700X pump control valve

Product Item：700X

Nominal diameter: DN50~DN1200

Material: Cast Iron, Cast Steel

Nominal pressure: PN1.0~2.5MPa

Applicable temperature: -10℃- 150℃

Description

700X pump control valve

700X pump control valve is installed at the pump's outlet in high building and other feeding system to prevent fluid flowing backwards. Before the pump stops, the valve closes 90% or so ahead to prevent water hammering and water hitting at the pump's instant stop; after the pump completely stops, the valve closes fully to prevent fluid flowing backwards at the outlet of the pump to protect the pump and prevent it from turning backwards due to backward flow of the fluid.

This is necessary protection equipment for the pump. It is flow-line designed and it can open or close to electric-magnetic valve's pilot. It is safe to use and it is easy to install and to maintain this kind of valve.

Performance

Nominal Pressure (MPa)	Shell Test (MPa)	Sealing Test (MPa)	Fluids	Fluids Temp (°C)
1.0	1.5	1.1	Water	0-80
1.6	2.4	1.76
2.5	3.75	2.75

Materials

No.	Part	Material
1	Plug	Alloy Bronze
2	Body	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
3	Seat	410 S.S. / SS 304 / SS 316
4	O-Ring	NBR
5	O-Ring	NBR
6	O-Ring Retainer	Cast Iron
7	Stem	410 S.S. / SS 304 / SS 316
8	Disc	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
9	Diaphragm	Rubber
10	Diaphragm washer	Cast Iron
11	Nut	Alloy Bronze
12	Ball valve	Alloy Bronze
13	Spring	Stainless steel
14	Cover	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
15	Pilot socket	Alloy Bronze
16	Solenoid valve	Alloy Bronze
17	One-way valve	Alloy Bronze
18	On/Off
19	Yoke	Steel
20	Limitation piece	Alloy Bronze
21	Plug	Alloy Bronze
22	Metering	410 S.S.
23	One-way valve	Alloy Bronze
24	Needle Valve	Alloy Bronze
25	Nut	Steel
26	Screw	Steel
27	Ball valve	Alloy Bronze
28	Pressure Gauge
29	Connection Pipe	Alloy Bronze

Dimensions

DNmm		20	25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L		180	180	180	203	203	235	280	360	400	455	585	650	800	860	915	980	1075	1230	1300	1450
PN10	D	105	115	135	145	160	180	195	215	245	280	335	390	440	500	565	615	670	780	895	1010
PN10	D1	75	85	100	110	125	145	160	180	210	240	295	350	400	460	515	565	620	725	840	950
PN16	D	105	115	135	145	160	180	195	215	245	280	335	405	460	520	580	640	705	840	910	1020
PN16	D1	75	85	100	110	125	145	160	180	210	240	295	355	410	470	525	585	650	770	840	950
PN25	D	105	110	135	145	160	180	195	230	270	300	360	425	485	550	610	660	730	840	955	1070
PN25	D1	75	85	100	110	125	145	160	190	220	250	310	370	430	490	550	600	660	770	875	990
H		342	342	342	395	395	405	430	510	560	585	675	730	760	840	910	1070	1135	1270	1460	1640
H1		247	247	247	278	278	298	313	350	365	420	450	470	490	526	570	610	665	725	865	975