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Unibloc-Pump UNIBLOC-PD Series Operation & Service Manual

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UNIBLOC-PD
®
Operation & Service Manual
Models: 200-576
Original Instructions
MANUAL NO.: PD200-576 REVISION: 09/2019

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Summary of Contents for Unibloc-Pump UNIBLOC-PD Series

  • Page 1 UNIBLOC-PD ® Operation & Service Manual Models: 200-576 Original Instructions MANUAL NO.: PD200-576 REVISION: 09/2019...
  • Page 2 Information contained in this manual is subject to change without notice Copyright © 2019 Unibloc-Pump. and does not represent a commitment on the part of Unibloc-Pump. No All Rights Reserved. part of this manual may be reproduced or transmitted in any form or by...

  • Page 3: Table Of Contents

    Contents 1.0 General ........................5 1.1 Declaration of Conformity ....................5 1.2 General Description ......................7 1.2.1 Limitation ..............................8 1.2.2 Noise Emission ............................8 1.2.3 Marking – CE ............................8 1.2.4 Marking – Standard ..........................8 2.0 Safety ........................9 2.1 General ..........................9 2.2 Safety Instructions ......................
  • Page 4 4.5 Pump Bearing Housing Service ..................29 4.5.1 Bearing housing Disassembly ......................30 4.5.2 Bearing housing Assembly ........................30 4.5.2.1 Pump Assembly - Stainless Steel Rotors ....................30 4.5.2.2 Pump Assembly – Stainless Steel Rotors – Final Step ................31 4.5.2.3 Pump Assembly –...

  • Page 5: General

    1.0 General 1.1 Declaration of Conformity Original Declaration of Conformity According to New Approach Machine Directive 2006/42/EC Manufacturer Manufacturer UNIBLOC-PUMP, Inc. UNIBLOC-PUMP AB Flowtech Div. Lantvarnsgatan 4 1701 Ashborough Road 652 21 Karlstad SWEDEN Marietta, GA 30067-8925 Declares hereby That the following product(s) if ordered with CE compliance are meeting the requirements set forth in EC Directive 2006/42/EC.
  • Page 6 Original Declaration of Conformity According to New Approach Machine Directive 2006/42/EC Manufacturer Manufacturer UNIBLOC-PUMP, Inc. UNIBLOC-PUMP AB 1701 Ashborough Road Lantvarnsgatan 4 Marietta, GA 30067-8925 652 21 Karlstad SWEDEN Declares hereby That the following product(s) if ordered with CE compliance are meeting the requirements set forth in EC Directive 2006/42/EC.

  • Page 7: General Description

    1.2 General Description UNIBLOC-PD is a positive displacement rotary lobe pump. It may be supplied with a drive unit (figure 1.0) or without a drive unit (figure 1.1). When supplied with a drive unit it is called UNIBLOC-PD ASSEMBLY. Figure 1.0 indicates various parts of an assembly.

  • Page 8: Limitation

    1.2.1 Limitation The pump should be used for the duty for which it has been specified. The operating pressure, speed and temperature limits have been selected at the time of order and MUST BE ADHERED TO. These details are stated on the original order documentation. If not available, documentation may be obtained from your supplier by referencing the pump serial number and/or invoice number.

  • Page 9: Safety

    2.0 Safety 2.1 General This information must be read carefully before installation, operation or servicing. The safety instruction must always be availa- ble for the pump operator. The following symbols are used.   WARNING: Indicates instructions that can affect personal safety if not followed.  ...
  • Page 10 If an integrated safety relief valve is installed, do not allow extended periods of recirculation through the valve. UNIBLOC-PUMP can either integrate a safety valve with the front cover, or supply one as a separate unit. Please contact your supplier.

  • Page 11: Installation

    3.0 Installation 3.1 Handling and Storage   Caution must be taken when lifting the pump or pump unit. For all parts over 20kg we recommend the use of a lifting device or lifting arrangement when unpacking or moving. Check the weight guide in section 5.0 for details. See figure 3.0 and 3.1 for lifting guidance.

