ZMAS High Pressure Angle Control Valve

ZMAS High Pressure Angle Control Valve

Detailed introduction:

The supplier of “ZMAS High Pressure Angle Control Valve”, the “pneumatic control valve” supplied by our company is of high quality, reasonable price, and perfect after-sales service. “ZMAS High Pressure Angle Control Valve” is suitable for light and heavy industry and building pipelines. On the way forward, let Xinhui Valve solve your problems! [Regulating valve] can be used in: chemical, petrochemical, petroleum, papermaking, mining, electric power, liquefied gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronic industry, urban construction, and other fields.

product name	ZMAS High Pressure Angle Control Valve
Product number	NEQJT
Nominal diameter	DN15-150
pressure range	1. 0-6. 4MPa
valve body material	Cast iron丨ductile iron丨cast steel丨stainless steel

[Control valve] valve body type selection: There are many types of valve bodies for control valves, and the commonly used valve body types include

① straight-through single seat

② straight-through double seat

③ angle

④ diaphragm

⑤ small flow

⑥ three-way

⑦ eccentric rotation

⑧ butterfly

⑨ sleeve Cylinder type

⑩ spherical and so on.

[Regulating valve] The following considerations can be made in the specific selection:

(1) The shape and structure of the valve core: It is mainly considered according to the selected flow characteristics and unbalanced force.

(2) Wear resistance: When the fluid medium is a suspension containing a high concentration of abrasive particles, the internal material of the valve should be hard.

(3) Corrosion resistance: Since the medium is corrosive, try to choose a valve with a simple structure.

(4) The temperature and pressure of the medium: when the temperature and pressure of the medium are high and the change is large, the valve core and the valve seat material should be selected with small changes in temperature and pressure. When the temperature is 250°C, a radiator should be added. .

(5) Prevent flash evaporation and cavitation: Flash evaporation and cavitation only occur in liquid media. In the actual production process, flash evaporation and cavitation will form vibration and noise, shorten the use of the valve, so the valve should be prevented from flashing and cavitation when selecting the valve. Overview of ZMAS High Pressure Angle Control Valve:

ZMAS High Pressure Angle Control Valve is composed of pneumatic multi-spring diaphragm actuator and low flow resistance single seat valve. The new actuator is low in height, light in weight and easy to install. The new valve body has a compact structure, a smooth flow channel and a large flow coefficient. This product operates stably, has good action characteristics, small valve seat leakage, accurate flow characteristics, and a wide adjustable range. It has the advantage of achieving high quality control in the application. Products include standard type, adjustable cut-off type, bellows seal type, jacket insulation type, etc.
Variety. Applicable to various grades of liquid temperature ranging from -200^ to +560C. (Accessories available: positioner, air filter pressure reducer, position retaining valve, travel switch, valve position transmitter, solenoid valve, handwheel mechanism, etc.)

[1] ZMAS High Pressure Angle Control Valve Performance Index:

Project		Index value	project				Index value
Basic Error %	Without positioner	±5.0	Start point end point deviation %	air shut	Without positioner	start point	±5. 0
	With positioner	±1.0				end point	±2. 5
Return difference %	Without positioner	<3.0			With positioner	start point	±1.0
						end point	±1.0
	With positioner	<1.0		air open	Without positioner	start point	±2. 5
						end point	±5. 0
Dead zone	Without positioner	<3.0			With positioner	start point	±1.0
						end point	±1.0
	With positioner	<0.4	Allowable leakage L/h				1X10-4X Valve Rated Capacity
Rated stroke deviation%		±2.5

 

Note: This product implements the national standard GB/T4213-92.

[2] Allowable differential pressure MPa:

Switching method	Actuator Model	spring range KPa	Air source pressure KPa	Attachment required	Nominal diameter (valve seat diameter) mm
					25				25	40		50	65	80	100	150		200	250	300
					(10)	(12)	(15)	(20)		(32)	(40)					(125)	(150)
air shut	ZHA -22	20〜 100 20〜 100 40〜 200	140 250 140	P P P or R	6.4 6.4 6.4	5.94 6.4 6.4	3.34 6.4 6.4	3.34 6.4 6.4	2.14 6.4 6.4

	ZHA -23	20〜 100 20〜 100 40〜 200	140 250 400	P P P or R						1. 31 6. 09 6.4	0. 84 3.9 5.26	0.5 3 2.5 3.3 9
	ZHA	20〜	140	P									0.5	0.	0.21
	-34	100	250	P									1	33	1.0
		20〜	400	P									2.3	1.	1.35
		100		or									6	56
		40〜		R									3.2	2.
		200											1	12
	ZHA	20〜	140	P												0.22	0.15	0.08
	-45	100	250	P												1.02	0. 71	0.40
		20〜	400	P												1.39	0. 97	0.54
		100		or
		40〜		R
		200
	ZHA	20〜	140	P															0.06	0.04
	-56	100	250	P															0.37	0.25
		20〜	400	P															0.51	0.36
		100		or
		40〜		R
		200

air open	ZHB	20〜	140	P	4.46	3. 09	1.98	1.11	0. 71
	-22	100	250	P	6.4	6.4	5.94	3.34	2.14
		40〜	400	or	6.4	6.4	6.4	6.4	4.99
		200		R
		80〜		P
		240
	ZHB	20〜	140	P						0.44	0.28	0.1
	-23	100	250	P						1.37	0.84	8
		40〜	400	or						3.05	1.95	0.5
		200		R								3
		80〜		P								1.2
		240										5
	ZHB	20〜	140	P									0.1	0.	0.07
	-34	100	250	P									7	11	0.21
		40〜	400	or									0.5	0.	0.5
		200		R									1	33
		80〜		P									1.1	0.
		240											8	78
	ZHB	20〜	140	P												0.07	0.05	0.02
	-45	100	250	P												0.22	0.15	8
		40〜	400	or												0.51	0.35	0.08
		200		R														0.20
		80〜		P
		240
	ZHA	20〜	140	P															0.03	0.02
	-56	100	250	P															0.09	0.06
		20〜	400	P															0.20	0.14
		100		or
		40〜		R
		200

Note: (1) P-Valve Positioner; R-Pressure Relay; (2) Allowable differential pressure for valve closing P2=. (3) If the allowable pressure difference is unclear or the maximum working pressure difference is beyond the list, please contact us.

