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The rotary valve actuator is an essential and indispensable component in the industrial sector, widely used in various fluid control systems. Its primary function is to precisely control the opening and closing of valves via the actuator, enabling seamless fluid flow control as well as fine-tuned flow regulation. This article will provide a detailed overview of the technical features, operational principles, and practical applications of rotary valve actuators.

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Type Type	Parameters Paragraph. Model Mode!	Technical Parameters								Standard Flange Connection Size Base Part					Standard Flange External Dimensions							Handwheel Hand Wheel
		Standard configuration Flange Standard Flange accS0521	Optional Flange Optional Mounting acc150521	Optional Speed ratio Optional Ratio	Input Torque Input Nm	Output Torque bupi Nm	Mechanical Efficiency MA. ±10%	Maximum Valve stem Max. Bore Day. mm	Approximately Weight Weight Kg	D1	P.C.D		D3	HO	H1	H2	K	K3	L2	PD	Key	Handwheel Hand Wheel
		Standard configuration Flange Standard Flange accS0521	Optional Flange Optional Mounting acc150521	Optional Speed ratio Optional Ratio	Input Torque Input Nm	Output Torque bupi Nm	Mechanical Efficiency MA. ±10%	Maximum Valve stem Max. Bore Day. mm	Approximately Weight Weight Kg	D1	D2	N-H-DP	D3	HO	H1	H2	K	K3	L2	PD	Key	M
A	BD80	F14	F104F12	501	126	1800	14.3	50	17	100	140	4-M16-24	175	3	80	217	101	300	153	21	6	400
	BD100	F16	F12F14	54:1	156	2500	16	60	27	130	165	4-M20-30	210	3	100	263	112	346	201	28	8	500
	BD125	F20	F18-F25	71:1	167	3500	21	70	39	140	205	8-M16-24	250	3	125	316	117	398	218	28	8	600
	BD140	F25	F16	661	237	4500	19	90	48	200	254	8-M16-24	300	4	140	368	133	430	250	32	10	700
B	BD100+M23	F16	F12F14	130:1	100	3300	38	60	31	130	165	4-M20-30	210	3	100	284	112	362	233	21	6	450
	BD125+M23	F20	F16-F25	172:1	115	5800	50	70	43	140	205	8-M16-24	250	3	125	336	117	380	250	21	6	500
	BD140+M24	F25	F16	225:1	135	8500	63	90	63	200	254	8-M16-24	300	4	140	397	133	438	238	21	6	600
	BD160+M25	F30	F25	318:1	120	11000	92	105	87	230	298	8-M20-30	350	4	160	421	153	465	285	21	6	600
C	BD140+M30	F25	F16	500:1	70	9000	130	90	75	200	254	8-M16-24	300	4	140	405	133	450	290	28	8	500
	BD160+M31	F30	F25	383:1	140	14000	103	105	110	230	298	8-M20-30	350	4	160	459	153	562	382	28	8	600
	BD160+M31	F30	F25	519:1	100	14000	140	105	110	230	298	8-M20-30	350	4	160	459	153	562	382	28	8	600
	BD180+M31	F30	F25	433:1	165	18000	108	105	136	230	298	8-M20-30	350	4	180	494	163	569	390	28	8	600
	BD180+M31	F30	F25	588:1	122	18000	147	105	136	230	298	8-M20-30	350	4	180	494	163	569	390	28	8	600
	BD200+M32	F35	F25-F30	581:1	164	25000	153	120	169	260	356	8-M30-45	415	4	200	552	189	589	409	28	8	600
	BD200+M32	F35	F25-F30	784:1	122	25000	205	120	169	260	356	8-M30-45	415	4	200	552	189	589	409	28	8	600
	BD225+M32	F35	F25-F30	666:1	205	36000	176	140	196	260	356	8-M30-45	415	5	225	619	195	604	422	28	8	700
	BD225+M32	F35	F25-F30	896:1	153	36000	236	140	196	260	356	8-M30-45	415	5	225	619	195	604	422	28	8	700
	BD250+M33	F40	F304F35	856:1	210	48000	229	165	264	300	406	8-M36-54	475	5	250	669	206	641	461	28	8	700
	BD250+M33	F40	F304F35	1287	140	48000	344	165	264	300	406	8-M36-54	475	5	250	669	206	641	461	28	8	700
	BD280+M33	F40	F304F35	969:1	245	60000	247	165	300	300	406	8-M36-54	475	5	280	729	213	701	481	28	8	800
	BD280+M33	F40	F304F35	1457:1	162	60000	372	165	300	300	406	8-M36-54	475	5	280	729	213	701	481	28	8	800
	BD315+M34	F48	F35-F40	1278:1	236	80080	339	190	490	370	483	12-M36-54	560	5	315	835	246	776	556	45	14	800
	BD315+M34	F48	F35-F40	2044:1	148	80000	542	190	490	370	483	12-M36-54	560	5	315	835	246	776	556	45	14	800
	BD355+M34	F48	F35-F40	1447:1	275	100000	368	190	535	370	483	12-M36-54	560	5	355	910	254	801	581	45	14	900
	BD355+M34	F48	F35-F40	2314:1	170	100000	589	190	535	370	483	12-M36-54	560	5	355	910	254	801	581	45	14	900
	BD400+V9	F60	F40-F48	1395:1	430	150000	351	220	785	470	603	20-M36-54	686	5	400	1002	290	844	624	45	14	900
D	BD225+M32+1S04	F35	F25-F30	1752:1	92	36000	393	140	210	260	356	8-M30-45	415	5	225	619	195	681	518	28	8	600
	BD250+M33+1S04	F40	F30-F3	2251:	95	48000	510	165	277	300	406	8-M36-54	475	5	250	669	206	719	528	28	8	600
	BD280+M33+1S04	F40	F30-F35	2548:1	110	60000	552	165	313	300	406	8-M36-54	475	5	280	729	213	739	558	28	8	600
	BD315+M34+1S04	F48	F35-F40	3361:1	106	80000	756	190	503	370	483	12-M36-54	560	5	315	835	246	832	632	28	8	600
	BD355 + M34 + 1S04	F48	F35-F40	3806	117	00000	858	190	548	370	483	12-M36-54	560	5	355	910	254	857	657	28	8	700
	BD400+V9+1S05	F60	F40-F48	4185:1	170	150000	892	220	805	470	603	20-M36-54	686	5	410	1002	290	948	718	28	8	800