  • Page 12: System Design

    Protect the pump from unintended blockage from nuts, bolts, welding slag, etc, by installing a strainer. Also protect the pump from unintended operation against a closed valve by installing a safety/pressure relief valve. Strainers and relief valves can be provided by UNIBLOC-PUMP. •...
  • Page 13 • It includes shut-off valves and check valves in the system so that the flush can be turned off and stop unwanted substance from flowing in the wrong direction. • It includes monitoring equipment such as a pressure gauge in the system to ensure correct pressure is obtained. •...

  • Page 14: Double O-Ring Seal Flushing/Cooling

    3.3.2 Double O-Ring Seal Flushing/Cooling The flushing system may be arranged the same as the double mechanical seals, shown in figure 3.3.1 and 3.3.2. The double o-ring seals may also be lubricated with grease if the pump application justifies doing so. In this case, the seal flush chambers are filled through grease nipples with approved grease that is suitable for use with the pumped media.

  • Page 15: Maintenance

    Always use rubber gloves and protective goggles if handling caustic substances. The rotors and shaft seals in the pump have been selected for specific temperature and pressure conditions. Ver- ATTENTION ify with UNIBLOC-PUMP or the documentation supplied with the pump that the operating parameters are not exceeded. ATTENTION Always rinse well with clean water after using cleaning agent.

  • Page 16: Maintenance Schedule And Recommended Spare Parts

    When applications exceed constant service temperatures of 180º C (356º F) a vent and high temperature lubricant must be used. For such cases, contact UNIBLOC-PUMP or your supplier for an adequate service schedule.

  • Page 17: Single Mechanical Seal

    4.4.1 Single Mechanical Seal This type of shaft seal is used in most applications with products that have a viscosity of less than 1,000 cPs. The maximum rotational speed of this seal is 1500 rpm and the maximum service pressure is 13.5 bar (195 psig). The seal materials available are stainless steel, carbon, silicone carbide, and tungsten.

  • Page 18: Unibloc 300-575 Single Mechanical Seal Removal

    4.4.1.3 UNIBLOC 300-575 Single Mechanical Seal Removal Loosen the Stud Nuts (item 43 in Figure 4.4.1). Remove the Rotor Housing by pulling on the ports or by tapping gently with a rubber mallet. Do not rock the Rotor Housing back and forth excessively. The seals may break. The Seal Retaining Rings, the Bolts, the Stationary Seal Faces, and the Stationary Seal O-Rings will all come off with the Rotor Housing.

  • Page 19: Unibloc 501, 551, 576 Front Loaded Single Mechanical Seal Removal

    4.4.1.5 UNIBLOC 501, 551, 576 Front Loaded Single Mechanical Seal Removal Remove the Shaft O-rings (item 27 in Figure 4.4.1) located behind the shaft splines. Use two long flat head screwdrivers 180º apart to pry the Shaft Sleeve out of the Rotor Housing. Use razor blade or sharp flat head screwdriver to remove the Rotating Seal Face from the Shaft Sleeve.

  • Page 20: Flushed Single Mechanical Seal

    4.4.2 Flushed Single Mechanical Seal The flushed single mechanical seal uses the same stationary mating ring, rotating seal nose ring, spring, and o-rings as the single mechanical seal discussed in section 4.4.1. The drive collar is different, however. The flushed single mechanical is not available for UNIBLOC 200-0, 200, 250, and 275.

  • Page 21: Double Mechanical Seal

    4.4.3 Double Mechanical Seal The flushed Double Mechanical Seal uses the same Stationary Seal Faces (primary & secondary) and Stationary Seal O-rings (primary & secondary) as the Single Mechanical Seals discussed in section 2.1.2. The Drive Collar and Rotating Seal Face are different, however.

