BIFFI WGR Series Instructions And Operating Manual

Worm gear reducer

Hide thumbs

page of 46

/ 46
Bookmarks

Quick Links

Download this manual

WGR - Worm Gear Reducer

Instruction and Operating Manual

19/01/2017

18/04/2016

11/06/2012

08/03/2012

23/05/2010

04/12/2007

Rev.

Date

MAN 684

Added sight glass with optional

relief version

Updated applicable regulation

(chapter 1.7)

Revised chapter 11 (parts list)

Revised Pictures

Revised Chapter 7

Issue

Description

WGR – Worm Gear Reducer

Instruction and operating manual

Toscani

Orefici

Ermanni

Orefici

Ermanni

Ghiadoni

Guarnieri

Ghiadoni

Schiavi

Ghiadoni

Orefici

Alfieri

Prepared

Verified

Vigliano

Alfieri

Approved

MAN 684/Rev 5 Page

Table of Contents

Need help?

Do you have a question about the WGR Series and is the answer not in the manual?

Questions and answers

Summary of Contents for BIFFI WGR Series

Page 1 Revised chapter 11 (parts list) 08/03/2012 Revised Pictures Guarnieri Ghiadoni Vigliano 23/05/2010 Revised Chapter 7 Schiavi Ghiadoni Vigliano Orefici 04/12/2007 Issue Alfieri Alfieri Rev. Date Description Prepared Verified Approved © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 2 WGR – Worm Gear Reducer Instruction and operating manual BIFFI ITALIA has taken every care in collecting and verifying the documentation contained in this Instruction and Operating Manual. The information herein contained are reserved property of BIFFI ITALIA. Contents may change without notice.
Page 3 ASSEMBLING THE WORM GEARBOX ONTO THE VALVE ........... 13 ADJUSTING THE MECHANICAL STOPPERS ..............15 Grease-lubrication-type gearbox (WGR standard type) Oil-lubrication-type gearbox (WGR-DW series models) MAINTENANCE ........................ 17 Standard Maintenance Special Maintenance © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 4 WGR1600 Parts List 11.7 WGR3200 Parts List 11.8 WGR6300 Parts List 11.9 Optional Relief on sight glass Parts List ( applicable to all WGR Models) DISASSEMBLING AND DEMOLITION ............... 44 © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 5: General Safety Instructions
They are designed for motor operation in conjunction with electric actuators. BIFFI ITALIA will not be liable for any possible damage or physical injury resulting from use in other than the designated application or by lack of care during installation, operation, adjustment and maintenance of the machinery.
Page 6 Instruction and operating manual Terms and conditions BIFFI ITALIA guarantees each single product to be free from defects and in accordance to current goods specifications and applicable regulations. The warranty period is 12 months from the date of installation by the first User or 18 months from the date of shipment to the first User, whichever occurs first.
Page 7: Machine Description
5° for each rotation direction. The housing is provided with an optional vent valve in order to avoid any eventual overpressure. © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 8: Main Parts Description
Main Reduction Case Epicyclical Reduction Case Mechanical Stoppers Picture 1 WGR Identification and Characteristics Label Open Position Label Closing Direction Label Close Position Label Position Indicator Picture 2 © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 9: Technical Data
WGR gear boxes are also available with protection degree IP68 according to EN60529 (the enclosure protection IP68 refers to the interior of the gearboxes, but not to the coupling compartment). Please check with Biffi the acceptance of the submersion request (depth, medium, etc.) in order to verify the compatibility requirements.
Page 10: Transport And Storage
If the worm gearbox is assembled onto the electric actuator, hoist it with ropes or hooks making sure they are  attached to the gearbox and not to the actuator. © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 11 For the storage of the Electric Actuator supplied together with the worm gearbox, please refer to the storage instructions included in the actuator’s IOM (MAN 618). © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 12: Installation
