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March 2021

Installation, Operation and Maintenance Manual

 

MAN 604-1A Rev. 6

Operation and Use

18

Section 3: Operation and Use

 

 

3.1.3 

Travel Stop-screw Screwed on the End Flange of

 

Spring Container

For the adjustment of the travel stop-screw, proceed as follows:

For the adjustment of the travel stop screw, proceed as follows:

1. 

Loosen the lock nut “d”.

2. 

If the actuator angular stroke is stopped before reaching the end position,

 

unscrew the stop screw “v” by turning it anticlockwise until the valve reaches the 
correct position.

3. 

If the stop-screw is too hard to be operated, reduce or remove the cylinder 
pressure, in order to move the mechanism far from the screw. Operate the

 

setting-screw and then pressurize again the cylinder to reach end position.

4. 

If the actuator angular stroke is stopped beyond the end position, screw the stop 
screw by turning it clockwise until the valve reaches the correct position.

5. 

Tighten the lock nut, after having correctly placed the threaded seal washer “s” 
and “w”.

Figure 16 

For model from 006 to 150

Figure 17 

For model from 200 to 19600

Содержание ALGAS

Страница 1: ...our website www biffi it or from your nearest Biffi Center Biffi Italia s r l Strada Biffi 165 29017 Fiorenzuola d Arda PC Italy PH 39 0523 944 411 biffi_italia biffi it Biffi ALGAS MHW or MRHW Spring...

Страница 2: ...6 March 2021 Migration to new template 5 December 2019 Added Declutch able type Ermanni Orefici Vigliano 4 March 2018 Update Data plate Ermanni Orefici Vigliano 3 April 2016 Updated applicable regulat...

Страница 3: ...5 2 3 2 Valve Stem with Vertical Axis 10 2 3 3 Valve Stem with Horizontal Axis 13 Section 3 Operation and Use 3 1 Setting of the Angular Stroke 16 3 1 1 Travel Stop screw Screwed on the End of Manual...

Страница 4: ...lacement of the Seals of Manual Override MHW 28 5 2 3 Replacement of the Seals of Reduced Manual Override MRHW 29 5 3 Lubrication of Mechanism 35 5 4 Dismantling and Demolition 36 Section 6 Troublesho...

Страница 5: ...odified without notice 1 1 1 Applicable Regulation EN ISO 12100 2010 Safety of machinery General principles for design Risk assessment and risk reduction 2006 42 EC Machine directive 2014 68 EU Direct...

Страница 6: ...warranty can last either one year from the date of installation by the initial user of the product or eighteen months from the date of shipment to the initial user depending on which event occurs firs...

Страница 7: ...l and simplifies assembly The spring action can be easily changed in the field from to close in to open or from to open in to close modular design The angular stroke of the yoke is adjustable between...

Страница 8: ...nt finish these conditions are guaranteed by an individual inspection certificate in order to maintain these characteristics until the actuator is installed on the plant it is necessary to observe a f...

Страница 9: ...in accordance with ISO 5211 but for actuator models 0 3 to 6 the holes are drilled on the centreline in order to allow an easier assembly of an intermediate flange when required This intermediate fla...

Страница 10: ...tion 45 d2 0 1 d3 0 2 d1 0 h 1 0 5 d4 h 2 d5 0 2 0 1 K 0 4 0 W D10 0 6 Section 2 Installation Dimensions in millimeters Actuator model d1 d2 d3 d4 N h1 h2 H max d5 W K Table 2 SCN6200 max H max Figure...

Страница 11: ...nual MAN 604 1A Rev 6 March 2021 Installation d1 d4 h 2 d2 0 1 0 d3 0 2 h 1 0 5 0 d5 0 2 0 1 K 0 4 0 W D10 7 Section 2 Installation N 12 holes flange N 16 holes flange max Table 3 SCN6201 Dimensions i...

Страница 12: ...d1 d4 h 2 d2 0 1 0 d3 0 2 h 1 0 5 0 d5 0 2 0 1 K 0 4 0 WD10 8 Section 2 Installation max Figure 4 Coupling dimensions Models 50 and 60 Dimensions in millimetersw Actuator model d1 d2 d3 d4 N h1 h2 H m...

