manual describes the installation and operation of the NOVATEC Model NCB1008-20 Extrusion Cooling Bath. Before installing this product, please read this guide and any additional guides associated with the system’s auxiliary equipment.

Explanation of Symbols

This manual includes both general and task-specific safety precautions. These precautions are highlighted in the manual by the following categories:

WARNING: This symbol identifies situations that are potentially hazardous to personnel or equipment.

NOTE Highlights information provided in text or procedures. This information may or may not be related to safety.



2.0 SAFETY PRECAUTIONS AND WARNINGS

These operating instructions must be read, understood, and implemented by all personnel responsible for this system.

All mechanical and electrical work must be performed by qualified personnel only. Always disconnect power before servicing.

Refer to the machine serial number nameplate and drawings supplied with this system for

actual power requirements.

Be sure to install the equipment with the proper electrical connections according to all national and local regulations.

Electric power supply should be through a separate disconnect switch with properly sized

overload/fuse protection.

The customer is required to operate the equipment with all safety features in proper working condition.

NOVATEC shall provide no further guarantee for function and safety in the event of

unauthorized modifications.



3.0 GENERAL DESCRIPTION

The NOVATEC, NVT Series Vacuum Tanks offers high versatility to cool and size a wide range of hollow profiles. The tank is supplied with cooling water (public, chilled or tower) that either floods the tank or is sprayed into the tank to assist in removing heat from the moving extrusion. Initially, the extrusion is manually fed through the cooling tank and then automatically advanced by a puller that keeps the extrusion both linear and traveling at the desired speed. Water takes heat out of the extrusion, allowing it to become solid and vacuum ensures the desired shape.

3.1 Intended Use

NVT Series Vacuum tanks are intended to cool and size hollow cross section thermoplastic profile, pipe, and tube. NCT Series Cooling tanks are intended for use with non-hollow cross section profiles and hollow cross section profiles AFTER they have been properly sized with a vacuum tank.

3.2 Features

• Modular vacuum tank made of 304 stainless steel with bronze fittings. • Non-corrosive materials used in all wetted areas including all plumbing. • Dial Temperature indicator on each sealed tank section • Flood cooling with ball valve control on each sealed tank section. • Three plane adjustment of upper tank • Plumbing Cart Equipped with 10x20 or 5x12 Heat Exchanger: • Includes SS 2 HP recirculating pump (plus a SS ¾ HP pump for liquid ring applications) • Vacuum pump(s) 5 HP Tuthill Kinney Liquid Ring Pumps or 2 HP regenerative blower • Sump tank for use with vacuum pumps or Regenerative blowers • R-L extrusion orientation and set at 42 inch extrusion height with a +/- 2 inch adjustment

capability • 5-Year Warranty

3.3 Specifications 42” centerline height with +/- 2” of adjustment (NVT & NCT)

Linear travel of 12” for positioning tank up to extrusion die (NVT)

• +/- 1.0” of adjustment travel across die face (horizontal) (NVT) • 2.5” Extrusion cross-section for 8” tanks and 6” extrusion cross-section for 12’ tanks. • Dimensions:

H= 67” nom. D= 50” nom for 12’ tanks, 37” nom. For 18’ tanks OAL= 153-169” nom. for 12’ tanks and 229-241” for 18’ tanks

• 460VAC/3 phase/60Hz



4.0 OPERATING PRINCIPLES AND DESCRIPTIONS OF TANK VARIATIONS

4.1 Vacuum Tank Principles

A vacuum tank is a long stainless steel vessel that contains and moves water to remove BTU’s from a molten plastic extruded tube or profile. An operator will manually string an extrusion through the vessel and upon exiting the cooling bath, the extrusion will be fed into a pulling device downstream of the cooling bath.The pulling device keeps the extrusion on a continuously moving and linear path through the bath, allowing the cooling water to come in contact with the extrusion remove heat related to the extrusion. NVT Series modular vacuum tanks are characterized by cross section capacity, overall length, and vacuum/pump equipment.

The stainless steel upper tank cross section dimensions are 8”x 8” and 12” x 12” and are intended for processing maximum cross sections up to 2.5”and 6” diameter, respectively. Overall Length is specified depending on extrusion processing parameters such and material type, temperature, wall thickness and required throughput. Overall tank lengths of 12’ and 18’ are available as standard. The modular construction of the tank ensures a first 6’ vacuum section that can partitioned into 3’ sections and one or two additional 6’ sections which can also be partitioned depending on process requirements. Tank length is specified to ensure product size and form is maintained as the product exits the tank for further cooling in non-vacuum water tanks or other downstream processing equipment including pullers, cutters, saws, and winders. Additionally, 12” - 18” long, non-vacuum seal water chambers and or air wipe, chambers can be included with the tank to further customize the tank in a modular way. Tanks are partitioned in lengths to allow different vacuum levels in different regions of the upper tank. Typically, end sealing and partitioning is designed and specified by the end user. The tank assembly may be adjusted vertically, horizontally and longitudinally with manual controls to line up with the extruder.

