ZDHO and ZDRO electric ball valves (clamp type connection)

ZDHO and ZDRO electric ball valves (clamp type connection)

Electric ball valve is a type of valve that rotates 90 º around the axis perpendicular to the channel. It consists of a rotary angular stroke electronic electric actuator and an O-valve structure. It belongs to the high-performance regulating or switching valve category of rotary type, and receives input and output of current or voltage signals from industrial automation control (DCS, PLC system) instruments. It can achieve proportional adjustment or two position switch control of fluid medium in the process pipeline, thereby achieving automatic control of parameters such as flow rate, pressure, temperature, and liquid level of fluid medium.

1. Electric ball valves have low fluid resistance and are the ones with the smallest fluid resistance among all valve types. They are powered by AC220V, AC380V, or DC24V power supply voltage and can receive (4-20mA, 0-10mA, or 1-5VDC) current or voltage signals to control operation. By rotating the ball body 0-90 º with the torque output of angular stroke, they can complete the opening and closing action or adjustment action.

2. The core channel is flat and smooth, not easy to deposit media, and can be used for pipeline ball passing. Simple structure, light weight, and good sealing performance. Especially suitable for situations that require zero leakage rate.

3. Adopting HL type, 3810R type, and PSQ type angular stroke fully electronic electric actuators as the driving device for O-type ball valves, with an integrated mechanical and electrical structural design, it has functions such as internal servo operation, position feedback of opening signals, position indication, and manual operation. It has strong functionality, reliable performance, and simple wiring. It is powered by AC220V or AC380V power supply voltage and directly accepts unified standard signals (4-20mA DC, 0-10mA DC or 1-5V DC, 0-10V DC),

Transform this into a displacement corresponding to the input signal, and move it at an angular displacement (0-90 º) to change the rotational opening of the core. Therefore, a certain input signal corresponds to a certain position opening, achieving proportional adjustment action. (Two position switch type accepts AC220V or AC380V power supply voltage as power, achieves switch action through motor forward and reverse rotation, and simultaneously outputs switch valve position indication signal). It is a high-precision, high-performance, and high reliability product.

（a）．OFloating ball structure；Soft valve seat:Double slope elastic (polytetrafluoroethylene or polystyrene) valve seat sealing ring.

Hard valve seat:Metal (hard alloy steel) hard seal ring valve seat with cylindrical spring loading.

Effectively reducing the friction coefficient between the ball and the sealing ring, and decreasing the operating torque. When the medium pressure is low, the contact surface between the sealing ring and the sphere is small, so there is a large sealing pressure ratio to ensure reliable sealing. When the medium pressure is high, the contact area between the sealing ring and the sphere also increases accordingly, so the valve seat sealing ring can withstand a large medium thrust without damage, ensuring reliable sealing.

（b）. OFixed ball structure; Soft valve seat:Double slope spring loaded (polytetrafluoroethylene or polystyrene) elastic valve seat sealing ring.

Hard valve seat:A resilient movable metal (hard alloy steel) hard sealed valve seat preloaded with cylindrical or wave springs.

The design of the sealing pre tightening force is reasonable, and the sealing performance is reliable. Depending on the pressure, medium properties, and sealing requirements, the inlet sealing structure, outlet sealing structure, or inlet and outlet dual sealing structure can be selected. The ball is supported by two upper and lower bearings installed on the valve body, and its position is fixed. The sealing effect is achieved by the spring and medium pressure pushing the valve seat, so the valve seat will not bear excessive pressure, the valve seat seal is not easy to deform, the operating torque is light, and the service life is long.

Model	Output torque N.m	Action time S/90 º	power （W）	model	Output torque N.m	Action time S/90	Power (W)	model	Output torque N.m	Action time S/90	Power (W)
HL-5	50	10/30	10W/F	381RSA-02	20	8.5	50	PSQ51	50	23	24.2
HL-10	100	15/30	23W/F	381RSA-05	50	17		PSQ66	65	32	24.2
HL-20	200	10/15/30	40W/F	381RSB-10	100	18	150	PSQ76	75	60	25.3
HL-40	400	10/15/30	80W/F	381RSB-20	200	36		PSQ102	100	32	62.1
HL-50	500	10/15/30	90W/F	381RSC-30	300	24	220	PSQ202	200	28	93.0
HL-100	1000	50	100W/F	381RSC-50	500	42		PSQ502	500	43	120
HL-200	2000	100	100W/F	381RSC-60	600	48		PSQ702	700	43	120
				381RSD-100	1000	30	300	PSQ1202	1200	31/37	500
				381RSD-150	1500	38		PSQ2002	2000	93/112	500
				381RSD-200	2000	46
(Shielded wire for signal line) Protection level: IP65 with crank manual operation power supply:AC220V/AC380V/DC24V				(Shielded wire for signal line) Protection level: IP55 Explosion proof mark: Exd Ⅱ BT4 with crank manual operation, explosion-proof (381RX) type performance as above Power supply voltage: AC220V				(Shielded wire for signal line) Protection level: IP65 Operating power supply voltage with handwheel: AC220V

Note: Metal hard seal; Suitable for working conditions with high temperature, wear resistance, and various dust and solid particle media, it has good shear and self-cleaning functions.

Specification DN Opening	KV values at different opening degrees
	10 º	20 º	30 º	40 º	50 º	60 º	70 º	8 0 º	90 º
50	2	4	9	17	32	60	97	151	215
80	6	11	22	44	83	155	250	389	550
100	9	18	35	71	133	248	398	620	890
150	20	40	8/0	160	300	560	900	1400	2000
200	36	72	143	286	737	1002	1611	2506	3580
250	57	113	226	453	848	1582	2543	3955	5650
300	81	163	325	651	1220	2278	3661	5695	8100

OFloating ball structure with flange connection and external dimensions table

Nominal Diameter DN(mm)	Dimensions(mm)
	1.6MPa				2.5MPa				4.0MPa				6.4MPa
	L	D	D1	Z-фD	L	D	D1	Z-фD	L	D	D1	Z-фD	L	D	D1	Z-фD
15	130	95	65	4-14	130	95	65	4-14	130	130	65	4-14	140	105	75	4-14
20	140	105	75	4-14	140	105	75	4-14	140	150	75	4-14	152	125	90	4-18
25	150	115	85	4-14	150	115	85	4-14	150	160	85	4-14	180	135	100	4-18
32	165	135	100	4-18	165	135	100	4-18	180	180	100	4-18	200	150	110	4-23
40	180	145	110	4-18	180	145	110	4-18	200	200	110	4-18	220	165	125	4-23
50	200	160	125	4-18	200	160	125	4-18	220	230	125	4-18	250	175	135	4-23
65	220	180	145	4-18	220	180	145	8-18	250	290	145	8-18	280	200	160	8-23
80	250	195	160	8-18	250	195	160	8-18	280	310	160	8-18	320	210	170	8-23
100	280	215	180	8-18	280	230	190	8-23	320	350	190	8-23	360	250	200	8-25
125	320	245	210	8-18	320	270	220	8-25	360	270	220	8-25	381	295	240	8-30
150	360	280	240	8-23	360	300	250	8-25	400	300	250	8-25	403	340	280	8-34
200	400	335	295	12-23	400	360	310	12-25	502	375	320	12-30

Outline dimension table of clamp type connection

Dimensional Table for Internal Thread, Butt Welding, and Socket Welding Connections

OFixed ball structure with flange connection and external dimensions table