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Quick Details

  • Place of Origin: Shaanxi, China (Mainland)
  • Brand Name: Yunyi, Yunyi
  • Model Number: DK, DK
  • Ambient temperature: 30 °C ~ 80 °C
  • Delivery time: 5-7 days
  • Port: shenzhen, beijing, tianjin, shanghai
  • Warranty: 12 months
  • Original: china, xian

Packaging & Delivery

Packaging Details: Corrugated cardboard boxes outer and foam paper inner packing size: 4x5x14cm
packed according to the clients' requirements
Delivery Detail: Shipped in 7 days after payment
  Dk Piston type Dead Weight Tester




Description of Dk Piston type Dead Weight Tester :

DK series piston type pressure gauge is in our factory YS series piston manometer, KY series piston type pressure gauge, on the basis of structural optimization, with super abrasion and perfect reliability.DK series piston pressure gauge the progress of 0.005%;160 mpa. The maximum range of DK series adopts modular structure, a platform can install different piston system, achieve the goal of economical and practical.

Features of Dk Piston type Dead Weight Tester :
1,Modularity: Piston and pressure generator system is fully modular structure, the various
modules can implement a single function or a combination of work
2,Stability: hydraulic piston using low weights to ensure high reliability and stability.
3, Interchangeability: - any piston - sleeve unit
4,Piston - sleeve unit: made of tungsten carbide materials; other parts made of high quality
austenitic stainless steel, which can effectively prevent deformation. There are six ranges for choose 

5,Weight: Adopts demagnetization quality austenitic stainless steel
6,Rotational speed: in free rotation state, the rotational speed is related to the time, e.g. 60MPa
product, after 30 minutes, the rotational speed is from the initial speed of the drops 33.0RPM to
24.8rpm. This also shows that the piston - sleeve gap pressure distribution is uniform.
7,Effective area: under normal atmospheric pressure and 20 ℃ conditions, the piston - the
average effective area of the cartridge unit, and pressure deformation coefficient can be measured by
the reference gauge
8,Piston descending speed: in the range of 60MPa case, the relationship between the piston speed
and the pressure drop is shown below. In the range of 100MPa case for all of the components, the

rate of decline and the effective piston area of pressure become a linear relationship, the maximum
rate of decline is less than 5μm/s. Maximum effective area changes is less than 0.0006mm2.



Parameters of Dk Piston type Dead Weight Tester:

DKHH uncertainty :0.005%rdg( Medium: sebacic acid ester )











DKHH uncertainty :0.02%rdg ( Medium: sebacic acid ester )











DKHH uncertainty :0.05%rdg ( Medium: sebacic acid ester )











DKHH uncertainty :0.02%rdg ( Medium: sebacic acid ester )









DKHH uncertainty :0.05%rdg ( Medium: distilled water )










The most important is that we have Trade Assyrance Survice as follows:


2.product picture




3.quality control











5.our company

   Xi 'an YunYi instrument co., LTD. (YunYi group) its subsidiaries respectively : valve factory, pressure factory, meter factory of eight subsidiaries, such as annual sales into the billions.Xi 'an YunYi group pressure gauge factory mainly produces all kinds of pressure gauges, including precision pressure gauge, electric contact pressure gauge, explosion-proof pressure gauge, etc., in the field of pressure measurement gauge of factory products by the vast number of measuring workers also mainly include all kinds of pressure source, JY series piston type pressure gauge, pressure gauge calibration apparatus, etc Xi 'an YunYi group valve factory is the most important and largest national gate valve, globe valve, ball valve, butterfly valve, hydraulic control valves such as general supplier of valve.In petroleum, chemical industry, metallurgy, electric power, building, heating, water supply and other industries with high visibility and influence.Products have been in short supply, precision casting, hot forging, heat treatment, welding, metal cutting processing, machining, assembly, performance test and so on more than ten workshop;With forging casting practice, special valves, three big series more than one thousand specifications varieties best-selling products at home and abroad market Xi 'an YunYi corp. 's operating the xi 'an instrument main instrument is committed to providing more information to provide one-stop solution for prerequisite.




6.our services

OEM & Customize

We support OEM service, you can make goods according to your samples , color, material and so on for the custom. 

Online Service

It is a twenty-four-hour service that allows you to send information at any time of the day or night.we will reply within 12 hours. 

Design Team 

we have design team  to make customized products , you can  send your  samples  or drawing  to us  and our team  will  make samples for you  . also  we can design products  according  to your  description. 

Easy Payments

We accept all kinds of  payment terms  like L/C T/T ,we protect all buyers .ensure that no risk to do business with us .




7.contact us





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China (Mainland) | Manufacturer, Trading Company
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The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $37,000
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