4.1.1 Vacuum Tank Operation

The first 6’ section of vacuum tank is immersion - meaning the extrudate is under water. The second is also typically immersion in the cross sectional capacities Novatec offers as standard. However, spray bars can be specified for 12” x 12” tank construction and is effective for 5.5” diameter extrudate and smaller. Spray bars allow spray to be applied to the extrudate for an increase in convective cooling for the vacuum process and are typical for large diameter pipe tanks. Spray bars are typically not used for smaller extrusion cross sections because the extrudate can be forcibly blown off of the roller guide supports. The specific plumbing of each tank varies depending upon the vacuum source(s), number of recirculation pumps, as well as the length of the vacuum tank. There is not



a simple way to describe the multitude of plumbing routings of each of the customer specific vacuum tanks.

This manual shows several different plumbing diagrams specific to each possible plumbing arrangement. It is hoped that a careful study of these diagrams will reveal the intended operation and benefit/limitation of each type of arrangement.

Vacuum Blowers, Liquid ring pumps, recirculation pumps, controls, heat exchangers and filters, and regulators are contained on a wheeled modular cart that mounts to the side of the tank opposite the operator. This “Water Cart” can be de-installed from the tank for maintenance without needing to move the entire tank.

The Vacuum tank consists of the modular water cart and a tank assembly. The tank assembly consists of the upper tank sections, lower sump (and possibly lower vacuum sump- if a regenerative blower is used), upper tank drain plumbing, upper tank recirculation distribution plumbing, makeup water connections, sump drain connections, and a frame with upper tank supports which adjust and position the upper tank sections relative to the extruder.

The first section of vacuum extrusion tank has sight glass windows in the tank body for viewing of the extrudate as it is being processed. All lids have sight glass windows for viewing of the extrudate from the top of the tank.

Each partitioned section of the upper tank has a manual bleed valve for regulating vacuum in each upper section. These valves are set initially in the case of the regenerative blower configured tanks. These valves allow the regulation of vacuum in the upper sections of tank which use liquid ring vacuum pumps.

A vacuum regulator is offered with liquid ring configured NVT extrusion vacuum tanks which can vary the vacuum in the tanks either manually or with an automatic option that employs an electronic control system. This vacuum regulator is air piloted and bleeds air into the system depending upon the level of vacuum and a pilot pressure set with an air pressure regulator.

Manual vacuum dial gauges and dial thermometers are provided for each sealed partitioned section of the upper tanks. Roller supports are provided for every 3’ of tank section and act as an axle for customer-supplied or customer-defined rollers which serve to keep extrudate supported or submerged on centerline. Adjustment is manual with a setscrew.

4.1.2 Regenerative Blowers as a Vacuum Source The first type of vacuum source is regenerative blower. The standard regenerative blower style extrusion tanks are characterized by a higher volumetric air flow for ease of startup, an approximately 85 inches of water column maximum vacuum, and a generous water recirculation flow rate. The regenerative blower style extrusion tank has variable speed control for finely tuned, infinitely variable control of vacuum level in the tank. As a standard, only one regenerative pump per NVT tank is available. Regenerative blowers cannot process liquid (can’t ingest water by design), therefore a



small vacuum rated lower sump tank is required to separate air from the water after draining from the upper tank sections.

4.1.3 Liquid Ring Pumps as a Vacuum Source

The second type of vacuum sources are liquid ring vacuum pumps. Liquid ring vacuum pumps are characterized by their ability to draw deeper vacuum of up to 200” of water column and their ability to ingest a two phase water/air mixture, thus eliminating the need for a vacuum separating sump to separate the air from the water.

The air water mixture is rejected directly to a non-vacuum rated (polyethylene) lower sump tank. Liquid ring pumps are not controllable with variable speed and valves must be used to control the vacuum level in a liquid ring pump setup by changing the flow rate thru the pump. Liquid ring pumps are limited in the amount of air water mixture they can process. Either one or two liquid ring pumps are used per NVT Vacuum tank. Some processers use a two liquid ring pump system to achieve two different vacuum levels in different sections of a partitioned upper tank.

