UNIBLOC PD600 Operation & Service Manual
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UNIBLOC PD600 Operation & Service Manual

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UNIBLOC-PD
®
Operation & Service Manual
Models: 600-677
Original Instructions
MANUAL NO.: PD600-677 REVISION: 042022

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Summary of Contents for UNIBLOC PD600

  • Page 1 UNIBLOC-PD ® Operation & Service Manual Models: 600-677 Original Instructions MANUAL NO.: PD600-677 REVISION: 042022...
  • Page 2 Information contained in this manual is subject to change without notice Copyright © 2022 and does not represent a commitment on the part of Unibloc Hygienic Unibloc Hygienic Technologies, LLC Technologies, LLC. No part of this manual may be reproduced or trans- All Rights Reserved.

  • Page 3: Table Of Contents

    4.4 Shaft Seal Service ......................13 4.4.1 Front Cover & Rotor Removal ....................... 13 4.4.2 Single Mechanical Seal .......................... 17 4.4.3 Double Mechanical Seal- MODELS: PD600, PD650, PD675 ............... 19 4.4.4 Triple O-Lip Seal- MODELS: PD600 to PD677 ..................20 ®...

  • Page 4: General

    Amendment: CR NO 10/2011: Plastic materials and articles in contact with food A technical construction file for this machinery is retained at the above address. Signed: Date: January 12, 2021 Bhavesh Patel, Operations Manager Q42.2101.1 4 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 5: General Description

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

  • Page 6: Noise Emission

    Make sure the pipes are well supported as the pump is not meant to serve this purpose. Keep in mind that pipes filled with liquid are very heavy. See fig. 2.1 for recommended pipe layout. WRONG RIGHT fig. 2.1 6 UNIBLOC-PD Operation & Service Manual: PD600-677...
  • Page 7 If an integrated safety relief valve is installed, do not allow extended periods of recircu- lation 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 8: Installation

    If installation of the pump is delayed, store and protect the unit properly by: • Not removing plastic port protectors. • Selecting a clean, dry storage location free from vibration. In a moist or dusty atmosphere, further protect the pump/assembly with suitable cover. 8 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 9: 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 10 Recommended Flush System Arrangement: PD600 & PD650 HORIZONTAL PUMP PORTS VERTICAL PUMP PORTS FLUSH FLUSH INLET OUTLET FLUSH OUTLET CONTROL VALVE SHUT OFF (i.e. diaphram valve) VALVE CHECK PRESSURE VALVE GAUGE CONTROL VALVE (i.e. diaphram valve) PRESSURE GAUGE CHECK VALVE...

  • Page 11: Double O-Ring & O-Lip Seal Flushing/Cooling

    In this case, the seal flush chambers are filled through grease nip- ples with approved grease that is suitable for use with the pumped media. Unibloc recommends using Lubriplate Synxtreme FG-2 calcium sulfonate complex grease. The chambers must be filled completely for proper operation.

  • Page 12: 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. Verify with Unibloc-Pump or the documentation supplied with the pump that the operating parameters are not exceeded.

  • Page 13: Maintenance Schedule And Recommended Spare Parts

    It is also recommended to have shut-off valves on both sides for easy isolation of pump if manual service is required. The UNIBLOC-PD bearing housing is supplied permanently lubricated with nitrile seals. However, for certain applica- tions and at the user’s request, drain plugs and a vent will be supplied. When applications exceed constant service temperatures of 180º...
  • Page 14 ROTORS. THEY WILL BE DAMAGED. Be sure to place the rotors in a safe place while maintenancing the pump as they can be easily damaged (see fig. 4.4). ROTOR HOUSING ROTORS ROTOR LOCKING NUT O-RINGS ROTOR LOCKING NUTS ROTOR BOLT O-RINGS ROTOR BOLTS fig. 4.4 14 UNIBLOC-PD Operation & Service Manual: PD600-677...
  • Page 15 The Front Cover Wear Rings may be removed from the Front Cover by gently pulling them from the spigots. Once removed, be sure to store wear rings in a safe place. FOODFIRST FRONT COVER (HP) SPIGOTS FRONT COVER WEAR RINGS fig. 4.4.3 UNIBLOC-PD Operation & Service Manual: PD600-677 15...
  • Page 16 6.5), remove the wear ring and place a generous amount of food grade grease on each dowel pin before aligning and installing the wear ring for final installation. DOWEL PIN HOLES FRONT COVER WEAR RINGS fig. 4.4.7 16 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 17: Single Mechanical Seal