Страница 13: ...for the standard models size 0 3 to 6 Biffi can supply an insert bush with unmachined bore in accordance with Biffi standard table SCN6202 On request the insert bush bore can be machined by Biffi to c...

Страница 14: ...ed personnel and in accordance with the laws and regulations in force Avoid the lifted actuator to be hung above the personnel WARNING The actuator must be lifted by means of a suitable lifting appara...

Страница 15: ...rsional effects on the load being lifted Use the utmost caution and remain at a safe distance from lifted actuator unless absolutely necessary do not stand or pass under suspended loads Pay attention...

Страница 16: ...the assembly easier Be careful not to pour any of it onto the flange 4 Clean the valve flange and remove anything that might prevent a perfect adherence to the actuator flange and especially all trace...

Страница 17: ...he holes of the actuator flange or the stud bolts screwed into them the actuator drive sleeve must be rotated feed the actuator cylinder with air at proper pressure indicated on data sheet for actuato...

Страница 18: ...t and lift the actuator until to make possible the rotation of actuator in its final mounting position with cylinder on top or spring container placed on top as showed in the following images Figure 1...

Страница 19: ...entered the actuator drive sleeve check the holes of the valve flange If they do not meet with the holes of the actuator flange or the stud bolts screwed into them the actuator drive sleeve must be ro...

Страница 20: ...beyond the end position fully open or closed valve actuate the handwheel of manual override and screw the stop screw by turning it clockwise until the valve reaches the right position 5 Tighten the lo...

Страница 21: ...ntenance Manual MAN 604 1A Rev 6 March 2021 Operation and Use 17 Section 3 Operation and Use Figure 15 Table 7 3 1 2 Travel Stop screw Screwed on the End of Mechanical Manual Override Table 8 ALGAS ac...

Страница 22: ...he stop screw v by turning it anticlockwise until the valve reaches the correct position 3 If the stop screw is too hard to be operated reduce or remove the cylinder pressure in order to move the mech...

Страница 23: ...100 5400 17 100 8300 17 100 9200 17 100 9400 17 100 9600 17 100 9800 17 100 9900 17 100 10500 17 100 11000 17 100 12000 17 100 15000 17 130 15400 17 130 15600 17 130 17300 17 130 18400 17 130 18600 17...

Страница 24: ...of operation being carried out as clearly reported on the microswitch End of stroke microswitches should be operated before the stop of the stroke of the actuator due to mechanical stops Adjust the re...

Страница 25: ...the operation of the actuator with pressure drops not exceeding the maximum allowable value The shape of the connecting piping must not cause excessive stress to the inlets of the actuator The piping...

Страница 26: ...onnect the electrical feed control and signal lines to the actuator by linking them up with the terminal blocks of the electrical components In order to do this the housing covers must be removed with...

Страница 27: ...ests and Inspections 23 Section 4 Operational Tests and Inspections Section 4 Operational Tests and Inspections NOTICE To ensure the guaranteed SIL grade according to IEC 61508 the functionality of ac...

Страница 28: ...actuator operates the valve correctly and with the required operating times If the actuator operation is very infrequent carry out a few opening and closing operations with all the existing controls...

Страница 29: ...reference to the follow general sectional drawing and adopting the following procedures WARNING If the actuator can be operated it is essential to take it to fail safe position with the spring totally...

Страница 30: ...ctive grease film 1 Replace the O ring 47 of the head flange 17 2 Replace the O ring 49 and the guide sliding ring 48 of the piston 21 3 Replace the O ring 47 of the end flange 22 5 2 1 2 Re assembly...

Страница 31: ...bush 56 Jackscrew 7 Screw 32 Washer 57 Thrust bearing washer 8 Housing 33 Cover 58 O ring 9 Guide bar 34 Screw 59 O ring 10 Cover gasket 35 Guide block pin 60 Handwheel 11 Yoke 36 Vent valve 61 Screw...