Traditional extrusion tanks using liquid ring pumps are limited in the amount of water they can recirculate. In this traditional setup all water passes thru the liquid ring pump and the liquid ring pump “chokes” if too much water passes thru the pump. While this standard construction is available, Novatec offers an improved system that uses multiple water recirculation pumps. In the improved system, a small portion of water is recirculated thru the liquid ring pump with a small recirculation pump, and a larger recirculation pump circulates a large volumetric flow under vacuum through a heat exchanger to increase cooling dramatically.

4.2 Cooling Tank Operation

NCT Series cooling tanks employ a tank assembly and a water cart to cool the extrudate. Upper tank sections are made from polyethylene for cost savings. There is no vacuum pump. Spray configuration is standard for 12”x 12” inch tanks with plain stainless steel lids for cooling optimization. Immersion cooling is standard for 8”x 8” tanks without lids for cost optimization. NCT series cooling tanks have a manual vertical adjustment of +/- 2”.



5.0 UNPACKING

1. Carefully unpack the tank and any other components delivered with it. Check all packaging for loose parts, documentation, and other included items. Carefully inspect the tank. Ensure that no wires, bolts, screws, terminals, or other connections have come loose during shipping. Check to ensure that all moving parts are not obstructed by debris or excess packing material.

2. All national and local electrical, building, and safety codes need to be followed. Proper

grounding of all equipment is important. Check the electrical wiring schematic for wiring numbers and details. The following paragraphs describe installation of typical system components. Some of them are optional and may not be required for your system.

CAUTION: All machines must be grounded to prevent "shocks" from static electricity that is generated by some materials as they are moved. This is an extremely important step. All electronics are susceptible (to varying degrees) to electrostatic damage and, although as much protection as possible has been designed into the system; this cannot completely eliminate upsets due to electrostatic voltage being accidentally introduced into the electronic circuitry.



6.0 MECHANICAL INSTALLATION

6.1 Positioning the Vacuum Tank Determine the general position of the vacuum tank. This should be done with consideration to the location of the extruder and the puller and to the nature of the extrudate. A source of city, chilled or tower water must be available as well as access to 460/3/50/60 VAC. NOVATEC vacuum tanks are provided with V-groove casters to roll the tank into position plus stabilizing feet to hold the tank in place once it is properly positioned. You may want to install V-rails in the floor to ensure that when the tank is moved away from the extruder it remains in correct alignment with the extruder. The V-rails should be at least 3’-4’ longer than the tank and should allow the upstream end of the tank to be pulled to within 12” or less of the extruder die face. Construct tracks for the tank from 1.5” x 3/16” steel angle. The track width at the apex of the angle is 16.5”

6.2 Final Alignment and Leveling Once the general position has been determined, carefully align the tank with the extrusion line. It is easiest to adjust the horizontal position before adjusting to the proper height and leveling. Ensure that all downstream equipment is properly aligned (pullers, cutters, etc.). To adjust the centerline height of the cooling bath, a manual hand wheel is positioned at each end of the frame. Once desired height is achieved, ensure that the cooling tank is level.

Lateral Adjustment Wheel (One at each end of tank)

Vertical and Leveling Adjustment Wheel

(One at each end of tank) Longitudinal Motion Adjustment



7.0 ELECTRICAL INSTALLATION

Always disconnect and lock out the main power supply before wiring power and control cables between the NC series cooling bath and the external devices. Refer to the wiring diagram and general arrangement drawings supplied with this system before making electrical connections.

Ensure the equipment grounding is properly connected.

Open the sizing tank electrical enclosure and insert the main power through a knockout in the wall of the enclosure. Connect the power wire as indicated on the included wiring diagram. Check that all terminal screws are secure. Close electrical enclosure. Join the cables to the solenoid on the plastic sump and the float switch on the metal sump after quick pinning the cart to the tank frame (quick pins are installed in the tank frame) Check motor rotations - Check phasing recirculation pump and ensure it spins in the proper direction on the recirculation. Confirm blower spinning in the indicated direction on the vacuum pump. Jog the motors DO NOT run the recirculation pump dry.

Before testing the machine, confirm that the placement and wiring of the cooling bath conform to all applicable national and local regulations. When ready, turn on the main disconnect. With first start-up, check recirculation pump motor rotation and confirm it matches label on motor. If motor runs backwards, remove and lock-out incoming power. With power locked out, reverse two of the main wire leads into the box.



8.0 WATER/AIR HOOK-UP NOVATEC employs a separate utilities cart for all tanks. They are equipped with various sizes and styles of pumps and heat exchangers and filters – to meet customers’ process requirements. Most connections are made at the factory.

In other cases the customer needs to make some connections from the sump tank on the main frame to points on the utility cart. These are marked as A-A, B-B, C-C etc., depending on how many field connections there are.

8.1 Makeup Water Connection Makeup water from the plant supply should be hooked up to the water reservoir under the tank. It is a 3/4” NPT female connection and is marked with a label, “WATER IN”.

8.2 Sump Drain Connection A 2” NPT on the non-operator side of the lower polyethylene sump should be attached to the plant drain water. 8.3 Sump Water Level Once water is connected, plant water can be turned on. A valve inside the sump will shut-off incoming water once a set level is achieved. This level is adjusted at the factory and should need no adjustment. Adjustment can be made by loosening and retightening the ¼-20 hex head hardware, if required.

8.4 Chilled Water Connection The heat exchanger will be mounted on the utility cart in close proximity to the recirculation pump and reservoir. Two 1-1/2” NPT male (1” NPT male for 8” x 8” tanks) connections are provided for hook-up to either a portable chiller or plant chilled water system. Field connections to the heat exchanger are marked with labels, “WATER IN” and WATER OUT”.

8.5 Air Connection Plant air should be connected to the inlet side of the air regulator on the plumbing cart if an air piloted vacuum regulated system is present.

Utilities Cart



9.0 VACUUM TANK SETUP

1- Fill the upper sections of tank with water (unless spray) by turning on the recirculation pump or pumps and opening the 3/4” NPT fill valves located on each partitioned upper tank. This valve setting may need to be restricted if liquid ring pump becomes noisy due to ingestion of excess water in the case of the “traditional” liquid ring pump setup. A valve on the downstream side of the small recirculation pump in the improved multi-recirculation pump setup may need to be modulated to prevent excess noise in the liquid ring pump as well.

2- Adjust roller supports so that they support the product on center of the tank. 3- Turn on recirculation water pumps – liquid ring pumps will not start without first having these pumps turned on. This prevents the liquid ring pump from running dry. Look for air bound condition in these recirculation pumps and lack of flow. Cycle power if necessary to eliminate air bound condition at startup and ensure recirculation pump is providing full flow. This is most prevalent with regenerative blower setup. Tank fill valve may be used with restricted flow at ¾” NPT fill valves to eliminate this condition in the regenerative blower tanks.

4- Inspect Vacuum Gauges

NOTE: The Novatec-supplied vacuum gauges measure very small changes in pressure and have a very thin Bordon tube inside. If atmospheric pressure does not match pressure in the glycerin filled chamber, the gauge may indicate a non-zero reading even when there is no vacuum on the tank. This is referred to as Hysteresis. Hysteresis is a measure of how effectively a pressure gauge is in repeating the upscale reading on the down scale cycle if all conditions remain the same. The Novatec-supplied gauges should be periodically “burped” by removing and reinstalling the rubber plug on top of the gauge. The end user may also elect to put a small “pin hole” in the rubber plug to eliminate this periodic procedure, however glycerin is an organic material and will degrade over time when exposed to air. Distilled water may be mixed with the glycerin in the gauge if less hysteresis is desired in the gauge reading or if it is desired to make up lost glycerin from the gauge.

5- Set maximum vacuum level in regenerative blower setup after sealing ends of tank. Turn on regen blower with potentiometer set to 100%. Make sure 6” Hg is not exceeded by adjusting bleed valves on top of each tank from fully open position to partially close position. This step should be done before stringing the line. Further adjustment of the vacuum pressure can be modulated with the potentiometer.

6- Set approximate vacuum level in liquid ring setup (with vacuum regulator) after sealing ends. 7- Apply water to sizing tooling 8- Align tooling with die head using vertical, transverse, and axial tank motions. 9- String line - close lids as you go 10- Look for vacuum seal – Note some processors choose to set the tank vacuum to 0 then increase vacuum gradually.

(cont’d. next page)

Vacuum Pump Recirc Pump(s)

Potentiometer



11- Optimize cooling – processors choose to run different levels of cooling water depending on the

desired outcome. If hotter water bath is required in a section, reduce the flow to that section. If maximum cooling is desired, increase water flow to a maximum, but do not allow liquid ring pumps to become noisy as this will dramatically shorten the life of the vacuum pump.

9.1 Overflow Drains

There are one or two, hand-adjustable, overflow drains in each tank section connected to flex hose that carries excess water back to the water reservoir. The overflow drains are typically set to the lowest level possible to allow full submersion of extrudate.

9.2 Vacuum With sump lids in place, turn on vacuum pump. String product and close lids. Set intended vacuum with speed potentiometer. If Regenerative Vacuum Pumps are being employed, do not exceed 6” hg vacuum level or vacuum pump will be overloaded and will overheat. Allow sufficient time for tank to fill after product is strung to fully fill. Observe good flow returning to metal sump. After good flow is observed, water valves to tank sections, spray ring, tooling, and seal water may be increased. Flow may be increased to the point where vacuum continues to be stable and there is a minimum of water in the vent line that joins the upper tank to the top of the metal sump.