  • Page 22: Double Mechanical Seal Installation

    4.4.3.2 Double Mechanical Seal Installation Place the Stationary Seal O-Rings (primary & secondary) in the rotor housing seal bores and the Flush Housings. Only lubricate these o-rings with water or alcohol. Push the Stationary Seal Faces (primary) into the rotor housing so that they seat flat with the step in the housing.

  • Page 23: Double O-Lip™ Seal

    4.4.4 Double O-Lip™ Seal This type of seal is most frequently used with liquids that are very difficult to seal because of high viscosity. The seal comes as a single cartridge that is easily serviced. The maximum shaft rotational speed for this seal is 1,5m/s (4,9ft/s) and the maximum service pressure should not exceed 10 bar (150 psig).

  • Page 24: Unibloc 501, 551, 576 Front Loaded Double O-Lip™ Seal Removal

    4.4.4.3 UNIBLOC 501, 551, 576 Front Loaded Double O-Lip™ Seal Removal If the rotors were removed, the rotor housing does not need to be taken off. The Double O-Lip Seal Cartridge can be removed by placing screwdrivers between the rotor housing and gearbox and pushing them out. Be aware that the Wear Sleeve can slide off with the Double O-Lip Seal Cartridge during removal.

  • Page 25: Single O-Ring Seal

    4.4.5 Single O-Ring Seal This type of seal uses one o-ring, or optional quad ring, to seal against a rotating shaft. It is most frequently used when the liquid viscosity is greater than 2,000 cPs or is sticky. The seal is the least expensive of all shaft seals, but requires more frequent re- placement.

  • Page 26: Unibloc 300-575 Single O-Ring Seal Removal

    4.4.5.3 UNIBLOC 300-575 Single O-Ring Seal Removal Loosen and remove the bolts from the Threaded Studs. Remove the Rotor Housing by pulling on the ports or by tapping gen- tly with a rubber mallet. All seal parts will come off with the housing. Remove the Seal Retainer Rings by unscrewing the Bolts. The Retaining Ring O-Rings and Seal O-Rings can now be removed.

  • Page 27: Double O-Ring Seal

    4.4.6 Double O-Ring Seal This type of seal uses two o-rings, or optional quad rings, to seal against a rotating shaft. It is most frequently used when the liquid viscosity is greater than 2,000 cPs or is sticky. The maximum shaft rotational speed for this seal is 350 rpm and the maxi- mum service pressure should not exceed 8 bar (115 psig).

  • Page 28: Unibloc 200-575 Seal Installation - Final Step

      4.4.7 UNIBLOC 200-575 Seal Installation – Final Step See section 5.3 for torque limits. If not part of the shaft seal assembly, slide the plastic mounting sleeves over the splined ends of the shafts. Slide on the rotor housing (1) tap it with a rubber mallet to seat it prop- erly on the dowel pins (20).

  • Page 29: Unibloc 501 Series Seal Installation - Final Step

    2000 hours of service, whichever occurs first. When applications exceed constant service temper- atures of 1800C (3560F) a vent and high temperature lubricant must be used. For such cases, contact UNIBLOC-PUMP or an authorized service center for an adequate service schedule.

  • Page 30: Bearing Housing Disassembly

    4.5.1 Bearing housing Disassembly Remove the front cover, rotors, housing and shaft seals as de- scribed in section 4.4. Drain oil from the bearing housing by removing the drain plug, if available, or by removing the cover (7). Open the tab on the tabwashers (12) and remove them and the slotted nuts (13).

  • Page 31: Pump Assembly - Stainless Steel Rotors - Final Step

    gears, and keys from the bearing housing. Tap out the front bearing cups only to reveal the shim ring(s). Insert an appropriate shim, and then repeat the steps described in this section. If the clearances fall within the ranges specified, then proceed to section 4.5.2.2. 4.5.2.2 Pump Assembly –...

  • Page 32: Relief Valve Cover Service

    4.6 Relief Valve Cover Service UNIBLOC pumps may be supplied with a relief valve cover model #46, shown ® in section 4.6.1 or model #B shown in section 4.6.2. Both models will minimize or eliminate problems associated with over-pressurizing the pump. Although a com- plete external relief system is recommended, the types illustrated are useful when such systems are not practical.

