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Balun Technology Co., Ltd
Catalog excerpts
The BL502 Pneumatic Deadweight Tester is a high-precision primary standard device used for defining pressure scales within a pneumatic range of 5 kPa to 10 MPa. The tester's core component, the piston-cylinder assembly, ensures exceptional accuracy due to its construction from tungsten carbide, which minimizes pressure distortion and provides stability and durability. The low friction coefficient allows the masses to rotate smoothly for several minutes with minimal input. High Accuracy: Available in 0.005%, 0.01%, 0.02%, and 0.05% accuracy options Consistent accuracy across both the lower and upper limits of the pressure range Tungsten carbide piston and cylinder for excellent stability, durability, and minimal thermal expansion or distortion Low pressure ( ≤ 700 kPa) applied by built-in hand pump; High pressure (>700 kPa) applied via external gas supply Precision needle valves for optimal control and tight sealing (0.01 μm) for enhanced air quality Optional ISO17025 accredited calibration Primary Pressure Standard in laboratories Reference Pressure Measurement in workshops and industrial settings Accuracy Options: 0.05%, 0.02%, 0.01%, 0.005% Balun Technology Co., Ltd Add: 1322, F/3, Bldg 1, 33 Zique Rd, Haidian, Beijing100095, China Piston & Cylinder Material: Tungsten Carbide Mass Material: 304 Stainless Steel Pipeline Material: 316L Stainless Steel Base Material: 304 Stainless Steel Seal Material: Buna-N, PTFE, Cu Alloy Medium: Dry air ( ≤ 700 kPa) or pure nitrogen (>700 kPa) Gravity: Standard gravity of 9.80665 m/s² (customized local gravity available) Pressure Units: MPa, bar, psi (customizable) Pressure Connector: Metric (optional NPT and BSP) Base Dimensions: 185 mm (H) x 455 mm (L) x 380 mm (D) Base Weight: Approximately 15 kg PRESSURE RANGE SELECTABLE SHEET PART # BL502 Pneumatic deadweight tester base Piston cylinder unit 304 stainless steel mass set Mass carrier or bell User manual Transit case OPTIONAL ACCESSORIES AND SERVICES ■ ■ ■ ■ ■ ■ ■ ■ ■ Electric Pressure Pump (P/N: 1541) 10 MPa Absolute Pressure Chamber (P/N: 1559) Pressure Reducer Valve with Pipe (P/N: 1543) Molecular Filter for Input Air (P/N: 1554) Liquid-Gas Filter for Return Line (P/N: 1555) Liquid-Gas Separator Filter for 10 MPa (P/N: 1556) Trim Mass Set (P/N: F2-50GSET-304) Forged 316 Stainless Steel Mass Set (P/N: MS-316) BL502 / part number / accu
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