【three】main parts material:

Part Name	Material	temperature range
valve body top valve cover	HT200	-20〜200°C
	ZG230-450	-40〜450°C
	ZG1Cr18Ni9Ti	-250—550C
	ZG0Cr18Ni12Mo2Ti	-250—550C
valve core, valve seat	1Cr18Ni9	-250—550C
	0Cr18Ni12Mo2Ti	-250—550C
packing	polytetrafluoroethylene	-40〜200C
Diaphragm	Nitrile rubber clip reinforced polyester fabric
compressed spring	60Si2Mn
Membrane cover	A3

 

[4] The main technical parameters of the adjustment mechanism:

Nominal diameter mm			20				25	40		50	65	80	100	150		200	250	300	350	400
Diameter of valve seat mm			10	12	15	20	25	32	40	50	65	80	100	125	150	200	250	300
Nominal flow Coefficient Kv		straight line equal percentage	1. 8	2. 8	4.4	6.9	11	17. 6	27. 5	44	69	110	176	275	440	690	1000	1600
			1. 6	2. 5	4	6.3	10	16	25	40	63	100	160	250	400	630	900	1440
Nominal pressure MPa			0. 6 1. 6 4. 0 6. 4
stroke mm			10				16	25			40			60			100
Traffic characteristics			Straight line, equal percentage, quick opening
Media temperature C			-40-230C (normal temperature type), heat sink type 230-450C (medium temperature type), customized -100~600C
Flange Standard			Comply with JB78-59, JB79-59 standards, can be ordered according to JB/79.1-94, JB/79.2-94, ANSI, JIS, DIN and other standards
valve body material	PN (MPa)	0. 6, 1.6	WCB(ZG230-450) CF3CF8 CF8M
		4. 0, 6.4	WCB(ZG230-450), ZG1Cr18Ni9Ti、 ZG0Cr18Ni12Mo2Ti CF8 CF8M
valve body type			Straight Single Seat Cast Ball Valve
Valve core material			1Cr18Ni9、 0Cr18Ni12Mo2Ti CF8 CF8M
Upper valve cover form			Common type (normal temperature type), hot plate type (medium temperature type), low temperature type
Adjustable ratio R			50:1
Gas source connector			M16X1. 5

 

Note: ANSI and JIS flanged products can be provided for users, and the structural length can also be determined according to user needs.

【V】Main technical parameters of the actuator:

model	ZHA-22 ZHB-22	ZHA-23 ZHB-23	ZHB-34 ZHB-34	ZHA-45 ZHB-45	ZHA-56 ZHB-56
Effective area cm2	350	350	560	900	1600
stroke mm	16	25	40	60	100
Spring range KPa	20—100（standard）:40〜200; 80〜240; 20—60; 60〜100

【Six】ZMAS High Pressure Angle Control Valve Dimensions mm:

 

DN	L			H		H1				weight (kg)		0A
	PN16	PN40	PN64	general	high temperature	PN6	PN16	PN40	PN64	PN6 PN16	PN40 PN64
20	181	194	206	398	548	45	52		65	19	23	285
25	185	197	210	410	560	50	57		70	20	24
40	222	235	251	455	620	65	75		85	26	35
50	254	267	286	457	627	70	82		90	30	40
65	276	292	311	610	790	80	92		100	47	66	360
80	298	317	337	622	807	95	100		107	55	78
100	352	368	394	640	850	105	110	117	125	65	99
150	451	473	508	870	1130	132	142	150	172	130	160	470
200	600		650	890	1150	160	170	187	207	175	250
250	730		775	1203	1523	187	202	225	235	350	470	580
300	850		900	1234	1554	220	230	257	265	500	660

 

[Regulating valve] It consists of two parts: an electric actuator or pneumatic actuator and regulating valve. The regulating valve is divided into an electric regulating valve, a pneumatic regulating valve, and a hydraulic regulating valve (self-operated regulating valve). The regulating valve is used to regulate the flow, pressure, and liquid level of the medium. According to the signal of the adjustment part, the opening of the valve is automatically controlled, so as to achieve the adjustment of medium flow, pressure, and liquid level. [Control valve] is usually divided into two types: straight-through single-seat control valve and straight-through double-seat control valve. The latter has the characteristics of large flow capacity, small unbalance, and stable operation, so it is usually suitable for large flow, high-pressure drop, and Occasions with little leakage. The flow capacity Cv is one of the main parameters for selecting the control valve. The flow capacity of the control valve is defined as when the control valve is fully opened, the pressure difference between the two ends of the valve is 0.1MPa, and the fluid density is Lg/cm3, the flow rate per hour is The flow rate of the diameter control valve, called the flow capacity, also called the flow coefficient, is expressed in Cv, the unit is t/h, and the Cv value of the liquid is calculated as follows.