mastergearos
Homepage | Products | Order data sheets | Assembly instructions | Storage and maintenance | About us | Certificates | News

MF series valve actuators MF-IS

The MF-IS series is one of valve part turn actuators with integral spur gear provide as a second (third) stage gear reduction for multi turn actuator drivers to meet torques and operating times required by the industry. Applications for buried service or remote drive can also be satisfied by utilizing the input flange feature. The cast iron construction with integral spur gear and rugged design of the Mastergear MF-IS range of valve actuators has been engineered to meet the arduous requirements demanded of industrial environments.

Through corrosion resistant treatment of bore metal surface and the use of lip seals, the MF range is dealer to IP67. All models use high performance pinion and main wheel of spur gear, axial needle bearings which, combined with a one piece wormshaft, maximizes the available mechanical advantage and overall unit efficiency.

Features and general specification:

Sealed IP67 Available for buried serviceIP68 Capability to withstand an overload of twice their maximum torque rating
Maintenance freey   Self locking
Designed for this temperatures
-40°C +80°C - SLO39
-60°C +60°C - SLO20
+20°C - +200 °C - SLO21
-60°C +60°C - SL120		 Up to 167.000Nm output torque 7 Frame sizes
Integral spur gear in gearbox body Optional drive bushes
Input flanges to ISO5210 & DIN 3210 with keyed input shaftUniversal versatility for direct fixing to valves 50% grease fill for life
 

 

Item.

Description

 SLO39
-40°C / +80°C
Standard

SLO20
-60°C / +80°CNot shock proof

SL120
-60°C / +80° Shock proof

1

  Cover/input flange

Grey cast iron

S.G. cast iron

Low temperature steel

2

 Gearcase

Grey cast iron

S.G. cast iron

Low temperature steel

3

  Wormshaft oilseal

NBR

PTFE

PTFE

4

  Quadrant

S.G. cast iron GGG500

S.G. cast iron GGG500

S.G. cast iron GGG500

5

  Wormshaft

Nitempered steel

S.G. cast iron GGG500

S.G. cast iron GGG500

6

  Wormshaft bearings

Sintered iron cooper

Steel

Steel

7

  Indicator cap

Injection moulded plastic

Grey cast iron

Grey cast iron

8

  Name plate

Self adhesive aluminum

Self adhesive aluminum

Self adhesive aluminum

9

  Cover screw

Steel

Stainless steel

Stainless steel

10

  Stop screw

Steel

Stainless steel

Stainless steel

11

  Locknuts

Steel

Stainless steel

Stainless steel

12

  Bearing thrust washers

Needle thrust washer

Needle thrust washer

Needle thrust washer

13

  Thrust bearings

Needle thrust bearing

Needle thrust bearing

Needle thrust bearing

14

  Indicator O-ring

NBR

PTFE

PTFE

15

  Guadrant O-ring

NBR

PTFE

PTFE

16

  Dowels

Hardened & ground steel

Hardened & ground steel

Hardened & ground steel

17

  Locknut protection cap

 Polyurethane

Polyurethane

Polyurethane

18

 Protection sleeve

Steel

Steel

Steel

19

 Bearing

NBR

PTFE

PTFE

20

 Key

Steel

Steel

Steel

21

 Circlip

Deep groove ball bearing

Deep groove ball bearing

Deep groove ball bearing

22

 Sealings ring

NBR

PTFE

PTFE

23

 Protection sleeve retainer

Carbon steel

Carbon steel

Carbon steel

Table number 1:

