SE SERIES VALVE ACTUATORS

The Mastergear ‘SE’ series range of manual actuators combines state of the art production technology with a cast iron and pressed steel construction to produce the lowest cost units in their class.

Designed to meet the requirements demanded of low cost installations, the enclosure is sealed to IP65 and external metal surfaces are completely corrosion protected to suit weatherproof environments. Creative design engineering also ensures the range provides the highest ‘torque to weight’ ratio in its class whilst still accommodating the maximum ISO base fixing centers per frame size.

The range has been conceived to offer greatest stocking flexibility by incorporating the Mastergear splined drive bush, already established within the valve industry, which combined with multiple base fixings per unit enable Mastergear to offer market leading delivery times, or for customers to reduce stocking costs.

Features & general specifications:

Sealed to IP65
Maintenance Free
Facility to lock Handwheel
Interchangeable Output Drive Bush
Self Locking Gearing
Cast Iron/Steel Enclosure
90° Travel with + 5° adjustment in closed position
3 Frame Sizes
Versatility for fixing to Valve
-30°C to +80°C temperature range
Up to 1000 Nm output torque

Item	Component	Material description	Specification
1	Cover	Pressed stell	FE PO5
2	Gearcase	Grey cast iron	BS 1452 Grade 250
3	Oilseal	Injection moulded plastic	Hytrel 5526
4	Quadrant	Sintered copper steel	FC0208-50
5	Wormshaft	Hardened carbon steel	BS 970 212M36
6	Bearing Bush	Sintered iron	B-439 – 83/SINT – B10
7	Thrust Bearing	Hardened pressed steel	FE PO1
8	Indicator Cap	Injection moulded plastic	Hytrel 6356
9	Cover Screw	Hardened alloy steel	DIN 7500
10	Stopscrew	High tensile steel	BBS 3692
11	Locknut	High tensile steel	BS 3692
12	Drive Bush	Sintered steel	PC0205-40

Performance specification and dimensions

Actuator Type	SE07	SE10	SE12
Max Output Torque (Nm) for 2.500 cycles	200	500	1000
Mechanical Advantage	7	7	8
Input Torque (Nm)	28.6	71.5	125
Ratio	40:1	40:1	42:1
Turns to Close	10	10	10.5
Valve Flange Mounting ISO 5211	F05, F07	F07, F10, F12	F10, F12, F14
A Max Valve Stem Diameter	25	30.5	45
B Max Valve Stem Height	50	57	72
C	38.2	58.5	65.5
D	7	9	10
E	38.5	52.0	66.7
F	33	43	50
G	38.2	58.5	71
H	57	65	80
J	26.5	30	38
K	42	58	72
L	120	205	240
M	64.2	86.4	108.3
N (Adjusted for 90° Turn)	46	57	72
P	4	5	6
R	78	107	134
S	20	25	32
T	0.8	0.8	0.8
U	11.94/11.98	14.94/14.98	19.94/19.98
V	51	66	83
W	42.5	55	67.5
X	27.5	33	40.7
Y (separation to border cluth)	36	36	49
Unit Weight (Kg)	1.6	3.7	6.6
Handwheel see over for dimensions	SR5	SR10	R14, R18

Valve coupling dimensions (mm), machining and weight:

Unit	øa max.	øa min.	øb max.	h max.	d	e	f max..	g	øc	Unit weight
9801	28,6	9,5	25,0	60,9	35,1	19,4	M12	11,0	38,0	0,23 kg
9804	35,0	12,7	32,0	57,0	35,1	19,4	M12	12,0	47,5	0,35 kg
9807	50,0	15,9	45,5	64,0	47,7	21,6	M16	14,0	66,6	0,95 kg