5.2.2 Installation in ambient with explosive dusts Important For the installation of the assembly WGR - Electric Actuator in ambient with explosive dusts, please refer to the Electric Actuator IOM (MAN 618). © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 14 WGR – Worm Gear Reducer Instruction and operating manual Recommended tightening Thread size torque (Nm) 1100 1700 If possible, operate the actuator to check that it moves the valve smoothly.  © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 15 6. Tighten the stopper (2) until it stops, then step back a quarter of turn. 7. Tighten the nut (1). Open position: the same procedure of closed position, on the opposite stopper. © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 17: Maintenance
In case of malfunction, in case of grease leaks, or in case of scheduled preventive maintenance, the worm gearbox must be disassembled: any damaged part can be requested from BIFFI with reference to the attached exploded view drawing and parts list.
Page 18 (1) screws: unscrew to remove position indicator cover (5) screws: unscrew to remove the upper cover (2) screws: unscrew to remove position indicator (3) position indicator Picture 5 © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 19 (2) screws: unscrew to remove position indicator (8) trunk (7) screws: unscrew to (3) position indicator remove the trunk Picture 6 (10) o-ring Main Reduction (9) Flexoid gasket Epicyclical Reduction Picture 7 © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 20 Remove the operating gear (planet wheel) (2)  Remove the seeger (3)  Remove the satellite holder (4)  (3) Seeger (2) Planet Wheel (1) Pin (4) Satellite Holder Picture 8 © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 21  Remove the endless screw (4)  Remove the second thrust ball bearings couple (5)  Remove the gear (6)  (2) Thrust Flange (1) Bolts Picture 9 © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 22 Remove the reductions as explained in Par. 9.2 and 9.3  Grease the worm screw and the two thrust ball bearings couple (Picture 11)  Grease the gears of the epicyclical reduction (Picture 12)  © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 23 Picture 11 Gears to be greased if necessary Picture 12 Important Before reassembling the worm gearbox, the flexoid gasket and the o-ring (please see Para 8.1) must be replaced. © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 25 Oil Quantity [ml] WGR100 WGR200 WGR400 WGR800 1000 WGR1600 2200 WGR3200 WGR6300 9500 This lubricant is suitable for a temperature range of -30°C to +85°C (from -22°F to +185°F). © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 26 Remove both the oil plugs (1) with a hex-head wrench  Refill by pouring the oil inside one hole (the other hole is used for pressure compensation)  (1) Oil plugs Picture 13 © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 27: Parts List
WGR – Worm Gear Reducer Instruction and operating manual PARTS LIST 11.1 How to Order Parts List To order parts or obtain further information about Biffi valve actuators, contact your local distributor sales office Biffi Italia S.r.l. Località Caselle San Pietro 29017 FIORENZUOLA D’ARDA...
Page 42 Also note the possibility of providing, on request, the option of stopper provided with stopper protection ( please refer to item 2+3+4+5 of DETAIL B). Please refer to detail “B” in picture here below. © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...
Page 44 12 DISASSEMBLING and DEMOLITION BIFFI gearboxes have en extremely long lifetime, but after several years of operation they have to be replaced. The design of the gearboxes allows an easy disassembly. When disassembling, please separate and sort the various parts according to materials, i.e.:...
Page 46 WGR – Worm Gear Reducer Instruction and operating manual BIFFI ITALIA s.r.l. Loc. Caselle S. Pietro 29017 Fiorenzuola d’Arda -Piacenza - ITALY - Tel. (0523) 944411 - Fax (0523) 941885 E_mail: biffi_italia@biffi.it © Copyright by BIFFI Italia. All right reserved MAN 684/Rev 5 Page...

This manual is also suitable for:

Wgr 100 Wgr 200 Wgr 400 Wgr 800 Wgr 1600 Wgr 3200 ... Show all

BIFFI WGR Series Instructions And Operating Manual

Quick Links

Need help?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for BIFFI WGR Series

Summary of Contents for BIFFI WGR Series

This manual is also suitable for: