S008 Series 1/4 Turn Gearbox

This series consists of 15 models varying from 42:1 to 3525:1 in terms of gear ratio and from 720NM to 150000NM in terms of torque.
The torque difference between every two adjacent models is small, helping to save a lot of costs when customers select a specific product.

It is suitable for use on 90° rotary butterfly valves, ball valves and plug valves.

Connect the bottom flange of the gear operator to the upper flange of the valve and slide the valve shaft into the hole on the worm gear. Tighten the flange bolt. The valve can be closed by turning the hand-wheel clockwise and opened by turning the hand-wheel counterclockwise. On the upper face of the gear operator, a position indicator and a position marking are mounted, through which the position of switch can be directly observed. The gear operator is also equipped with a mechanical limit screw, which can be adjusted and function to limit the position at the switch extreme position.

S008 Series Technical Parameter

Model	Ratio	Rating Input (Nm)	Rating Output (Nm)	Efficiency (%)	M.A. (±10%)
S007	42:1	80	720	21	9.0
S008	50:1	110	1200	22	10.9
S108	72:1	130	2000	21	15.4
S158	70:1	150	2500	24	16.7
S208	68:1	210	3300	23	15.7
S218	78:1	206	4475	28	21.7
S238	175:1	170	6250	21	36.8
S308	275:1	150	9800	24	65.3
S358	532:1	170	18000	20	105.9
S408	700:1	190	32000	24	168.4
S448	1233:1	165	42000	21	254.5
S508	1254:1	190	60000	25	315.8
S608	1855:1	190	88000	23	421.1
S708	2292:1	190	100000	23	526.3
S808	3525:1	190	150000	22	789.5

Product Features

Ductile iron housing
Protected steel input shaft
15 models up to 150000 Nm output
Rugged construction
Ductile iron worm gear
NBR sealing materials
Suitable for -20°C ~ 120°C working conditions
Stroke: 0 – 90° (± 5° adjustable)
Designed with a lock mechanism

Customization

IP68 grade protection
Aluminum-bronze worm gear
Stainless steel input shaft
Limit switches
Low temperature to -46°C
Interlock safety system

Outline Dimensions Table

Model	ΦD	Flange	dmax	B	t	h	H	C	E	F	G	J	K	L	Φ
S007	Φ150	F10	Φ38	10	41.3	39	82	91.5		78.8	241	164	198.5	176	Φ465
	Φ150	F12	Φ38	10	41.3	39	82	91.5		78.8	241	164	198.5	176	Φ465
S008	Φ150	F10	Φ45	14	48.8	41.5	77.5	82.5		244	167	210	184		Φ465
	Φ175	F14	Φ45	14	48.8	41.5	82.5	91.5		244	167	210	184		Φ465
S108	Φ210	F14	Φ60	18	58.3	51	80	95.5		277	187	233	212		Φ600
	Φ210	F16	Φ60	18	58.3	51	80	95.5		277	187	233	212		Φ600
S158	Φ210	☆F14	Φ60	18	64.4	51	100	109.5		315	197	275.5	262		Φ600
	Φ210	F16	Φ60	18	64.4	51	100	109.5		315	197	275.5	262		Φ600
S208	Φ210	☆F16	Φ85	22	90.4	59.5	100.5	111.5		396.5	191.5	298	281		Φ750
	Φ300	F25	Φ85	22	90.4	59.5	100.5	111.5		396.5	191.5	298	281		Φ750
S218	Φ210	F14	Φ85	22	90.4	59.5	105	111.5		410	205	312.75	296.75		Φ750
	Φ300	F25	Φ85	22	90.4	59.5	105	111.5		410	205	312.75	296.75		Φ750
S238	Φ300	☆F14	Φ83	22	88.4	61	128	142	194.5	152.4	501	319	330	343	Φ600
		F16
		F25
S308	Φ340	☆F16	Φ100	28	106.4	74.5	151	165	229.5	173.25	544	339	413.5	391.5	Φ750
		F25
		F30