  • Page 33: Relief Cover Model #B

    4.6.2 Relief Cover Model #B This type has bi-directional flow. No special orientation has to be adhered to. Mark the location of the lock ring (2) on the spring adjuster (1). Unscrew the spring adjuster (1) and remove it. Remove the spring (6). Look for the diaphragm washer (3) either inside the adjuster or on top of the spring for replacement.

  • Page 34: Compac Pump Series Service

    4.7 Compac Pump Series Service UNIBLOC Compac Direct and Compac Flex are flange mounted pump to flanged electric motor or gear motor. To service ® these either of these pumps, start with DISCONNECTING ALL POWER SUPPLIES. Remove bolts (1) and washers (2) as shown in figure below.

  • Page 35: Troubleshooting

    4.8 Troubleshooting PROBLEM POSSIBLE CAUSE SOLUTION No flow, but pump turns; pump Motor turning in wrong Reverse motor. does not prime direction Fill pipe and pump with liquid. Air pocket in pipe or pump. Check pipe fittings for leaks. NPSHA too low. Increase suction pipe diameter or shorten suction pipe length.
  • Page 36 PROBLEM POSSIBLE CAUSE SOLUTION Pump is noisy Cavitation. See C. Liquid contains air. Check pump shaft seals for leaks. Check suction side pipe fit- tings for leaks. Increase NPSHA. Discharge pressure too high. Check suction and discharge pip- ing for closed valves or obstruc- tions.

  • Page 37: Technical Data

    5.0 Technical Data 5.1 General Dimensions and Weights Drawing D100 shows overall dimensions for all models, 200-0 to 677. A separate service manual is required for model 600-677. 501 Series pumps are not shown in general dimensions below. UNIBLOC PUMP ®...

  • Page 38: Lubricants And Bearing Housing Oil Specification

    5.2 Lubricants and Bearing housing Oil Specification The UNIBLOC-PD pumps are factory shipped with synthetic oil from Royal Purples: Poly-Guard® FDA. The oil is FDA, OSHA and CFR compliant. Before checking the oil levels DISENGAGE THE POWER SUPPLY TO THE MOTOR. ATTENTION Permanent lubricated bearing housings;...

  • Page 39: Tools And Torque Requirements

    1) Bearing housing series 200 (Model 200-0 to 275) requires a socket removal/installation tool. Part# 6006-2 2) A plastic spline assembly sleeve is highly recommended when installing the rotor housing. UNIBLOC-PUMP can supply factory assembly sleeves. Please contact your pump supplier. Model 300/350 (Part# 6210) Model 400/450 (Part# 6220) Model 500/501 550/551 /575/576 (Part# 6230) UNIBLOC-PD Operation &...

  • Page 40: Rotor Clearances

    5.4 Rotor Clearances The tables below list the clearances between the rotor housing and the rotors. If the rotor class is not known you must contact your pump supplier to retrieve the correct clearance information. Always refer to pump serial number and/or have process condi- tions available.

  • Page 41: Pump Identification And Spare Parts

    6.0 Pump Identification and Spare Parts 6.1 Pump Identification Each pump has a unique serial number machined into the bearing housing. See detailed description under section 1.2. Each serial number is linked to a unique build code, see example 1.0 below. Example 1.0 Product Description UNIBLOC...
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  • Page 53 UNIBLOC-PUMP will repair or replace it, at UNIBLOC-PUMP’s option, and will return it by shipping it F.O.B. to the service facility. This warran- ty is void if the item has not been used as recommended or instructed, has been altered or used with unauthorized accessories, has been subject to misuse, abuse or accident, or has been dam- aged due to causes not related to poor workmanship or defective materials.

This manual is also suitable for:

Unibloc-pd 200-0Unibloc-pd 200Unibloc-pd 250Unibloc-pd 275Unibloc-pd 300Unibloc-pd 350 ... Show all

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