    Viton or EPDM, either food or FDA grade, but may be replaced with other materials as applications dictate. The seal can be serviced without removing the rotor housing. 4.4.2.1.1 Single Mechanical Seal Removal- MODELS: PD600, PD650, PD675 (reference figs. 4.1, 4.5) Slide the stainless steel Rotors off the shafts.
  • Page 18 Place a product compatible lubricant on the sealing surfaces of the Stationary Seal Faces and Rotating Seal Faces. Slide the Rotors on the Shafts. Proceed to section 4.4.6 to complete the installation. 18 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 19: Double Mechanical Seal- Models: Pd600, Pd650, Pd675

    4.4.3 Double Mechanical Seal- MODELS: PD600, PD650, PD675 (reference fig. 4.7) This type of shaft seal is used in most applications with products that have a viscosity of less than 14,000 cPs. The maximum rotational speed of this seal is 600 rpm and the maximum service pressure is 20.7 bar (300 psig). The flushed double mechanical seal uses the same Rotating Seal Faces (primary), Stationary Seal Faces (primary), O-rings, Retaining Rings, and Pins as the single mechanical seals discussed in section 4.4.2.

  • Page 20: Triple O-Lip ® Seal- Models: Pd600 To Pd677

    Coat all O-rings, Shafts, and the seal surface of the Wear Sleeves with a lubricant that is acceptable for contact with the product. Slide the Wear Sleeves on the Shafts and locate on the Anti-Rotation Pins. Slide mounting 20 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 21: Double O-Ring Seal

    The rotor housing must be removed to service the rear loaded Double O-Ring Seal on the PD600, PD650, and PD675 models. 4.4.5.1.1 Double O-Ring Seal Removal (REAR LOADED)- MODELS: PD600, PD650, PD675 (reference figs. 4.1, 4.9) Slide the Rotors off the Shafts.
  • Page 22 4.4.5.2.1 Double O-Ring Seal Removal (FRONT LOADED)- MODELS: PD600, PD650, PD675 (reference figs. 4.1, 4.9, 4.10) Slide the Rotors off the Shafts. If the rotors will not slide off they can be removed simultaneously with the Rotor Housing. Unless they are being replaced, DO NOT USE PLIERS OR CHANNEL LOCKS TO REMOVE THE RO- TORS.
  • Page 23 3. Remove Seal Cartridge by pulling on Seal Cartridge engaged with Seal Cartridge by slightly tool away from pump. twisting tool in clockwise direction Double O-ring Seal Removal with Seal Removal Tool fig. 4.12 UNIBLOC-PD Operation & Service Manual: PD600-677 23...

  • Page 24: Seal Installation- Final Steps

    Bearing Housing as described in section 6.2. If flushed seals were installed, reconnect the flush tub- ing. Refer to section 3.3 before starting the pump. ROTOR HOUSING DOWEL PINS FRONT COVER STUDS FRONT COVER O-RING FRONT COVER FRONT COVER STUD NUTS fig. 4.14 24 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 25: Bearing Housing Maintenance And Service

    (FRONT BEARING RETAINER RINGS) The UNIBLOC-PD bearing housing contains a single lubricating oil chamber. The oil level should be checked at regular intervals and the oil should be changed once per year or after 2000 hours of operation, whichever occurs first.

