Pneumatic Actuator

Scotch Yoke Actuator

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K Series Skotch Yoke Atuators Have Functional Modules Such As Pneumatic Actuator, Hydraulic Power, Sprin Power And Manual Control. All The Functional Modules Are Subject To Inter-Combination And Exchange, So That User Can Choose Various Modules According To Funtional Requirements Of Valve Process Control Procedure. Tha Modules Can Be Purchased Separately, Reducing Inventory Of Spare Parts.

SAFETY :

K-Series Pre-Assembled Spring Module Adopts The Latest Manufacturing Process. It Preassembles A Spring In The Modules. Eliminating The Spring Of Incidental Release, Removing Potential Risks, Preventing Malfunction And Faciliating Desassmbly And Installation.
Compact Type :

K-Series Actuators Integrate And Optimize The Center-Of-Gravity Position, Making The Appearance More Reasonable And Light. Compared With Other Actuators With The Same Torque, It Is Lighter And Need Less Installation Space.
Water-Resistant Protection :

Complying With Ip66 And Ip67 Protection Standards, All Parts And Components Are Equipped With O Rings At Their Joints, Which Can Effectively Prevent Water Entering The Case. It Is Able To Withstand Short-Term Or Long Term Immersion In Water, So That Users Can Make A Choice According To Requirments.
Wearing And Lubrication :

The Position Where The Piston Rod And Piston Slide And Rub Is Furnished With Self-Lubricating Bearing. The Piston Rod Is Plated With Hard Chrome And Is Provided With Fine Grinding And Finishing. The Cylinder Inner Wall Is Coated With Fine Grinding By Hard Chromium Plating. With Such Outstanding To The Valve, Which Reduces Friction And Effectively Improves The Utilization Efficiency Of Springs.
Corrosion Resistance :

K-Series Actuators, With Internal Protection And External Coating, Are Reliably Application To All Kinds Of Environments And Are In Compliance With Relevant National Standards.
Standardization :

The Connection Size Of The Top Drive Shafts Of All K-Series Models Is The Same And Is In Compliance With Namur Standard, So That It Is Easy To Install Such Fittings As Position Switch, Locator. Valve Installation As For The Installation Of K-Series Actuators And Valves, Flanges And Shaft Key Connection, The Size Complies With The Torque Range Specified Iso 5211 Standards.

K Series Double Acting Pneumatic Actuator Table (N.M.)

MODEL	SPRING TORQUE	AIR SUPPLY PRESSURE
		3	3.5	4	4.5	5	5.5	6	7	8
K1-P200-DA	OPEN/CLOSED	823	960	1097	1234	1372	1509	1646	1920	2195
K1-P200-DA	MIN	434	507	579	652	724	796	869	1014	1158
K2-P250-DA	OPEN/CLOSED	1576	1839	2101	2364	2627	2889	3152	3677	4203
K2-P250-DA	MIN	832	971	1109	1248	1386	1525	1664	1941	2218
K3-P300-DA	OPEN/CLOSED	2769	3231	3692	4154	4615	5077	5539	6462	7385
K3-P300-DA	MIN	1462	1705	1949	2193	2436	2680	2923	3411	3898
K4-P350-DA	OPEN/CLOSED	4533	5288	6044	6799	7555	8310	9066	10577	12088
K4-P350-DA	MIN	2393	2791	3190	3589	3988	4386	4785	5583	6380
K5-P400-DA	OPEN/CLOSED	5949	6941	7932	8924	9916	10907	11899	13882	15865
K5-P400-DA	MIN	3140	3664	4187	4710	5234	5757	6281	7327	8374
K6-P500-DA	OPEN/CLOSED	11468	13379	15291	17202	19113	21025	22936	26759	30581
K6-P500-DA	MIN	6053	7062	8071	9080	10089	11098	12107	14124	16142
K7-P600-DA	OPEN/CLOSED	21006	24507	28008	31509	35010	38512	42013	49015	56017
K7-P600-DA	MIN	11088	12936	14784	16632	18480	20328	22176	25872	29568
K8-P700-DA	OPEN/CLOSED	28646	33419	38193	42967	47742	52516	57290	66838	76386
K8-P700-DA	MIN	15120	17640	20160	22680	25200	27720	30240	35280	40320

K SERIES SPRING RETURN PNEUMATIC ACTUATOR TORQUE TABLE (N.M.)

