100D constant water level valve

NegotiableUpdate on November 02

Model

Nature of the Manufacturer: Other

Product Category: Water resources system industry

Place of Origin: City, Province

Online Consult Contact Information

Overview

name: 100D constant water level valveType: 100DPresure: 1.0~2.5MPaSpecifications: DN50~DN600material: Grey cast iron, nodular cast iron, carbon steel

Product Details

Product description
100D water valve is a valve diaphragm type adjustment tank and water tower in height. The valve is controlled by the floating ball, when the liquid level reaches the set height, the valve passes the signal through the relevant structure to transfer a water pump, and the water pump stops the water supply; when the liquid level bottom is in the set position, the water pump automatically supply water. The valve action is stable and effective to prevent the opening of the pump water hammer and stop pump water hammer. Avoid excessive pressure on the pipe. Automatic water supply system for water tank, a water tower. The valve maintenance is simple, flexible and durable, high accuracy of level control, the water level is not affected by water pressure interference and close tight, reliable performance.

Main connection and dimensions(PN10)

公称通径	主要外形尺寸及连接尺寸(mm)
	阀门尺寸mm			法兰连接尺寸mm
	L	H1	H	D	D1	D2	b	f	Z-Φd
50	203	210	265	165	125	93	18	3	4-Φ18
65	213	215	310	185	145	113	18	3	4-Φ18
80	241	245	350	200	160	128	20	3	8-Φ18
100	272	305	460	220	180	148	20	3	8-Φ18
125	300	365	520	250	210	178	22	3	8-Φ18
150	333	415	570	285	240	204	22	3	8-Φ22
200	400	510	595	340	295	259	24	3	8-Φ22
250	480	560	780	395	350	314	26	3	12-Φ22
300	550	658	905	445	400	362	26	4	12-Φ22
350	620	696	1025	505	460	422	26	4	16-Φ22
400	685	735	1030	565	515	473	26	4	16-Φ26
450	750	610	1080	615	565	523	28	4	20-Φ26
500	810	665	1135	670	620	578	28	4	20-Φ26
600	935	725	1270	780	725	677	34	5	20-Φ30

主要连接及外形尺寸(PN16)

公称通径	主要外形尺寸及连接尺寸(mm)
	阀门尺寸mm			法兰连接尺寸mm
	L	H1	H	D	D1	D2	b	f	Z-Φd
50	203	210	265	165	125	93	18	3	4-Φ18
65	213	215	310	185	145	113	18	3	4-Φ18
80	241	245	350	200	160	128	20	3	8-Φ18
100	272	305	460	220	180	148	20	3	8-Φ18
125	300	365	520	250	210	178	22	3	8-Φ18
150	333	415	570	285	240	204	22	3	8-Φ22
200	400	510	595	340	295	259	24	3	12-Φ22
250	480	560	780	405	355	315	26	3	12-Φ26
300	550	658	905	460	410	370	28	3	12-Φ26
350	620	696	1025	520	470	428	30	4	16-Φ26
400	685	735	1030	580	525	479	32	4	16-Φ30
450	750	610	1080	640	585	539	40	4	20-Φ30
500	810	665	1135	715	650	601	44	4	20-Φ33
600	935	725	1270	840	770	716	54	5	20-Φ36

主要连接及外形尺寸(PN25)

公称通径	主要外形尺寸及连接尺寸(mm)
	阀门尺寸mm			法兰连接尺寸mm
	L	H	H1	D	D1	D2	b	f	Z-Φd
50	203	210	265	165	125	93	20	3	4-Φ18
65	213	215	310	185	145	113	22	3	8-Φ18
80	241	245	350	200	160	128	24	3	8-Φ18
100	272	305	460	235	190	154	24	3	8-Φ22
125	300	365	520	270	220	180	26	3	8-Φ26
150	333	415	570	300	250	210	28	3	8-Φ26
200	400	510	595	360	310	270	30	3	12-Φ26
250	480	560	780	425	370	326	32	3	12-Φ30
300	550	658	905	485	430	386	34	3	16-Φ30
350	620	696	1025	555	490	441	38	4	16-Φ33
400	685	735	1030	620	550	498	40	4	16-Φ36
450	750	610	1080	670	600	548	46	4	20-Φ36
500	810	665	1135	730	660	608	48	4	20-Φ36
600	935	725	1270	845	770	713	58	5	20-Φ39