  • Page 26: Bearing Housing Assembly

    Assembly sleeve 6190A with the proper bearing contact lip and guide is available from Unibloc-Pump (see section 6.3.2). Make sure the sleeve does not damage the threads or surfaces of the shaft (see fig. 4.18).
  • Page 27 (rear bearing). Assembly Sleeve 6190B with the proper seated firmly against the gearbox bore shoulder (see fig. 4.21). bearing contact lip is available from Unibloc-Pump (see section 6.3.2). Make sure the sleeve does not damage the threads or surfaces of the shaft (see fig. 4.23)
  • Page 28 Seal into the Cover and secure the Cover to the Bearing Housing with the Bolts. Tap in the Drive Shaft Key (see fig. 4.26). DRIVE SHAFT KEY BOLTS OIL SEAL COVER O-RING BEARING HOUSING fig. 4.26 28 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 29: Troubleshooting

    Replace bearings. Gears worn. Replace gears. Foreign particles in pump. Install suction side filter. Particles in product too large. Increase rotor clearances. Use plastic rotors. Increase pump size. Discharge pressure too high. See B-4. UNIBLOC-PD Operation & Service Manual: PD600-677 29...
  • Page 30 Can come in contact with seals. out flushing liquid. Replace worn seal parts. Seal incompatible with liquid Contact factory for proper seal selection, operation, and replace if necessary. 30 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 31: Technical Data

    Ø MODEL KG (LBS.) 600/602 4” (3.46) (22.6) (410) 650/652 4” or 6” (17.3) (22.5) (4.45) (23.6) (3.86) (17.5) (8.86) (17.1) (5.51) (12.2) (3.35) (2.76) (440) 1050 6” or 8” (5.43) (24.6) (476) UNIBLOC-PD Operation & Service Manual: PD600-677 31...

  • Page 32: Lubricants And Bearing Housing Oil Specification

    Reattach the vents and oil plugs and resume operation. VENT (OPTIONAL) SIGHTGLASS OIL DRAIN PLUG Horizontal Ports VENT (OPTIONAL) OIL DRAIN PLUG SIGHTGLASS Vertical Ports 32 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 33: Torque Requirements & Special Tools

    SOCKET/ WRENCH (17MM) 50 (37) 6.3.2 Special Tools There are only a few special tools needed to assemble Unibloc PD600 Series pumps in a safe and secure way. Please contact your pump supplier for ordering information. P.N. 6010-2 P.N. 6007-2...

  • Page 34: Rotor Clearances

    (9.8-10.6) (35.4-36.2) (8.3-9.1) (19.7-20.5) (9.8-10.6) (29.5-33.5) (9.8-13.8) 58-60 25-27 107-109 24-26 58-60 25-27 95-105 35-45 650/652 650/652 (22.8-23.6) (9.8-10.6) (42.1-42.9) (9.4-10.2) (22.8-23.6) (9.8-10.6) (37.4-41.3) (13.8-17.7) CONTACT UNIBLOC-PUMP FOR CLEARANCES CONTACT UNIBLOC-PUMP FOR CLEARANCES 34 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 35: Foodfirst Wear Ring Ranges

    ACCEPTABLE RANGE DISCARD & REPLACE 1.3mm to 1.0mm LESS THAN 1.0mm fig. 6.7 FRONT COVER WEAR RING WEAR RANGE (ref. fig. 6.7) DIMENSION ACCEPTABLE RANGE DISCARD & REPLACE 0.8mm to 0.4mm LESS THAN 0.4mm UNIBLOC-PD Operation & Service Manual: PD600-677 35...

  • Page 36: Pump Identification And Spare Parts

    -double o-ring seal -ACME thread -triple O-Lip seal ® -rectangular inlet Elastomer Type -custom -4.0 inch -EPDM -6.0 inch -Kalrez -8.0 inch -Buna N -horizontal port configuration -Silicone -vertical port configuration -Teflon encapsulated Viton -Viton 36 UNIBLOC-PD Operation & Service Manual: PD600-677...

  • Page 37: Spare Parts

    7 .2 Spare Parts UNIBLOC-PD Operation & Service Manual: PD600-677 37...
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  • Page 55 Unibloc to arrange return of the faulty product, shipping prepaid and fully insured, to an authorized Unibloc service facility. If upon inspection of the item in question, defects in workmanship or materials are revealed, Unibloc’s sole obligation under this...

This manual is also suitable for:

Pd650Pd675Pd677

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