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{"title":"Dead Weight Tester (Grade II standard)","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/6a\/7c\/39ab41a5216eebcc919fa0bb8123-200x200-1\/dead_weight_tester_28grade_ii_standard_29.jpg","attrs":{"Place of Origin":"CHINA","Brand Name":"XY","Certification":"ISO90001","Model Number":"XY Series"}}
{"title":"( New rules ) piston pressure gauge vacuum","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/d6\/b5\/caeb289ec42720e8908ee7d286b6-200x200-1\/28_new_rules_29_piston_pressure_gauge_vacuum.jpg","attrs":{"Place of Origin":"CHINA","Brand Name":"XIYI","Certification":"ISO90001","Model Number":"CWZ-2.5T\uff0cCWZ-4T\uff0cCWZ-6T"}}
{"title":"( New rules )vacuum piston pressure gauge (-0.005~0.6MPa)","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/18\/36\/6756b15e38a7812a81c171792388-200x200-1\/28_new_rules_29vacuum_piston_pressure_gauge_28_0_005_7e0_6mpa_29.jpg","attrs":{"Place of Origin":"CHINA","Brand Name":"XIYI","Certification":"ISO90001","Model Number":"CWZ-2.5T\uff0cCWZ-4T\uff0cCWZ-6T"}}
{"title":"AIR- piston type pressure gauge TO UP 10MPa","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/be\/86\/7c84db43646726a7962ea901a5ee-200x200-1\/air_piston_type_pressure_gauge_to_up_10mpa.jpg","attrs":{"Place of Origin":"CHINA","Brand Name":"XIYI","Certification":"ISO90001","Model Number":"CWZ-2.5T\uff0cCWZ-4T\uff0cCWZ-6T"}}
{"title":"pneumatic piston type pressure gauges","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/67\/4a\/6fb23e7ecd4fccad612b2a393da8-200x200-1\/pneumatic_piston_type_pressure_gauges.jpg","attrs":{"Place of Origin":"CHINA","Brand Name":"XY","Certification":"ISO90001","Model Number":"Y047\/Y055\/Y055A"}}
{"title":"Dead Weight Tester (Grade II standard)","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/6a\/7c\/39ab41a5216eebcc919fa0bb8123-200x200-1\/dead_weight_tester_28grade_ii_standard_29.jpg","attrs":{"Place of Origin":"CHINA","Brand Name":"XY","Certification":"ISO90001","Model Number":"XY Series"}}
{"title":"pneumatic piston type pressure gauges","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/67\/4a\/6fb23e7ecd4fccad612b2a393da8-200x200-1\/pneumatic_piston_type_pressure_gauges.jpg","attrs":{"Place of Origin":"CHINA","Brand Name":"XY","Certification":"ISO90001","Model Number":"Y047\/Y055\/Y055A"}}
deadweight tester (DWT) is a calibration standard which uses a piston cylinder on which a load is placed to make an equilibrium with an applied pressure underneath the piston. Deadweight testers are so called primarystandards which means that the pressure measured by a deadweight tester is defined through other quantities; length, mass and time.Typically deadweight testers are used in calibration laboratories to calibrate pressure transfer standards like electronic pressure measuring devices.
Model
Measuring Range
XY 0.6
0.04-0.6Mpa
XY 6
0.1-6Mpa
XY25
0.5-25Mpa
XY 60
1-60Mpa
XY 100
1-100Mpa or 2-100Mpa
Accuracy: 0.05% ; 0.02% ; 0.015% ; 0.01%
Characteristic:
● Wide range.
● When the lower pressure is 1Mpa, the basic errors of XY6,XY60,and XY100 type dead weight tester are 0.05%.Therefore a XY100 type dead weight tester can substitute for three domestic dead weight tester with respective upper pressure 6Mpa, 60Mpa and 100Mpa.
● Piston and piston cylinder are made from WC hard metal alloy with high strength, high hardness and low linear expansion coefficient of temperature. Hence through calculating, the distortion error of piston system under pressing can be ignored. Even though the ambient temperature is widen to 20±5℃, the properties of piston gauge is still stabile.
● Because a precision furbishing process is used for the working piston and piston cylinder, the cylindricity and the gap between piston and piston cylinder are very small. Therefore giving up using castor oil with viscosity 900-11—mm2/s as pressure medium, instead using Di-(2-ethylhexyl)sebacate, which has excessively low viscosity 20-25mm2/s and is appointed as the medium in the international pressure comparison, ensure that piston gauge have the most sensitivity.
● The working position of piston is monitored by displacement sensor, which makes piston gauge more sensitive and accurate.
● Low gravity center of loads , piston rotating steadily and pressure fluctuating obscurely too much.
● Novel seal structure and excellent properties.
● Pump, pressure regulator , valve and pipe can be used conveniently because of reliability, portability and perfection.
XIYI Group Co., Ltd ( Xi'an Instrument Factory) Precision pressure gauge, stainless steel pressure gauge, pressure pump, seismic pressure gauge, piston manometer, floating ball type pressure gauge, hand pressure pump, Electric contact pressure gauges, diaphragm pressure gauges, digital pressure gauge, vacuum gauge, vacuum pressure pump,
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
20
Total Annual:
FIFTY-million
Employee Number:
5000~PERSON
Ecer Certification：
Active Member
XI YI GROUP CO. LTD ( Xi'an Instrument Factory )
I .Outline:
Establishing: 1954 ; Building:1957 ; Putting into production: 1960
Total capital: 335 million CNY ; Number of staff and worker: 2898
Occupied Area: 340,000M2
Other : XiYi prossesses of a te...
XI YI GROUP CO. LTD ( Xi'an Instrument Factory )
I .Outline:
Establishing: 1954 ; Building:1957 ; Putting into production: 1960
Total capital: 335 million CNY ; Number of staff and worker: 2898
Occupied Area: 340,000M2
Other : XiYi prossesses of a te...