MODEL	SPRING TORQUE	AIR SUPPLY PRESSURE
MODEL	SPRING TORQUE	3	3.5	4	4.5	5	5.5	6	7	8
K1-P200-SR2	OPEN/CLOSED	287	424	561	699	836	973	1110	1384	698
K1-P200-SR2	MIN	110	182	254	327	399	472	544	689	325
K1-P200-SR2	CLOSE	125	262	399	536	673	840	948	1222	536
K2-P250-SR2	OPEN/CLOSED	548	811	1074	1336	1599	1861	2124	2649	1339
K2-P250-SR2	MIN	209	348	486	625	764	902	1041	1318	623
K2-P250-SR2	CLOSE	237	499	762	1025	1287	1550	1813	2338	1028
K3-P300-SR2	OPEN/CLOSED	962	1424	1885	2347	2808	3270	3731	4654	2355
K3-P300-SR2	MIN	366	610	854	1097	1341	1585	1828	2315	1095
K3-P300-SR2	CLOSE	414	876	1337	1799	2261	2722	3184	4107	1807
K4-P350-SR2	OPEN/CLOSED	1574	2329	3085	3840	4595	5351	6106	7617	3856
K4-P350-SR2	MIN	599	998	1397	1795	2194	2593	2992	3789	1793
K4-P350-SR2	CLOSE	677	1432	2188	2943	3699	4454	5210	6721	2959
K5-P400-SR2	OPEN/CLOSED	2065	3056	4048	5040	6031	7023	8014	9997	5062
K5-P400-SR2	MIN	786	1309	1833	2356	2880	3403	3926	4973	2354
K5-P400-SR2	CLOSE	888	1879	2871	3862	4854	5845	6837	8820	3884
K6-P500-SR2	OPEN/CLOSED	3979	5890	7801	9713	11624	13535	15447	19269	9759
K6-P500-SR2	MIN	1514	2523	3532	4541	5550	6559	7568	9585	4539
K6-P500-SR2	CLOSE	1709	3621	5532	7443	9355	11266	13177	17000	7489
K7-P600-SR2	OPEN/CLOSED	7286	10788	14289	17790	21291	24792	28293	35295	17877
K7-P600-SR2	MIN	2773	4621	6469	8317	10165	12013	13861	17557	8315
K7-P600-SR2	CLOSE	3129	6630	10131	13632	17133	20634	24135	31137	13720
K8-P700-SR2	OPEN/CLOSED	9936	14710	19484	24258	29032	33806	38580	48129	24379
K8-P700-SR2	MIN	3781	6301	8821	11341	13861	16381	18901	23941	11339
K8-P700-SR2	CLOSE	4266	9040	13814	18588	23363	28137	32911	42459	18709

Kaw Series Double Acting Pneumatic Actuator Table (N.M.)

MODEL	SPRING TORQUE	AIR SUPPLY PRESSURE
MODEL	SPRING TORQUE	3	3.5	4	4.5	5	5.5	6	7	8
K1AW-P200-DA	OPEN/CLOSED	1646	1920	2195	2469	2743	3018	3292	3840	4389
K1AW-P200-DA	MIN	869	1014	1158	1303	1448	1593	1738	2027	2317
K2AW-P250-DA	OPEN/CLOSED	3152	3677	4203	4728	5253	5779	6304	7355	8405
K2AW-P250-DA	MIN	1664	1941	2218	2496	2773	3050	3327	3882	4437
K3AW-P300-DA	OPEN/CLOSED	5539	6462	7385	8308	9231	10154	11077	12923	14769
K3AW-P300-DA	MIN	2923	3411	3898	4385	4872	5360	5817	6821	7796
K4AW-P350-DA	OPEN/CLOSED	9066	10577	12088	13598	15109	16620	18131	21153	24175
K4AW-P350-DA	MIN	4785	5583	6380	7178	7975	8773	9570	11166	12761
K5AW-P400-DA	OPEN/CLOSED	11899	13882	15865	17848	19831	21814	23797	27764	31730
K5AW-P400-DA	MIN	6281	7327	8374	9421	10468	11514	12561	14655	16748
K6AW-P500-DA	OPEN/CLOSED	22936	26759	30581	34404	38227	42050	45872	53518	61163
K6AW-P500-DA	MIN	12107	14124	16142	18160	20178	22196	24213	28240	32284

PARTS AND MATERIAL :