10.0 DRAWINGS FOR WATER CONNECTIONS















11.0 MAINTENANCE

It is recommended that maintenance and inspection be performed on a scheduled basis. Maintenance requirements may vary widely for each installation and specific operating conditions. It is suggested that a complete inspection be performed with necessary maintenance at the end of the first month, the first three months, and the first six months. These inspections will indicate how often future maintenance will be necessary.

All electrical, mechanical repairs and tests are to be performed by qualified personnel only.

Disconnect electric power from control box before opening panel for maintenance.

Depressurize recirculation system before performing maintenance or repairs on pressure containing components.

Do not disable or bypass equipment safety features. Refer to system component manuals for additional information.

WARNING: Before beginning repair work, disconnect all power sources and secure against inadvertent reconnection.

WARNING: Auxiliary equipment may contain moving parts that may cut, crush, or otherwise injure personnel when safety/access covers are removed. Do not place hands or limbs in equipment during operation.

At Startup

Verify all guards are in place and able to be fully closed.

Ensure hoses are attached securely. Record equipment Serial Numbers and model numbers.

Inspect and “Burp” vacuum gauges, if necessary. (See #4 - page 12)

Daily

Clean recirculation screen inside reservoir

Every 3 Months

Check all electrical connections to make sure that they have not become loose, especially those

connections at contactors, like motor starters. Check all hose clamps for to make sure they have not become loose Lubricate movement adjustment mechanisms



12.0 WARRANTY – NOVATEC, INC. - EFFECTIVE DATE: 4 APRIL 2013 NOVATEC, INC. offers comprehensive product warranties on all of our plastics auxiliary equipment. We warrant each NOVATEC manufactured product to be free from defects in materials and workmanship, under normal use and service for the periods listed under “warranty periods”. The obligation of NOVATEC, under this warranty, is limited to repairing or furnishing, without charge, a similar part to replace any part which fails under normal use due to a material or workmanship defect, within its respective warranty period. It is the purchaser’s responsibility to provide NOVATEC with immediate written notice of any such suspected defect. Warranted replacement parts are billed and shipped freight pre-paid. The purchaser must return the suspect defective part, freight prepaid and with identifying documentation to receive full credit for the part returned. Novatec shall not be held liable for damages or delay caused by defects. No allowance will be made for repairs or alterations without the written consent or approval of NOVATEC. The provisions in equipment specifications are descriptive, unless expressly stated as warranties. The liability of NOVATEC to the purchaser, except as to title, arising out of the supplying of the said equipment, or its use, whether based upon warranty, contract or negligence, shall not in any case exceed the cost of correcting defects in the equipment as herein provided. All such liability shall terminate upon the expiration of said warranty periods. NOVATEC shall not in any event be held liable for any special, indirect or consequential damages. Commodities not manufactured by NOVATEC are warranted and guaranteed to NOVATEC by the original manufacturer and then only to the extent that NOVATEC is able to enforce such warranty or guaranty. NOVATEC, Inc. has not authorized anyone to make any warranty or representation other than the warranty contained here. Non-payment of invoice beyond 90 days will invalidate the warranty. A renewed warranty can be purchased directly from NOVATEC. Please note that we always strive to satisfy our customers in whatever manner is deemed most expedient to overcome any issues in connection with our equipment. Warranty Period: Note: All warranty periods commence with the shipment of the equipment to the customer.

NVT Sizing Tanks = 5 Years

Exclusions: Routine maintenance/replacement parts are excluded from the warranty. These include, but are not limited to: hoses, filters, filter elements, gaskets, motors, internal solenoids, fuses and motor brushes. NOVATEC reserves the right to limit the warranty if the customer installs replacement parts that do not meet the specifications of the original parts supplied by NOVATEC. This warranty shall not apply to equipment: 1. Repaired or altered without written approval of NOVATEC unless such repair or alteration was, in our judgment, not responsible for the failure 2. Which has been subject to misuse, negligence, accident or incorrect wiring by others 3. Warranty is void if processing rates exceed manufacturer-recommended levels or if damage is caused by ineffective power isolation and/or power spikes/sags or incorrect installation. NOTE: All conditions and content of this warranty are subject to changes without notice.

Documents

NVT/NCT Series Modular Sizing/Cooling Tanks · 2016. 9. 6. · construction and is effective for 5.5” diameter extrudate and smaller. Spray bars allow spray to be applied to the