Rotary Valve Actuator: Technical Analysis and Application Overview

I. Technical Features

The rotary valve actuator boasts several key technical features, including high-precision control, highly efficient operation, and exceptional safety and reliability. Among these, high-precision control stands out as one of its core attributes, enabling accurate valve opening and closing to maintain stable operation of the fluid system. Additionally, the device incorporates advanced transmission technology, ensuring efficient performance while significantly reducing energy consumption. Meanwhile, its robust safety and reliability features have made it widely adopted, effectively mitigating potential hazards such as leaks.

2. Operating Principle

The working principle of the rotary valve actuator relies primarily on the coordinated operation of components such as the electric motor, gearbox, and transmission mechanism. When the motor starts, the gearbox reduces the rotational speed while simultaneously increasing torque. This mechanical power is then transmitted via the transmission system to the valve, enabling it to open and close. Throughout this process, sensors continuously monitor the valve's position and operational status, allowing the control system to maintain precise regulation.

3. Application Status

Rotary valve actuators are widely used in industrial sectors such as oil, chemical, power, and metallurgy. In the oil and chemical industries, these devices control a variety of fluid media, including gases, liquids, and steam. In the power industry, rotary valve actuators manage fluid systems in equipment like boilers and generator sets. Additionally, they find extensive applications in other industries, including metallurgy and water treatment.

IV. Conclusion

Overall, rotary valve actuators are indispensable and critical components in modern industrial applications. Their key features—such as high-precision control, highly efficient operation, and exceptional safety and reliability—have enabled these devices to be widely adopted across various fluid control systems. As industrial technology continues to advance, rotary valve actuators will undergo continuous innovation and upgrades, further contributing to the growth and evolution of the industrial sector.

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