NO.	PARTS	MATERIAL	NO.	PARTS	MATERIAL
1	BODY	DUCTILE CAST IRON	23	O RING	RUBBER
2	YORK	WCB	24	O RING	RUBBER
3	COVER	DUCTILE CAST IRON	25	O RING	RUBBER
4	PISTON ROD	CAST STEEL	26	GUIDE RING	COMPOSITE
5	PIN SHAFT	BEARING STEEL	27	LUBRICANT BEARING	COMPOSITE
6	ROLL SLEEVE	BEARING STEEL	28	LOCKING NUT	CARBON STEEL
7	OUTPUT SHAFT	CAST STEEL (CHROME PLATING)	29	DOUBLE STUD	CARBON STEEL
8	LUBRICANT BEARING	COMPOSITE	30	GASKET	CARBON STEEL
9	NUT	CAST STEEL	31	NUT	CARBON STEEL
10	ADJUST STUD	CAST STEEL	32	COMPRESSED SPRING	SPRING STEEL
11	HEXAGON STUD	CAST STEEL	33	SPRING STEEL	CARBON STEEL
12	DOUBLE STUD	CAST STEEL	34	SPRING SEAT	CARBON STEEL
13	NUT	CAST STEEL	35	WELDING FLANGE	CARBON STEEL
14	GUIDE ROD	CAST STEEL (CHROME PLATING)	36	SPRING SLEEVE	CARBON STEEL
15	SUPPORTER SLIDER	CAST STEEL	37	CAPTIVE NUT	CARBON STEEL
16	LUBRICANT BEARING	COMPOSITE	38	HYDRAULIC CYLINDER	CAST STEEL (CHROME PLATING)
17	INSIDE END CAP	DUCTILE CAST IRON	39	PLUG	CAST STEEL (CHROME PLATING)
18	OUTSIDE END CAP	DUCTILE CAST IRON	40	HYDRAULIC FLANGE	CAST STEEL
19	CYLINDER	CAST STEEL (CHROME PLATING)	41	SEALING RING	RUBBER
20	PISTON	DUCTILE CAST IRON	42	GUIDE RING	COMPOSITE
21	PISTON O RING	RUBBER	43	HEXAGON STUD	CAST STEEL
22	END CAP O RING	RUBBER

K Series Double Acting / Spring Return Pneumatic Actuator Dimension.

MODEL	ISO5211	L(D)	L(S)	L1	L2	L3	H	H1	A	B	C	D
K1-P200	F10/F12	630	895	240	120	228	183	75	255	191	80X60	62.5
K2-P250	F14	812	1100	290	145	316	217	88	315	247	102	90
K3-P300	F16	917	1352	334	167	358	228	94.5	370	279	102	102.5
K4-P350	F25	1060	1518	390	195	403	265	108	420	355	102	150
K5-P400	F25	1060	1518	390	195	403	265	108	480	355	102	150
K6-P500	F30	1205	2270	476	238	565	308	130	600	430	102	175
K7-P600	F35	1580	2340	600	300	685	375	165	710	538	102	207.5
K8-P700	F35	1580	2340	600	300	685	375	165	830	538	102	207.5

MODEL	D1	E	F	n-G	I	J	M	N	P	Q	R	S	T	U
K1-P200	50	39.3	102/125	4-M10/M12	85	¼”	30	80	36	M6	76	M5	10	166
K2-P250	61.5	53.8	140	4-M16	100	½”	30	80	50	M6	95	M5	14	202
K3-P300	75	64.4	165	4-M20	130	½"	30	80	60	M6	118	M5	18	244
K4-P350	90	76.9	254	8-M16	200	½”	30	80	72	M6	145	M5	20	297
K5-P400	90	76.9	254	8-M16	200	¾”	30	80	72	M6	175	M5	20	402
K6-P500	110	127.4	298	8-M20	230	1”	30	80	120	M6	210	M5	32	480
K7-P600	140	170	356	8-M30	260	1”	30	80/130	160	M6	250	M5	40	530
K8-P700	140	170	356	8-M30	260	1.1/2”	30	80/130	160	M6	288	M5	40	560

Kaw Series Double Acting / Spring Return Pneumatic Actuator Dimension.

MODEL	ISO5211	L(2D)	L1	L2	L3	H	H1	A	B	C	D	D1
K1AW-P200	F10/F12	696	240	120	228	183	75	255	191	80X60	62.5	50
K2AW-P250	F14	922	290	145	316	217	88	315	247	102	90	61.5
K3AW-P300	F16	1050	334	167	358	228	94.5	370	279	102	102.5	75
K4AW-P350	F25	1196	390	195	403	265	108	420	355	102	150	90
K5AW-P400	F25	1196	390	195	403	265	108	480	355	102	150	90
K6AW-P500	F30	1476	476	238	500	308	130	610	430	102	175	110

MODEL	E	F	n-G	I	J	M	N	P	Q	R	S	T
K1AW-P200	39.3	102/125	4-M10/M12	85	¼”	30	80	36	M6	76	M5	10
K2AW-P250	53.8	140	4-M16	100	½”	30	80	50	M6	95	M5	14
K3AW-P300	64.4	165	4-M20	130	½"	30	80	60	M6	118	M5	18
K4AW-P350	76.9	254	8-M16	200	½”	30	80	72	M6	145	M5	20
K5AW-P400	76.9	254	8-M16	200	¾”	30	80	100	M6	175	M5	20
K6AW-P500	127.4	298	8-M20	230	1”	30	80	120	M6	220	M5	32