Страница 32: ...be 51 7 Remove the O rings 58 59 from their grooves in the flange Carefully clean the grooves and lubricate them with protective grease film Assemble the new O rings into their grooves and lubricate t...

Страница 33: ...clean the grooves and lubricate them with protective grease film Assemble the new O rings into their grooves and lubricate them 8 Move the spacer bracket along the protection tube up to reach its work...

Страница 34: ...orm gear box upper body Aluminium ASTM B85 73 Alloy S12B 15 1 O ring NBR 16 1 O ring NBR 17 1 Drive sleeve Carbon steel API 5LX gr X52 18 1 Jackscrew Alloy steel bronze AISI SAE 9840 ASTM B427 Alloy 9...

Страница 35: ...rbon steel AISI SAE 1040 14 1 Gear box Aluminium ASTM B85 73 Alloy S12B 15 1 O ring NBR 16 1 O ring NBR 17 1 Drive sleeve Carbon steel API 5LX gr X52 18 1 Jackscrew Alloy steel bronze AISI SAE 9840 AS...

Страница 36: ...ng screw Alloy steel 6 1 Washer Carbon steel 7 1 Seat scrape ring Carbon steel 8 1 Nut Stainless steel 9 1 Jackscrew Alloy steel bronze 10 1 Thrust bearing washer Alloy steel 11 1 O ring NBR rubber 12...

Страница 37: ...Installation Operation and Maintenance Manual MAN 604 1A Rev 6 March 2021 Maintenance 33 Section 5 Maintenance Figure 24 Mechanical manual override DMRHW Declutch able Reduced...

Страница 38: ...her Carbon steel 19 1 Nut Carbon steel 20 1 O ring NBR rubber 21 1 Handwheel Carbon steel 22 1 Bushing Stainless steel 23 1 O ring NBR rubber 24 2 Bushing Steel Bz Teflon 25 1 Spacer Stainless steel 2...

Страница 39: ...e into spring cartridge for this operation remove the plug on end flange of spring cartridge and restore a generous coating of grease The following grease is used by Biffi for standard working tempera...

Страница 40: ...s discharged from the cylinder by the linear movement generated from the spring releasing It moves actuator and consequently the valve in hits fail safe position If actuator is still mounted onto the...

Страница 41: ...low Low supply pressure Restore Section 1 4 Wrong calibration of flow regulator valves Restore Section 3 6 Bad functioning of quick exhaust valve Call Biffi Italia s r l Customer Service Wear of the v...

Страница 42: ...e to Biffi order confirmation concerning all the supply and serial number of the actuator Section 1 2 for any specific spare part for a specific actuator model Please send every spare parts request to...

Страница 43: ...que MOT has to be 1 5 The actuator mechanism has to be lubricated in accordance with indication given on this IOM Table 18 Parts List Item Qty Description Material 1 4 O ring NBR rubber 2 2 Yoke bushi...

Страница 44: ...ing NBR 4 1 Head flange Carbon steel 5 16 Nut Carbon steel 6 8 Tie rod Alloy steel 7 1 Cylinder tube Carbon steel 8 1 Piston Rod Alloy steel 9 1 Piston Carbon steel 10 1 End flange Carbon steel 11 1 L...

Страница 45: ...Washer Carbon steel 3 1 Sealing washer PVC 4 1 Stop setting screw Carbon steel 5 1 Spring container Carbon steel 6 1 Spring Carbon steel 7 1 Nut Carbon steel 8 1 Shoulder washer Alloy steel 9 1 Rod b...

Страница 46: ...ecommended spare parts Table 21 Parts List Figure 28 Assembly kit Item Qty Description Material 1 4 Screw Alloy steel 2 1 Gasket Fiber 3 1 Side plate Carbon steel 4 2 Gasket Fiber 5 1 Washer Carbon st...

Страница 47: ...ance Operations 43 Section 8 Date Report for Maintenance Operations Section 8 Date Report for Maintenance Operations Last maintenance operation date in factory on delivery exec by exec by exec by Next...

Страница 48: ...ublication are presented for information purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regardi...

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