bennypass.com - Drive Coupling

Actuator Drive Couplings

Mechanical Data
Actuator size IQ, IQS, IQD, IQM		10	20	35	40	(40)¹	91	95
		12	25		70	(70)¹
		18			(90)¹	90
Flange Size	ISO5210	F10	F14	F16	F25	F30	F25	F30
Flange Size	MSS SP-102	FA10	FA14	FA16	FA25	FA30	FA25	FA30
Approximate weight2	Kg	31	54	75	145	160	150	160
Approximate weight2	lbs	68	119	165	320	353	331	353
Group “A” Couplings – Torque and Thrust
Thrust rating	kN	31	54	75	145	160	150	160
Thrust rating	lbf	68	119	165	320	353	331	353
Aluminium Bronze drive couplings supplied pilot bored for machining - Maximum stem acceptance diameter:
A (Z3)3 Rising	mm	32	51	67	73	83	N/A	83
A (Z3)3 Rising	inch	1^1/4	2	2^5/8	2^7/8	3^1/4	N/A	3^1/4
A (Z3)3 Non-Rising	mm	26	38	51	57	73	N/A	73
A (Z3)3 Non-Rising	inch	1	1^1/2	2	2^1/4	2^7/8	N/A	2^7/8
Pilot Bore⁴	mm	15	20	25	33	38	N/A	38
Group “B” Couplings – Non-Thrust Steel drive couplings - Maximum stem acceptance diameter:
B1 Fixed Bore	mm	42	60	80	100	120	100	N/A
B3 Fixed Bore	mm	20	30	40	50	50	50	N/A
B4 (max)	mm	20	32	44	60	60	60	N/A
B4 (max)	inch	3/4	1^1/4	1^3/4	2^1/4	2^1/4	2^1/4	N/A
Handwheels: IQ, IQS, IQD, IQM, IQML, IQL
Actuator size	10,12,18	20	25	35	40	70,90,91	95
Standard ratio	1:1	1:1	13.3:1⁵	22.25:1	15:1	30:1	45:1
Option ratio	5:1	13.3:1	1:1⁶	N/A	30:1	45:1	30:1⁶

Notes:

IQ40 and IQ70 have a F25 base fitted as standard. If specified a F30 or FA30 can be fitted as an option. IQ90 B3 and B4 couplings are supplied with an F25/FA25 base only.
Approximate net weights of standard build actuators. Actual weight will be dependent on specification and options fitted.
Rotork standard “Z3” option is extended below baseline allowing additional reach. Refer the details below (Actuator Drive Coupling).
Solid coupling option available on request.
IQM25 and IQML25 standard ratio is 1:1.
Rimpull does not meet the requirements of EN12570. May be used for lower torque applications or where higher handwheel forces are acceptable.

Actuator Drive Couplings

The IQ range features a removable base and coupling for all sizes. Flanges and couplings comply with ISO 5210 or MSS SP-102. Other base interfaces are available – apply to Rotork for details or contact to us

Thrust Bearings

Type ‘A’ and ‘Z3’ couplings include a fully sealed and lubricated-for-life thrust bearing. The thrust bases are designed to retain all the developed valve thrust reaction forces without any thrust load being transmitted to the actuator gearcase.

Drive Couplings

The removable drive bushes are supplied blank or pilot bored for machining to suit valve stem.

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