Design Feature :

Self Lubricating Bearing Of Piston Rod : Functioning As Lubrication And Guide, It Reduces The Friction And Increases The Conduction.
Fork Rolling Sleeve Structure : Two Rolling Sleeves Made Of Bearing Steel At The Top And The Bottom Hold The Fork And Slide To And Fro In The Groove, Changing The Linear Motion To Rotary Motion.
Connection Of Standard Valve : The Connection Size Of K-Series Valves Is In Compliance With Torque Range Specfied In The Standard Iso 5211.
Spring Module : Pre-Assembled Spring Module Removes The Spring Of Incidental Release, Eliminates Potential Risks And Avoid Maloperation.
Locking-Nut : Locking-Nut Can Prevent Spring Getting Loose Or Coming Off In Vibration.
Teflon Coating In The Cylinder Bore : With Hi-Tech New Coating Of Ptfe Material, It Treated With Special Techniques And Dried At High Temperature.
Piston Guide Ring : Pneumatic Fluirocarbon Guide Ring Made Up Of The Material Made From Teflon And Carbon Fiber Functions To Separate The Cylinder And Piston Motions.
Easily replaceable PTFE seats & packing.8. Self-Lubricating Bearing Of Drive Shaft : Two Self-Lubricating Bearings, Mounted At The Top And The Bottom, Functions To Support And Position, And Rotate And Rotate And Lubricate.
Connection Of Standard Accessories : The Interface Of All The Output Accessories Of K-Series Drive Shaft Is The Same And It Is Compliance With Namur Standard.
Stroke Adjustment Screw : K-Series Actuators Have A +-5% Stroke Control, So That It Can Fressly Make Adjustment Within The Stroke Of 80+ ~ 1000
Guide Rod Slipper : Models Above K6 Are Furnished With Such Slider. Supported By The Guide Rod, The Sliding Slipper Will Push The Fork To Rotate The Output Shaft To Run Steadily.
Exhaust-Air Monitor : As The Transmission Module Is Totally Sealed, A Special Exhause-Air Monitor Is Designed To Check Over Pressure Release Of Pneumatic Module And Sealing Leak, And Prevent Dust, Corrosive Atmosphere And Water Enering As Well.

Double Acting

MODEL	CYLINDER CAPACITY (L)	CYLINDER CAPACITY (L)	WORKING TIME (S)	WORKING TIME (S)	MAX. OPERATING PRESSURE (BAR)
MODEL	Inside	Outside	Open (Inside)	Close (Outside)	MAX. OPERATING PRESSURE (BAR)
K1-P200-DA	3.2	3.3	2.0	2.0	0.8
K2-P250-DA	8.0	8.5	2.5	2.5	0.8
K3-P300-DA	13.5	15.0	3.0	3.0	0.8
K4-P350-DA	21.5	24.0	4.0	4.0	0.8
K5-P400-DA	34.0	38.5	5.0	5.0	0.8
K6-P500-DA	69.5	77.0	7.0	7.0	0.8
K7-P600-DA	123.0	129.0	8.0	8.0	0.8
K8-P700-DA	207.0	214.5	10.0	10.0	0.8

Spring Acting

Double Acting

MODEL	CYLINDER CAPACITY (L)	CYLINDER CAPACITY (L)	WORKING TIME (S)	WORKING TIME (S)	MAX. OPERATING PRESSURE (BAR)
MODEL	Inside	Outside	Open (Inside)	Close (Outside)	MAX. OPERATING PRESSURE (BAR)
K1-P200-SR2	3.2	-	2.5	3.0	0.8
K2-P250-SR2	8.0	-	3.0	3.5	0.8
K3-P300-SR2	13.5	-	4.0	5.0	0.8
K4-P350-SR2	21.5	-	5.0	6.0	0.8
K5-P400-SR2	34.0	-	6.0	7.0	0.8
K6-P500-SR2	69.5	-	9.0	10.0	0.8
K7-P600-SR2	123.0	-	10.0	12.0	0.8
K8-P700-SR2	207.0	-	12.0	14.0	0.8

Air Consumption Is Dependent On Air Supply Pressure, Open Close Stroke, Volume And Motion Times, Which Is Calculated As Following : L/Min = Air Volume (Opening Volume + Closing Volume)*Air Supply Pressure (Kpa)+101.3/101.3*Motion Times (Min.)

Option : Manual Device
In many applications, the valve / actuator often need the hand wheel device. In the condition of loss of air pressure, we can use the hand wheel to manually open or close the valve. KST has a variety of optional hand wheel products to meet customer requirements, it includes open or closed mechanical hand wheel screw nut, the clutch type mechanical hand wheel gear reducer, hydraulic wheel and the storage system.