Hydraulic Pressure Dead weight Tester

BL511 Hydraulic Pressure Dead weight Tester

BL511 Hydraulic Pressure Deadweight Tester

With 0.01% of reading accuracy, pressure ranges from 40kPa to 250MPa, the model BL511 hydraulic deadweight testers are applicable in very wide variety of pressure calibration and measurement tasks.

The piston cylinder assembly is the heart of the dead weight tester and responsible for its high accuracy. We manufacture piston cylinder with accuracies from 0.05% up to 0.005% of reading. To give an idea of the manufacturing skills, the space between the piston and the cylinder is in the um range and can only be measured in a climate room.

Overview

Accuracy is 0.05%rdg, 0.02%rdg, 0.01%rdg
Pressure ranges from 40kPa to 250MPa
The piston and cylinder are made of the high intensity, extreme hardness and lowest thermal expansion tungsten carbide
Piston/cylinder design provides stability and repeatability
Piston rod is anti-broken structure
Piston location is ± 1.5 mm
Piston rotation speed is (30-60) r/min
Mass w/ plate carriers make stable rotation
Modularized design, use friendly

Application

Primary pressure standards in laboratories
Reference instruments on the workshop.

Specification

Model	BL511
Accuracy	0.01%rdg, 0.02%RD, 0.05%RD
Piston material	Tungsten carbide
Cylinder material	Tungsten carbide
Mass material	Forged 316 stainless steel
Hydraulic base material	Aluminium
Seal material	Buna-N, FTM, PTFE, Cu Alloy
Fluid	Mineral Oil(<25MPa); Sebacate (≥25MPa)
Gravity	Standard 9.80665 m/s² or customize local gravity
Pressure units	MPa, bar, psi (optional)
Connector	Metric, (NPT and BSP is optional)
Base dimension	225 mm (H) x 455 mm (L) x 380 mm (D)
Tester net weight	Appr.18kg
Warranty	2 years

Pressure Selectable Sheet

P/N	Pressure Range	Kn	Effective Area	Mass Set
KY0	(0.04~0.6) MPa	0.1MPa/kg	1cm2	6kg
KY1	(0.04~1) MPa	0.1MPa /kg	1cm2	10kg
KY6	(0.1~6) MPa	0.5MPa /kg	0.2 cm2	12kg
KY25	(0.5~25) MPa	1MPa /kg	0.1 cm2	25kg
KY60	(1~60) MPa	2MPa/kg	0.05 cm2	30kg
KY70	(1~70) MPa	2MPa/kg	0.05 cm2	35kg
KY100	(1~100) MPa	2MPa/kg	0.05 cm2	50kg
KY160	(2~160) MPa	2MPa/kg	0.05 cm2	80kg
KY250	(5~250) MPa	5MPa/kg	0.02 cm2	50kg

Ordering info and accessories

Scope of delivery

BL511 Hydraulic deadweight tester base
Piston cylinder module
“MPa” pressure units 316SS increment mass set
Adapter kits (1/4NPT, ½NPT, ¼G, ½G)
Factory calibration report

Optional Accessories

Customized “psi” unit 316SS mass set (P/N: IMS-PSI)
CNAS accredited calibration certificate (P/N:9000-511)
Oil-Water Separator, 40 MPa, no diaphragm (P/N: 1556-40)
Oil-Water Separator, 70 MPa, no diaphragm (P/N: 1556-70)

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