Main parts material

Material code	Valve body, valve cover	The stem	valve seat	sealing ring	diaphragm	spring
Z	HT200 Gray cast iron	20Cr13	Gray cast iron	NR/NBR/EPDM/FEP/PFA	NR/NBR/EPDM/FEP/PFA	stainless steel
Q	QT450 Nodular graphite cast iron	20Cr13	Nodular graphite cast iron
C	WCB carbon steel	20Cr13	carbon steel

Other special materials, our company can also be tailored to customer needs.

Main performance characteristics

Shell material	Shell applicable temperature（℃）	Casing applicable pressure MPa
Gray cast iron（Z type）	≤200	≤1.6
Nodular graphite cast iron（Q type）	≤350	≤4.0
carbon steel（C type）	≤425	-
stainless steel（R type）	≤650	-

Sealing ring / diaphragm	Applicable medium	Applicable temperature（℃）
Natural rubber （NR）	ydrochloric acid, 30% sulfuric acid, 50% hydrofluoric acid, alkali, etc. 50%	≤85
Nitrile rubber（NBR）	Water, oil, waste gas and waste liquid pollution.	≤150
Ethylene propylene rubber （FPDM）	In addition to salt water, 40% boron water, 5%~15% nitric acid and sodium hydroxide, etc..	≤120
Poly (ethylene propylene) plastics（FEP）	In addition to the molten alkali metals, fluorine and aromatic hydrocarbons hydrochloric acid, sulfuric acid, aqua regia, organic acid, strong oxidizing agents, concentrated and dilute acid alternate, alternating alkaline and various organic solvents.	≤150
Fusible polytetrafluoroethylene （PFA)		≤180

Nominal pressure PN（MPa）	Shell（MPa）	Test pressure（MPa）
Nominal pressure PN（MPa）	Shell（MPa）	Seal (liquid)	Seal (gas)
1.0	1.5	1.1	0.6
1.6	2.4	1.76	0.6
2.5	3.75	2.75	0.6

Implementation standards
Design specification: JB/T10674
Structure length: JB/T10674, GB/T 12221
Connecting flange: GB/T9113, HG/T20592, HG/T20615, JB/T 79
Experiment and test: GB/T13927, JB/T 9092
Pressure temperature: GB/T 17241.7, GB/T12224
Product identification: GB/T 12220

Valve maintenance
(1) the engineering application of the hydraulic control valve is a manufacturing plant inspection, a variety of complete, technical information to meet the requirements of the product.
(2) the nominal pressure of the valve has different levels, the pipeline transportation of the media, the working pressure should be less than the value of the valve nominal pressure.
(3) the project of the hydraulic control valve setting should have enough space for management, operation, installation and maintenance, and should meet the requirements of the pipeline valve.
(4) when the pipe is connected by flange, the hydraulic control valve with flange connection should be adopted, and the hydraulic control valve with groove connection should be adopted when the pipeline is connected with a groove.
(5) the hydraulic control valve should be set on the one-way flow of media in the pipeline.
(6) the direction of the arrow on the main body of the hydraulic control valve must be consistent with the direction of the pipeline system.
(7) the water control valve should not have gas blocking, air resistance. Automatic exhaust valve should be set at the highest position of the pipe network.
(8) when the valve is installed, the valve cover and valve stem should be facing up. Vertical installation, valve cover, valve stem should be outward.
(9) the valve should be done before the installation of strength and tightness test.