Explosion proof electric eccentric hemispherical valve PQ947

NegotiableUpdate on 04/30

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Overview

Explosion proof electric eccentric hemispherical valve PQ947 relies on rotating the valve chain to make the valve unobstructed or blocked. Ball valve switches are lightweight, small in size, can be made into large diameters, reliable in sealing, simple in structure, easy to maintain, and the sealing surface and spherical surface are often in a closed state, which is not easily eroded by media. They are widely used in various industries. Suitable for occasions with strict requirements for sewage treatment, pulp, alumina, and urban heating; Suitable for controlling power plants, hydraulic slag removal, or gas transmission pipelines.

Product Details

Carefully for you【Explosion proof electric eccentric hemispherical valve PQ947】It is one of the main products produced and sold by Shanghai Qiaoyi Valve Manufacturing Co., Ltd. The company has a large inventory of spot goods all year round and sells them directly at factory prices. We have been striving to provide customers with a complete set of industrial valve solutions, allowing them to purchase products with good quality and affordable prices!

Product Introduction:

Explosion proof electric eccentric hemispherical valve PQ947It relies on rotating the valve chain to make the valve unobstructed or blocked. Ball valve switches are lightweight, small in size, can be made into large diameters, reliable in sealing, simple in structure, easy to maintain, and the sealing surface and spherical surface are often in a closed state, which is not easily eroded by media. They are widely used in various industries. Suitable for occasions with strict requirements for sewage treatment, pulp, alumina, and urban heating; Suitable for controlling power plants, hydraulic slag removal, or gas transmission pipelines.

Features:

1. The fluid resistance is small, and its resistance coefficient is equal to that of a pipe segment of the same length.
2. Simple structure, small size, and light weight.
3. Tight and reliable. Currently, plastic is widely used as the sealing surface material for ball valves with good sealing performance, and it has also been widely used in vacuum systems.
4. Easy to operate, quick opening and closing, only need to rotate 90 ° from fully open to fully closed, making it convenient for remote control.
When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium, and when the medium passes through, it will not cause erosion of the valve sealing surface. Widely applicable, with diameters ranging from a few millimeters to several meters, suitable for applications from high vacuum to high pressure.

Component materials

Part Name	Material Name
valve body	WCB	304(CF8)	316(CF8M)	316L(CF3M)
sphere	2Cr13+nitriding treatment	304	316	316L
valve stem	2Cr13	304	316	316L
sealing ring	Polytetrafluoroethylene (PTFE), reinforced polytetrafluoroethylene (PPL), para polystyrene, flexible graphite
Applicable Medium	Water, gas, steam, oil, etc	Corrosive media such as nitric acid	Acetic acid and other corrosive media	Corrosive media such as urea

Technical Specifications

Nominal DiameterDN(mm)		25	32	40	50	65	80	100	125	150	200	250	300
Rated current Quantity coefficient KV	Full cavity type	14	25	30	55	100	135	230	320	500	850	1300	1750
	60% cavity type	-	-	-	-	-	-	-	-	300	510	780	1050
	40% cavity type	6	10	12	20	40	54	92	128	200	340	520	700
Allowable pressure difference (MPa)		≤ nominal pressure
Valve body form		Whole cast spherical body
Valve core form		Eccentric rotating valve core (with guide vanes)
flow characteristics		Approximately equal percentage
Action range		Fully open at 60 °
Leakage quantity Q		Soft seal level VI, hard seal level IV, in compliance with ANSI B16.104 standard
basic error		±1%
backlash		±1%
dead zone		≤1%
adjustable range		Full cavity type (100:1), 60% cavity type (60:1), 40% cavity type (40:1)
Configure execution mechanism		Can be equipped with PSQ, HQ, 361RS and other series of angular stroke electric actuators
Control method		Switch in position light (switch two position control), passive contact signal, 1/5K potentiometer, intelligent adjustment (4-20mA analog signal control)

Actuator parameters

Type of actuator	Parameters of miniature actuators	HQSeries actuator parameters
power supply voltage	Standard: 220V AC single-phase optional: 110V AC single-phase, 380/440V AC three-phase, 24V/110V/220V AC
output torque	50N·M～2000N·M	50N·M～3000N·M
Action range	0～90° 0～360°	0-90 °, 0 ° -270 ° optional
Control method	Switch in position light (switch two position control), passive contact signal, 1/5K potentiometer, intelligent adjustment (4-20mA analog signal control)
Action Time	15 seconds/30 seconds/60 seconds	18S～112S
protective device	overheat protection	Built in overheat protection and overload protection
ambient temperature	-30°～60°	-20℃～+70℃
manual operation	Comes with a handle for operation	Mechanical clutch mechanism, equipped with handwheel operation
mechanical limit	Electrical and mechanical dual limit	2 external adjustment bolts
Protection level	IP65	IP65、IP67、 Customizable IP68 rating
Explosion-proof rating	No explosion-proof	ExdⅡ BT4,ExdⅡ CT6
Position measurement	Optional switch or potentiometer	Potentiometer, proportional control unit
drive motor	8W/E	Squirrel cage asynchronous motor
Incoming interface	PE1/2 "incoming line lock	2 PF 3/4 '
Shell material	aluminum alloy	Steel, aluminum alloy, aluminum bronze, polycarbonate
outer coating	Dry powder, epoxy polyester, with anti-corrosion function
The electric braking circuit adopts *, resulting in high positioning accuracy, sensitive actuator, quick start stop, and smooth operation. Simultaneously possessing strong anti-interference, anti surge voltage, and anti breakdown capabilities

