DC medium no thrust compensator
- sell：021-32051999
- sell：021-32050777
- fax：021-66099555
Details
- Product Introduction
- Service Promise
- Ordering Process
The appearance of DC medium non-thrust compensator is undoubtedly a breakthrough in thermal pipeline compensator products. It not only opens up a new field for the production of compensators, more importantly, it not only solves the fatal weakness of the working medium thrust in the pipeline, but also solves the disadvantage of by-pass tubular non-thrust compensator that the stress is too concentrated and the medium resistance is too great.
Oil-injected DC medium non-thrust compensator can be widely used in chemical industry, petroleum, thermoelectricity, metallurgy, urban central heating network, trench and overhead pipeline. At the same time, it is convenient for pipeline design, installation and construction, and saves a lot of money (only a fixed support cost savings of more than 60%). At present, the compensator has been proved to be superior to other similar products by users.
Working principle
The thrust-free compensator is based on Pascal's theory of fluid mechanics and ingeniously utilizes a closed annular chamber which has two annular compression surfaces, one is a fixed end surface of the chamber, the other is an annular surface of the shoulder of the telescopic tube enclosed in the chamber, which is movable with the telescopic tube. . When the compensator works, the pressure on the annular surface and the pressure on the cross-sectional area of the expansion pipe are equal, but the direction is opposite, so the two pressures cancel each other. In this way, the friction of the compensator packing is only considered in the design of the support, and the thrust of the fixed support caused by the working medium pressure is not calculated in the calculation of the thrust of the fixed support. Therefore, the fixed bracket is a load reducing bracket, which can save a lot of scaffold materials and save manpower and financial resources.
Main technical parameters
(1) nominal diameter of pipeline: DN25 - 1000mm
(2) applicable nominal pressure range: PN < 2.5MPa
(3) applicable working temperature: T or less than 350 C
(4) expansion: customized according to customer requirements.
When choosing the compensator, the nominal diameter DN should be taken as the criterion, the design pipe diameter should be the same as the inside and outside diameter of the parameter table, and the allowable error should be less than 3 mm. The selection compensator should be specified in the following example.
Note: Material code: BX stands for stainless steel 1Cr18N19Ti, T for carbon steel Q235-A, BXB for semi-stainless steel (telescopic tube 1Crl8N19Ti)
Main data table
公称直径 DN | 芯管内径 D1 | 芯管外径 D2 | 法兰外径 D3 | 填料室╲内径 D4 | 补偿量 △L max | 安装长度 Lmax | 填料长度 B | MAX摩擦力 Pc(N) 1.6MPa时 |
50 | 47 | 55 | 160 | 71 | 200 | 1305 | 150 | 8281 |
65 | 62 | 71 | 190 | 87 | 200 | 1305 | 150 | 10640 |
70 | 65 | 74 | 200 | 90 | 200 | 1305 | 150 | 11091 |
80 | 78 | 87 | 220 | 103 | 200 | 1305 | 150 | 12866 |
100 | 96 | 106 | 250 | 122 | 250 | 1605 | 180 | 18810 |
125 | 121 | 131 | 280 | 147 | 250 | 1605 | 180 | 23247 |
150 | 146 | 157 | 320 | 173 | 250 | 1605 | 180 | 27861 |
200 | 204 | 217 | 406 | 237 | 250 | 1605 | 180 | 38508 |
250 | 251 | 270 | 480 | 290 | 300 | 1910 | 210 | 55899 |
300 | 301 | 322 | 556 | 348 | 300 | 1910 | 210 | 66665 |
350 | 351 | 373 | 640 | 399 | 300 | 2010 | 210 | 77224 |
400 | 402 | 426 | 716 | 452 | 350 | 2310 | 230 | 95689 |
450 | 450 | 478 | 790 | 504 | 350 | 2310 | 230 | 94450 |
500 | 501 | 528 | 880 | 554 | 400 | 2600 | 250 | 113232 |
600 | 602 | 630 | 1030 | 656 | 400 | 2600 | 250 | 135016 |
700 | 692 | 720 | 1200 | 746 | 400 | 2600 | 250 | 155290 |
800 | 792 | 820 | 1340 | 852 | 450 | 2950 | 290 | 209155 |
900 | 888 | 920 | 1500 | 952 | 450 | 2950 | 290 | 230174 |
1000 | 984 | 1020 | 1640 | 1052 | 450 | 2950 | 290 | 255193 |
1200 | 1204 | 1240 | 1874 | 1274 | 450 | 290 | 269270 | |
注：当工作涅压力不是1.6MPa时，其摩擦力P1= Pc／1.6×PN | ||||||||
Installation requirements
(1) When the wall thickness of the pipe segment welded with both ends of the compensator is more than 6 mm, groove treatment must be carried out, and hydraulic leak detection test must be carried out after welding.
(2) The sliding support and the fixed support are installed according to the design, and ZTWB type is used. Except for not calculating the thrust of the working pressure of the medium, the rest are the same. In order to ensure no lateral displacement of the pipeline, and along the axial expansion, compensator should be installed at both ends of the sliding guide brackets, in the pipeline bend, must be installed fixed brackets.
(3) The insulation and protection structure of the compensator is the same as the pipeline, but it can not produce binding force on the expansion part of the expansion pipe.
(4) The compensator can be installed according to the maximum installation length of LMax at various ambient temperatures without stretching or compression.
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.：
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2、The factory can configure various types of driving devices according to customer's specific requirements.。
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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.
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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.。
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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)。
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.，
In order to further improve product quality。
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”.。
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