Maximal outpup torque for mode 1 - 2.500 working cycles Nm 6.600 10.800 20.000
Maximal outpup torque for mode 2 - 1.000working cycles Nm 8.000 13.000 24.000
Gearbox type   MF20 MF30 MF40
Spur gear type   MF20 MF20.1 MF20/SI3,5 MF20.1/SI3,5 MF30 MF30.1 MF30.2 MF30/SI3,5 MF30.1/SI3,5 MF40 MF40.1 M40.3 MF40.4 MF40.5 MF40/SI3,5 MF40.1/SI3,5 MF40.3/SI3,5
Input motor adapter   F10 F10 F10 F10 F10 F10 F10 F10 F10 F10 F10 F10 F10 F10 F10 F10 F10
  F14 F14     -   F14 F14 F14     - - F14 F14 F14 F14 F14     -     -     -
Maximal input torque mode 1 Nm 116,0 218,5 35 66,2 110,0 177,6 90,9 35 27,6 106 240,7 167,7 117 85,9 32,1 73,0 32,1
Maximal input torque mode 2 Nm 140,0 265,0 42 80,3 132,0 213,8 110,2 42 33,4 127 288,8 201,2 140,4 103,0 38,5 87,5 38,5
Ratio   183 : 1 96,9 : 1 640,5 : 1 339,2 : 1 309,1 : 1 191,3 : 1 228,3 : 1 1051,5 : 1  669,5 : 1 615,2 : 1 271 : 1 369 : 1 557 : 1 759 : 1 2153,2 : 1 948,5 : 1 1291,5 : 1
Factor +- 10%   57,1 30,2 183,0 99,6 98,3 60,8 72,6 314,5 194,5 188,7 83,1 119,3 171,0 233,0 622,7 274,2 381,7
Base valve flange ISO 5210   F 16 - 25 F 20 - 25 - 30 F - 25 -30- 35- 40 - 48
Drive bush type   DB20 DB30 DB40
Valve stem dia. (max.)  to drive bush mm 70,0 90,0 130,0
Valve stem dia. (max.)   mm. mm 92,0 124,0 165,0
Valve satem lenghts  (max.)  mm. mm 116,0 144,0 203,0
Weight kg 46/51,5 51,5 54 54 87/92 87/92 87/92 95,5 95,5                
                                     
    valve output torque
Výstupní moment servopohonu v Nm 30 Nm 1713 906 5490 2988 2949 1824 2178 9435 5835 5661 2493 3597 5130 6990 18681 8226 11451
60 Nm 3426 1812 - 5976 5898 3648 4356 - 11670 11322 4986 7158 10260 13980 - 16452 22902
120 Nm 6852 3624 - - 11796 7296 8712 - - 22640 9972 14316 20520 - - - -
160 Nm - 7550     - - -   - - 20775 - - -   - -
200 Nm - -     - - -     - - - -        
    closing time for 90° degrees
Actuator speed in revolutions per minute 10 s. 275 145 961 509 464 287 342 1577 1004,3 923 407 554 836 1139 3230 1423 1937
16 s. 172 91 600 318 290 179 214 986 628 577 254 346 522 712 2019 889 1211
22 s. 125 66 437 231 211 130 156 717 456 419 185 252 380 518 1468 647 881
32 s. 86 45 300 159 145 90 107 493 314 288 127 173 261 356 1009 445 605
45 s. 61 32 214 113 103 64 76 351 223 205 90 123 186 253 718 316 431
63 s. 44 23 153 81 74 46 54 250 159 146 65 88 133 181 513 226 308
90 s. 31 16 107 57 52 32 38 175 112 103 45 62 93 217 359 158 215
125 s. 22 12 77 41 37 23 27 126 80 74 33 44 67 91 258 114 155
180 s. 15 8 53 28 26 16 19 88 56 51 23 31 46 63 179 79 108

Table number 2:

Maximal outpup torque for mode 1 - 2.500 working cycles Нм 41.670 63.000 112.500 112.584 140.000 169.500
Maximal outpup torque for mode 2 - 1.000working cycles Нм 50.000 68.000 112.500 135.035    
Gearbox type   MF50 MF55 MF60 MF60 MF70 MF70
Spur gear type in development in development
MF50 MF50.1 MF50.2 MF50.3 MF50.2/SI3,5 MF50/SI3,5 MF55 MF55.1 MF55.1/SI3,5 MF60.X MF60 MF70.2 MF70
Input motor adapter F10 F10 F10 F10 F10 F10 F10 F10 F10 F16 F14 F16 F14
  F14 F14 F14 F14 - - F14 F14 - F25 F16 F25 F16
Maximal input torque mode 1   108,0 314,0 196,7 197,0 61,7 32,7 182,0 287,6 83,4 511,3 102 958,2 231,0
Maximal input torque mode 2 Нм 130,0 376,0 236 236,0 74,0 39,4 196,5 310,5 90,0 511,3 123 - -
Ratio   1219,8 : 1 327,1 : 1 593,2 : 1 694,6 : 1 2076,2 : 1 4269,3 : 1 1219,8 : 1 674 : 1 2359,4 : 1 850 : 1 3407,8 : 1 681,6 : 1 3407,8 : 1
Factor +- 10%   384,6 132,9 211,8 211,8 675,8 1269,2 346,0 219,0 755,7 220,0 1.102,1 146,1 730,5
Base valve flange ISO 5210   F - 25 -30- 35- 40 - 48 F - 25 -30 - 35 - 40 - 48 F 40 - 48 F 40 - 48 F 40 - 48 F 40 - 48
Drive bush type   DB50 DB50 - - - -
Valve stem dia. (max.) to drive bush  мм 140,0 140,0 - - - -
Valve stem dia. (max.)   mm. мм 180,0 180,0 241,0 241,0 241,0 241,0
Valve satem lenghts  (max.)  mm. мм 250,0 250,0 343,0 343,0 343,0 343,0
Weight кг. 307/312 307/312 307/312 307/312 315 315 307/312 307/312 315 786/797 786/797 786/797 786/797
valve output torque
Input torque from actuator Nm 30 Нм 11538 3987 6354 6354 20274 38076 10380 6570 22671 6600 33060 4383 102234
60 Нм 23076 7974 12708 12708 40548 - 20760 13148 45342 13200 66120 8766 204468
120 Нм 46152 15948 25416 25416 - - 41520 26288 - 26400 132240 17532 -
160 Нм - 33225 - - - - 35040 - 55000 - 36525 -
200 Нм - - - - - - - 43800 - 110000 - 73050
closing time for 90° degrees
Actuator speed in revolutions per minute 10 с. 1830 491 890 1011 3114 6404 1830 1011 3539 1275 4089 1022 5112
16 с. 1144 307 556 632 1946 4002 1144 632 2212 797 2556 639 3195
22 с. 832 223 404 460 1416 2911 832 460 1609 580 1859 465 2324
32 c. 572 153 278 316 973 2001 572 316 1106 398 1278 320 1597
45 c. 407 109 198 225 692 1423 407 225 786 283 909 227 1136
63 c. 290 78 141 160 494 1017 290 160 562 202 649 162 811
90 c. 203 55 99 112 346 712 203 112 393 142 454 114 568
125 c. 146 39 71 81 249 512 146 81 283 102 327 82 409
180 c. 102 27 49 56 173 356 102 56 197 71 227 57 284

Additional spur gear “IS 3,5”

For „MF” o „ MF – IS“ series valve actuators is designed special spur gear “ IS 3,5”. This spur gear will reduce input torques such, that every requirement regarding input torque and closing time could be meet. Spur gear “IS 3,5” is face gear with ration 3,5 : 1 and efficiency factor cca 3,3.

Spur gear “IS 3,5” is equipped on both ends with F10 mounting flanges according ISO, which allows to mount this gearbox to every type of valve operator with F10 input flange only with screws and nuts. This could be done everywhere, not only in production company.

Worm gearboxes for modulating regime:

Worm gearboxes for modulating regime are produced on the base of M - F or MFseries gearboxes and have the same dimensional and torque parameters including base flanges and shaft drilling dimensions. They could be with electric or hydraulic modulating actuators which are directly connected with base gearbox. Never use additional spur gears! Gearboxes for modulating regime are marked similar like gearboxes of M – F or MF series. Only behind letter in size specification is added letter “ O”. for instance MOF40, MOCF72, MOFF36………….MOLF60. Letter “O” means that quadrant is made from special Sulphuric bronze with long life time and small amortization. Worm of this gearboxes is also from special steel which forced long time sliding friction and by this way long life of all gearbox. Life time of this gearbox is designed to make 5,000.000 starts, that means impulses from actuator. Expression cycle is not used because during one working cycle could be several correction starts like to position open nor to position close. Gearbox corresponds to working regime from S1 to S4. Maximal number of starts during one hour is 1.200.

Gearboxes with raised positron indicator

Gearboxes with dosed positron indicator are use din CASE when valve shaft is Langer then allowed height for selected type of gearbox. Dosed positron indicator could compensate lengths to 45 mm up standard height allowed for selected gearbox. And are use data gearbox series M – F, M, MF, MF-IS.

Dosed positron indicators are from cast iron, steel or plastic depends on lengths and gearbox type.

Gearboxes with switched input shaft about 90°:

M – F, MF, MF-IS series gearboxes could be equipped with additional bevel gear AP1 which could turn direction of input shaft about 90° from level of wormshaft. These combinations are used for buried service or for operating valve in not standard height.