ZMAQ pneumatic diaphragm three confluence valve

關(guān)注次數(shù)：

ZMAX (Q) series of pneumatic diaphragm three valve dual spool upper and lower guide structure, equipped with multi spring actuator, valve for the four structures, namely one into two (shunt), two into a (confluent), so as to achieve the fluid mixing heating or cooling effect, or fluid from a shunt, meet the requirements of different conditions. The valve has the advantages of compact structure, in a light, sensitive action, small pressure drop loss, allowing the pressure high, new capacity is big, flow valve is accurate and convenient maintenance and so on, can be used in a variety of working conditions, temperature automatic control system and other industry control is especially suitable for the oil industry in the heat exchanger. The valve has closed (divided) flow type, (points) flow high temperature type and other types of. Product nominal pressure level of a user PN1.6, 4, 6.4; the valve nominal diameter range of DN25~400; leakage class II grade, IV grade; flow is characteristic for linear and equal percentage. A variety of different specifications are available.

Materials of main parts

Name	Texture of material
The valve body	ZG230-450、ZG0Cr18Ni9
Valve seat	0Cr18Ni9, 0Cr18Ni9+PTFE, 0Cr18Ni9+ division Chatterley
The valve stem	0Cr18Ni9、2Cr13
The push rod	0Cr18Ni9、2Cr13
Spring	60Si2Mn
Bellows	0Cr18Ni9
Corrugated diaphragm	Clip reinforced nylon fabric nitrile rubber
Film cover	A3、0Cr18Ni9
Shim	0Cr18Ni9, graphite spiral wound gasket (V6590), F4
Filler	PTFE, flexible graphite

The main technical parameters of the three-way valve

All diameter.	25	32	40	50	65	80	100	125	150	200	250	300	350	400
Seat diameter mm	25	32	40	50	65	80	100	125	150	200	250	300	350	400
Rated KV	8.5	13	21	34	53	85	135	210	340	535	800	1280	1960	2560
Nominal pressure（MPa）	1.6、2.5、4.0、6.4
Trip（mm）	16		25		40			60			100		130
The effective area of the film Ae （cm2）	280		350		560			900			1400		活塞式
Signal range KPa	20-100、40-200、80-240
Air pressure MPa	0.1-0.4												0.4-0.7
The inherent flow characteristics	Linear, equal percentage, quick opening
The inherent adjustable ratio	30:1
The leakage class	III、IV
Flange size	According to JB/79. (2) _94, HG20592_97, GB, ANSI, JIB, DIN and other standards
Body material	WCB, 304, 316, WC6, nickel, titanium, Hastelloy, Monel etc.
Valve material	304, 316, 420, nickel, titanium, Hastelloy, Monel etc.
Working temperature ℃	-40~+230 ℃ (room temperature), +230~+450 ℃ (temperature), +450~+560 ℃, -40~-196 ℃ (high temperature) (low)
Series type	At room temperature, medium temperature, low temperature type. Bellows seal type, jacket type heat, regulating off type

Main performance index

Serial number	Project		The performance index
			Not with a locator	with a locator
1	basic error（%）		±5	±1
2	The return difference <（%）		3	1
3	The dead zone<（%）		3	0.4
4	Always point bias<（%）	The starting point（%）	±5	±1
		Finish（%）	±2.5
5	Rated stroke deviation <（%）		±2.5
6	Allowable leakage （1/h）		The rated flow coefficient deviation< (%)
7	The rated flow coefficient deviation<（%）		±10
8	The inherent flow characteristics		To meet the requirements specified in IEC534-1 and GB/T4213-92 slope deviation in

Note: This product performance accords with GB/T4213 - 2008

DN（mm）		25	32	40	50	65	80	100	125	150	200	250	300
L	PN1.6MPa	185	200	220	250	275	300	350	410	450	550	670	700
	PN4.0MPa	190	210	230	255	285	310	355	425	460	560	740	803
	PN6.4MPa	200	200	240	265	295	320	370	440	475	570	752	819
H1		135	152	165	180	200	220	222	265	322	362	508	563
A		280				360			470			580
H Normal atmospheric temperature		702	718	795	830	1067	1080	1094	1293	1321	1400	2065	2151
H Medium temperature		832	818	925	960	1214	1243	1257	1492	1520	1597	2340	2432
Weight (PN64 at room temperature）		40	45	60	65	100	125	150	250	290	450	-	-

Ordering instructions
When ordering, please fill in "specification" or indicate the following contents:
One, if the order has not selected models, please provide the parameters are used to send us your
1, nominal diameter, nominal flow in coefficient Kv
2, the fluid properties (including the nominal pressure, temperature, viscosity and pH value "
3, the valve action form (gas closed or gas - Open)
4, flow at
5, in front of the valve, the valve pressure
6, valve body, broad core material
7, the input signal
8, with the attachment, the attachment type, so that we can correct for your selection.
Two, special requirements
1, special inspection
2, complete degreasing, water treatment;
3, no copper processing;
4, special interface, piping;
5, the use of vacuum conditions;
6, specify the color of the coating
7, special medium (gas, chlorine, nitrogen)
8, the use of stainless steel connections;
Three, if the unit has been selected from the design of our products, please click models directly to our sales department order
Four, the occasion is very important when using or complicated pipelines, please make cocoons provide design drawings and detailed parameters, from our experts to your review gatekeeper.