performance specifications

Nominal PressureMPa	1.0	1.6	2.5	4.0
Strength test MPa	1.5	2.4	3.8	6.0
Sealing test MPa	1.1	1.8	2.8	4.5
Applicable temperature ℃	≤ 425 ℃, ≤ 325 ℃ at room temperature
Main material	Cast steel, stainless steel
Applicable Medium	Coal powder, coal ash, dust, gas
Flange Standard	JB/T82.1-94
Valve structure length standard	GB12221-89

connection size

Nominal DiameterDN	L	L1	D	D1	D2	b	n-Φd	H	H1
PN0.6MPa (6bar)
32	180	357	120	90	69	16	4-14	65	450
40	200	357	130	100	78	16	4-14	75	460
50	250	357	140	110	88	16	4-14	90	480
65	270	357	160	130	108	16	4-14	105	500
80	280	367	190	150	124	18	4-18	120	520
100	300	367	210	170	144	18	4-18	135	630
125	325	367	240	200	174	18	8-18	155	650
150	350	367	265	225	199	20	8-18	175	680
200	400	555	320	280	254	22	8-18	210	770
250	533	555	375	335	309	24	12-18	260	820
300	610	691	440	395	363	24	12-22	300	840
350	686	733	490	445	413	24	12-22	340	1090
400	838	733	540	495	463	24	16-22	400	1205
450	864	938	595	550	518	24	16-22	430	1220
500	914	938	645	600	568	26	20-22	455	1270
600	1067	1066	755	705	667	30	20-26	560	1400
700	1250	1066	860	810	772	26	24-26	630	1460
800	1370	1191	975	920	878	26	24-30	690	1520
900	1490	1191	1075	1020	978	26	24-30	770	1580
1000	1680	1255	1175	1120	1078	26	28-30	880	1830
1200	1750	1255	1405	1340	1295	28	32-33	970	1910
1400	1880	1255	1630	1560	1510	32	36-36	1095	2020
PN1.0MPa (10bar)
32	180	357	140	100	76	18	4-18	65	450
40	200	357	150	110	84	18	4-18	75	460
50	250	357	165	125	99	20	4-18	90	480
65	270	357	185	145	118	20	4-18	105	500
80	280	367	200	160	132	20	8-18	120	520
100	300	367	220	180	156	22	8-18	135	630
125	325	367	250	210	184	22	8-18	155	650
150	350	367	285	240	211	24	8-22	175	680
200	400	555	340	295	266	24	8-22	210	770
250	533	555	395	350	319	26	12-22	260	820
300	610	691	445	400	370	26	12-22	300	840
350	686	733	505	460	429	26	16-22	340	1090
400	838	733	565	515	480	26	16-26	400	1205
450	864	938	615	565	530	28	20-26	430	1220
500	914	938	670	620	582	28	20-26	455	1270
600	1067	1066	780	725	682	34	20-30	560	1400
700	1250	1066	895	840	794	34	24-30	630	1460
800	1370	1191	1015	950	901	36	24-33	690	1520
900	1490	1191	1115	1050	1001	38	28-33	770	1580
1000	1680	1255	1230	1160	1112	38	28-36	880	1830
1200	1750	1255	1455	1380	1328	44	32-39	970	1910
1400	1880	1255	16754	1590	1530	48	36-42	1095	2020
PN1.6MPa (16bar)
32	180	357	140	100	76	18	4-18	65	450
40	200	357	150	110	84	18	4-18	75	460
50	250	357	165	125	99	20	4-18	90	480
65	270	357	185	145	118	20	4-18	105	500
80	280	367	200	160	132	20	8-18	120	520
100	300	367	220	180	156	22	8-18	135	630
125	325	367	250	210	184	22	8-18	155	650
150	350	367	285	240	211	24	8-22	175	680
200	400	555	340	295	266	24	12-22	210	770
250	533	555	405	355	319	26	12-26	260	820
300	610	691	460	410	370	28	12-26	300	840
350	686	733	520	470	429	30	16-26	340	1090
400	838	733	580	525	480	32	16-30	400	1205
450	864	938	640	585	548	40	20-30	4, 30	1220
500	914	938	715	650	609	44	20-33	455	1270
600	1067	1066	840	770	720	54	20-36	560	1400
700	1250	1066	910	840	794	40	24-36	630	1460
800	1370	1191	1025	950	901	42	24-39	690	1520
900	1490	1191	1125	1050	1001	44	28-39	770	1580
1000	1680	1255	1255	1170	1112	46	28-42	880	1830
PN2.5MPa (25bar)
32	180	357	140	100	76	18	4-18	65	450
40	200	357	150	110	84	18	4-18	75	460
50	250	357	165	125	99	20	4-18	90	480
65	290	357	185	145	118	22	8-18	105	500
80	310	367	200	160	132	24	8-18	120	520
100	350	367	235	190	156	24	8-22	135	630
125	381	555	270	220	184	26	8-26	155	650
150	403	555	300	250	211	28	8-26	175	680
200	419	555	360	310	274	30	12-26	210	770
250	568	691	425	370	330	32	12-30	260	880
300	648	705	485	430	389	34	16-30	300	980
350	762	733	555	490	448	38	16-33	340	1090
400	838	938	620	550	503	40	16-36	400	1165
450	914	938	670	600	548	46	20-36	430	1220
500	991	938	730	660	609	48	20-36	455	1270
600	1143	1066	845	770	720	58	20-39	560	1400

Shanghai Qiaoyi Valve provides you with high-quality【Explosion proof electric eccentric hemispherical valve PQ947】Product and comprehensive after-sales service. If you need to order this product, please provide detailed parameters such as caliber, pressure, material, etc! All the text, images, and data in this article are for reference only. If you need to learn more about performance parameters, structural dimensions, prices, and other details, please!