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M SERIES VALVE ACTUATORS

The cast iron construction and rugged design of the Mastergear ‘M’ series manual valve actuators has been engineered to meet the arduous requirements demanded of industrial enviromnents. Throuhg corrosion resistant treatment of bare metal surfaces, a grey epoxy paint finish and the use of lip seals with multiple sealing surfaces, the ‘M’ range is sealed to IP 67 and achieves exceptional durability. Models M07 to M 16 use high perfomance axial needle roller bearings, which combined with a one piece input wormshaft, maximises the available mechanical advantage and overall unit efficinency.

Features & general specifications:

Sealed to IP 67 90° + 5° (adjustable) travel
· Capability to withstand overload to twice maximum output torque rating
Maintenance Free To 203.400 Nm output torque
· Unrivalled versatility for direct fixing to valve
Temperature ranges
- 40°C +80°C - SL039
- 60°C +60°C - SL020
+20 - +200 °C - SLO21
- 60°C +60°C - SL120
Cast Iron Enclosure 13 frame sizes
Self Lockong/High Efficiency Stainless steel execution
 

* M07 have always equipped integral drivebush DB1.

General description:

Large raised indicator of non-corrosive material for remote visibility. Rugged cast iron construction, sealed to IP 67. Exposed parts corrosion resistant or protected with grey epoxy paint.
Adjustable stop screws sealed with protective caps.

 

 

‘O’ ring sealing idnicator to cover face.
On centre line position indication. Large mounting flange to accept up to 3 sizes of ISO sealed base tappings on each unit size, plus other existing industry stds.Large output drive bore for direct customisation to suit valve stem or with separate removable drive bush.
High efficiency gearing & bearing systems to reduce input effort & handwheel size. Input shaft lip seal with multiple sealing surfaces.

 

 

Input shaft protected against corrosion.
Grease lubricated for life.     
Item

Description

SLO39
-40°C / +80°C
Standard

SLO20
-60°C / +80°C
Not shock proof

SL120
-60°C / +80°
Shock proof

1 Cover

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 Nitempered steel Nitempered steel
6 Wormshaft bearings Sintered iron copper SteelSteel
7 Indicator cap Injection moulded plastic

Grey cast iron

Grey cast iron

8 Nameplate Self adhesive aluminium

Self adhesive aluminum

Self adhesive aluminum

9 Cover screws Steel

Stainless steel

Stainless steel

10 Stopscrews Steel

Stainless steel

Stainless steel

11 LocknutSteel

Stainless steel

Stainless steel

12 Bearing thrust washers  Needle thrust washer Needle thrust washerNeedle thrust washer
13 Thrust bearing Needle thrust bearing Needle thrust bearingNeedle thrust bearing
14 Indicator O-ring NBR

PTFE

PTFE

15 Quadrant O-ring

NBR

PTFE

PTFE

16 Dowels  Hardened & ground steel Hardened & ground steelHardened & ground steel
17 Locknut protection caps

Low density polyethylene

Low density polyethylene

Low density polyethylene

Performance specification and dimensions part 1:

Gearbox type   M07 M10 M12 M14 M15 M16 M20
Maximal outpup torque for mode 1 - 2.500 working cycles Nm 250 500 1 000 1 800 3 400 4 500 6600
Maximal outpup torque for mode 2 - 1.000 working cycles Nm 300 600 1200 2 200 4100 5400 8000
Factor + - 10%   11.00 11.0 11,3   16,2   20,5   26,5   57,0  
Maximal input torque mode 1 * Nm 22,7 45.5 88.5 111.0 166,0 170,0 115,0
Maximal input torque mode 2 * Nm 27,2 54.54 106,0 135.8 200,0 203,7 140,0
Ratio   40 : 1 40 : 1 42 : 1 60 : 1 68 : 1 88 : 1 183 : 1
Turns to close   10,0 10,0 10,5 15,0 17,0 22,0 45,8
Base valve flange ISO 5210   F05, F07 F07, F10 F10, F12, F14 F12, F14, F16 F16, F20, F25 F16, F20, F25
Drive bush type mm DB1 DB1 DB4 DB7 DB15 DB16 DB20
Valve stem dia. (max.)  to drive bush mm 25,0 25,0 32,0 45,0 65,0 70,0 70,0
Valve stem dia. (max.)   mm.  mm 25,0 32,0 45,0 65,0 80,0 92,0 92,0
Valve satem lenghts  (max.)  mm. mm 51,0 57,0 72,0 81,0 92,0 113,0 115,0
Extended input shaft mm N/A 205 240 260 325 350 328
Hand wheel pin mm 4 5 6 6 8 8 6
hand wheel shaft diameter  mm 14.98 14.98 19.98 19.98 29.98 29.98 19.98
14.94 14.94 19.94 19.94 29.94 29.94 19.94
Weight kg 2,6 4,2 8,2 14,5 28,0 41,2 52,0
Recommended hand wheel   SR5 SR5,SR8 SR10,SR12 SR10,SR12 SR14, R18 R24 SR14 R18,R24 R18,R24, R30, R36 R18,R24, R30, R36 R18,R24, R30

Performance specification and dimensions part 2:

Gearbox type   M30 M40 M50 М55 M60 M70
Maximal outpup torque for mode 1 - 2.500 working cycles Nm 10 800 20 000 41 670 63 000 112 553 169 477
Maximal outpup torque for mode 2 - 1.000 working cycles Nm 13 000 24 000 50 000 68 000 135 035 203 400
Factor + - 10%   99.0 188,7 384,6 219.0 730,5 657,5
Maximal input torque mode 1 * Nm 109,0 106,0 108,3 219,4 135,0 250,9
Maximal input torque mode 2 * Nm 131,3 127,2 130,0 310,5 154,1 309,4
Ratio   309,1:1 615 : 1 1219,8:1 694.6 : 1 3407,8 : 1 3407,8 : 1
Turns to close   77,3 153,7 304,9 173,7 852,0 852,0
Base valve flange ISO 5210   F20, F25, F30 F25, F30, F35, F40 F25, F30, F35, F40, F48 F40, F48 F40, F48
Drive bush type   DB30 DB40 DB50 DB50 -- --
Valve stem dia. (max.)  to drive bush mm 90,0 130,0 140,0 140,0 -- --
Valve stem dia. (max.)   mm.  mm 124,0 165,0 180,0 180,0 241,0 241,0
Valve satem lenghts  (max.)  mm. mm 144,0   203,0   250,0   250,0   343,0   343,0  
Extended input shaft mm 328 -- -- -- -- --
Hand wheel pin mm 6 6 6 6 8 8
hand wheel shaft diameter  mm 19.98 19.98 19.98 19.98 29.98 29.98
19.94 19.94 19.94 19.94 29.94 29.94
Weight kg 84,0 181,5 294,3 294,3 796,0 796,0
Recommended hand wheel   R18,R24, R30 R18, R24, R30 R18, R24, R30 R18, R24, R30 R30, R36 R30, R36

Special execution of gearboxes:

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.
 RIM EFFORT N
HANDWHEEL DIA
 Output torque Nm

Handwheel selection procedure

  1. For optimum performance handwheels should be selected from the green shaded area.
  2. Determine the required input torque from 3 below.
  3. Input torque = required output torque / mechanical advantage.
  4. Determine the maximum allowable handwheel rim effort for your application.
  5. Select handwheel rim diamter.