Electric O-Type Shut-Off Ball Valve

Overview

ZDRO Electric O-Type Shut-Off Ball Valve is suitable for two-position shut-off and regulating service. The valve is directly coupled to the actuator. The electric actuator features a built-in servo system, so no separate servo amplifier is required; operation is controlled simply by applying a 4-20 mA signal and 220 VAC power. It offers simple wiring, compact structure, small size, light weight, low flow resistance and stable, reliable operation. On request, the actuator can be supplied as UNIC, PSQ, HQ, DHL series electric actuators, or GTX and AL series pneumatic piston actuators.

Design & Manufacturing Standards

Design & manufacture: GB12237-89, API 608, API 6D, JPI 7S-48, BS5351, DIN3357
Flange dimensions: JB/T74~90 (JB74~90), GB9112~9131, HGJ44~76, SH3406, ANSI B16.5, JIS B2212~2214, NF E29-211, DIN2543
Face-to-face dimensions: GB12221-89, ANSI B16.10, JIS B2002, NF E29-305, DIN3202
Inspection & testing: JB/T 9092, API 598

Actuator & Valve Technical Parameters

CH Series Actuator Technical Parameters		Valve Body Parameters
Power Supply	AC200/220V, 50/60Hz	Nominal Diameter	DN10~300mm
Output Torque	50N·M~2000N·M	Nominal Pressure	PN1.6 2.5 4.0 6.4 31.5MPa (custom)
Operating Range	0~90° 0~360°	Leakage	Soft seal: zero leakage	Hard seal: ≤10-5 of rated flow
Operating Time	15s/30s/60s	Actuator	PSQ, HQ, UNIC, 361RS and other series of electronic electric actuators can be fitted
Protection Device	Overheat protection	Flow Characteristic	Quick opening
Ambient Temperature	-30°~60°	Adjustable Range	DN10-80	DN100-300
Ambient Temperature	-30°~60°	Adjustable Range	250:1	350:1
Manual Operation	Handwheel provided	Basic Error	±1%
Limit Switch	Electrical & mechanical dual limit	Dead Band	≤1%
Protection Class	Equivalent to IP-65	Hysteresis	≤1%
Position Measurement	Switch or potentiometer optional	Applicable Temperature	Sealing surface
Drive Motor	8W/E		PTFE≤150℃ RTFE≤180℃ PPL≤300℃ Hard seal≤450℃
Cable Entry	PE1/2″ cable gland		PTFE≤150℃ RTFE≤180℃ PPL≤300℃ Hard seal≤450℃

CH Series Actuator

CH series actuators accept 4~20 mA DC or 1~5 V DC control signals directly from computers or industrial instruments and are powered by 220 VAC. The actuator compares the valve position feedback with the setpoint and adjusts the drive motor in intelligent steps (PID regulation), positioning the valve or other device coupled to the actuator precisely while transmitting a 4~20 mA DC position feedback signal. The core control component is an electronic servo controller built to DCS/PLC specifications using modern digital technology, integrating signal acquisition, processing, feedback and control in one unit. A proprietary electronic braking circuit combined with a mechanical damping device overcomes inertia, allowing instant, oscillation-free stopping at the set position; positioning accuracy reaches 0.3% or better. SCR (thyristor) output provides fast response, stable output and high reliability. Compact, light and small, with dependable performance and high flow capacity, it is especially suited to viscous media or media containing particles or fibers. It is widely used in automatic control systems in the food, environmental protection, light industry, petroleum, papermaking, chemical, education and research, electric power and other industries.

Test Pressure

Test Pressure (MPa)	Nominal Pressure (MPa)					Pressure Class (class)			JIS (MPa)
Test Pressure (MPa)	1.6	2.5	4.0	6.4	10.0	150	300	600	10K	20K
Shell Test	2.4	3.8	6.0	9.6	15.0	3.1	7.8	15.3	2.4	3.8
Seal Test	1.8	2.8	4.4	7.0	11.0	2.2	5.6	11.2	1.5	2.8
Air Tightness Test	0.5~0.7

Main Component Materials

Part Name	Material
Body	WCB	ZG1Cr18Ni9Ti	CF8 (304)	CF3 (304L)	ZG1Cr18Ni12Mo2Ti	CF8M (316)	CF3M (316L)
Ball & Stem	2Cr13	1Cr18Ni9Ti	0Cr19Ni9 (304)	00Cr19Ni11 (304L)	1Cr18Ni12Mo2Ti	0Cr17Ni12Mo2 (316)	00Cr17Ni12Mo2 (316L)
Seat Ring	PTFE, reinforced PTFE (PPL), polyphenylene, flexible graphite
Suitable Media	Water, gas, steam, oil, etc.	Nitric acid and other corrosive media		Strong oxidizing media	Acetic acid and other corrosive media		Urea and other corrosive media

Flow Characteristics (KV Values)

Nominal Diameter	KV Values at Different Opening Angles
Opening Angle	10°	20°	30°	40°	50°	60°	70°	80°	90°
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	80	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

Overall Dimensions

Nominal Pressure DN	L	D	H	L1	D1	b	Z-d1	H1
Pressure	1.6/2.5/4.0	1.6/2.5/4.0			1.6/2.5/4.0	1.6/2.5/4.0	1.6/2.5/4.0
15	130/130/140	95	275	157	65	14/16/16	4-14	48
20	140/140/150	105	280	157	75	14/16/16	4-14	53
25	150/150/165	115	287	157	85	14/16/16	4-14	58
32	165/165/180	135	354	208	100	16/16/18	4-18	68
40	180/180/200	145	312	208	110	16/16/18	4-18	73
50	200/200/220	160	325	208	125	16/20/20	4-18	80
65	220/220/250	180	335	256	145	18/22/22	4-18/8-18/8-18	90
80	250/250/280	195	365	256	160	20/22/22	8-18	98
100	280/280/320	215/230/230	400	256	180/190/190	20/24/24	8-18/8-23/8-23	120
125	320/320/360	245/270/270	420	256	210/220/220	24/28/30	8-23/8-25/8-25	140
150	360/360/400	280/300/300	440	256	240/250/250	24/28/30	8-23/8-25/8-25	167
200	400/400/550	335/360/375	470	256	295/310/320	26/34/38	12-23/12-25/12-30	210
250	630 750	405 470	545	380
300	750 870	460 530	580	380