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ZMAP (N) pneumatic thin film low temperature regulating valve

Quality stability: the implementation of the whole process of quality control, meticulous, all aspects of detection!
Reasonable price: effective internal cost control, reduce expenses, let the benefit of customers!
Fast delivery: advanced production line, sufficient stock, shorten the delivery time!

sell：021-32051999
sell：021-32050777
fax：021-66099555

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Product Introduction
Service Promise
Ordering Process

ZMAP Pneumatic Film Low Temperature Single Seat Regulating Valve/ZMAN Pneumatic Film Low Temperature Double Seat Regulating Valve is a deformation product of single seat and double seat regulating valve. It differs from normal temperature in that it uses long neck upper cover to make packing work at normal temperature. Pneumatic thin film cryogenic control valve is suitable for medium (such as liquid oxygen, liquid nitrogen, etc.) in low temperature and strong state of - 60 ~ - 250 C. In order to ensure the accuracy of adjustment, positioners must be used.

Structure principle of pneumatic low temperature regulating valve

The pneumatic low temperature control valve is composed of pneumatic membrane actuator and single-seat and double-seat control valves which can withstand low temperature.

The signal pressure from the regulator is fed into the air chamber of the pneumatic membrane actuator to generate thrust. The valve core is driven by connecting rods. The change of the valve core position makes the valve flow cross-sectional area change and realizes the adjustment of the medium flow rate.

Main technical parameters of pneumatic low temperature regulating valve

公稱通徑 DN	單座	20										25	32	40	50	65	80	100	125	150	200
	雙座											25	32	40	50	65	80	100	125	150	200
額定流量	單座	0.08	0.12	0.2	0.32	0.5	0.8	1.2	2	3.2	5	8	12	20	32	50	80	120	200	280	450
系數(shù)Kv	雙座											10	6	25	40	63	100	160	250	400	630
流量特性		直線						直線；等百分比
配用執(zhí)行機(jī)構(gòu)型號(hào)												ZMA-2		ZMA-3		ZMA-4			ZMA-5
行程		10						10				16		25		40			60
作用方式		氣關(guān)式（B），氣開(kāi)式（K）
彈簧壓力范圍KPa		標(biāo)準(zhǔn)信號(hào)：20～100；其它信號(hào)；40～200；20～60；60～100

Main dimensions of pneumatic low temperature regulating valves

公稱通徑DN（mm）				20	25	32	40	50	65	80	100	125	150	200
A			230	280	280		325		410			495
			135	235	235	255	280	310	345	370	430	470	550	660
1			160	260	260	285	305	340	375	405	460	525	590	700
2			190	290	290	315	335	370	410	440	490	560	630	740
n-			6-12	8-14	8-14	8-14	8-16		10-16	10-18	12-18	16-18		20-18
單座	H	L	120	190	200	210	235	265	295	210	370	440	475	570
		H1=500	862	1006	1060	1066	1137	1152	1377	1390	1394
		H1=600	962	1106	1160	1166	1237	1252	1477	1490	1494
		H1=700	1062	1206	1260	1266	1337	1352	1577	1590	1594	1743	1751	1790
		H1=800	1162	1306	1360	1366	1437	1452	1677	1690	1694	1843	1851	1890
		H1=900	1262	1406	1460	1466	1537	1552	1777	1790	1794	1943	1951	1990
		H1=1000	1362	1506	1560	1566	1637	1652	1877	1890	1894	2043	2051	2090
		H1=1100										2143	2150	2190
		H1=1200										2243	2250	2290
	H2		32	58	112	118	129	144	178	191	195	243	251	290
雙座	H	L			200	210	235	265	295	320	370	440	475	570
		H1=500			1065	1068	1147	1152	1387	1407	1419
		H1=600			1165	1168	1247	1252	1487	1507	1519
		H1=700			1265	1268	1347	1352	1587	1607	1619	1768	1778	1820
		H1=800			1365	1368	1447	1452	1687	1607	1719	1868	1878	1920
		H1=900			1465	1468	1547	1552	1787	1807	1819	1968	1978	2020
		H1=1000			1565	1568	1647	1652	1887	1907	1919	2068	2078	2120
		H1=1100										2168	2178	2220
		H1=1200										2268	2278	2320
	H2				117	120	139	144	188	208	208	268	278	320

Matters needing attention in pneumatic low temperature regulating valve

1. Should be installed vertically on the horizontal pipeline, in special cases need to be installed horizontally or inclined, generally should be supported. The garden plate installed on the wall of the incubator should be parallel to the heat preservation box wall.

2. Should be installed near the ground or floor, in order to maintain maintenance, positioner or handwheel mechanism, should ensure that the observation, adjustment and operation of convenience.

3. Generally, by-pass pipes are installed to switch to manual operation when the automatic control system fails or is repaired, so as not to stop production.

4. When the handwheel mechanism is installed, manual operation of bypass pipeline can be omitted, and the opening can be limited. When it stops using, the handwheel mechanism must return to the original neutral position to facilitate the normal operation of the automatic control system.

5, when installing, the flow direction of the medium should be consistent with the direction of the valve body.

6, before installation, pipe cleaning and welding slag should be cleaned. After installation, make full opening, piping and so on to clean and test the sealing ability of the joints.

The best quality, first-class service Qigao creates more value for you!

"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

Product Standards：

Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

pre-sale service：

Product introduction, technical exchange, non-standard product design, troubleshooting。

Sale service：

A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service：

1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：

a、Structure length；

b、Connection Type；

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range；

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

Order Process：

1、Customer purchase list fax to021-33872143，Or call us 021-33872141

2、Receive customer purchase list, provide valve model selection and quotation (price list)。

3、Specific agreement: delivery date, special requirements, etc.。

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1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：

a、Structure length；

b、Connection Type；

c、Nominal diameter, full diameter, reduced diameter, pipe size；

d、Operating medium and temperature, pressure range；

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time.， The rest of the payment will be remitted before shipment to arrange delivery in time.。

Sale service：

Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service：

1、"Qigao" product quality period is from the factory12Month, practice“Three packs”Service (return, replacement, warranty)。

3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。

statement

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