HL Deadweight Tester


The HydraLite Tester is a primary standard available as a dead weight tester or a gauge.  Both feature a re-entrant type measuring piston and cylinder assembly.  This design reduces the rate of fluid leakage and increases float time, helping to maintain accuracy as test pressures increase.  Each tester features an easy-to-use, convenient screw pump as the pressure source, which contains a ratchet feature that prevents the unit from depressurizing unexpectedly.

• Accuracy to 0.05% of reading
• Ranges to 3000 psi
• Available in psi, kg/cm², bar, and kPa
• Dual piston models extend the range of single weight sets

Designed for lab or field use, each tester is completely self-contained within the cover of the unit. 

• Overhung weight carrier reduces side thrust and friction
• Quick-leveling system for field use
• Optional Tripod
• Over-pressure protection prevents piston damage

210 to 200 psi
410 to 400 psi
610 to 600 psi
1050 to 1,000 psi
2050 to 2,000 psi
3050 to 3,000 psi
1210 to 200 psi & 50 to 1,000 psi
2410 to 400 psi & 50 to 2,000 psi
3610 to 600 psi & 50 to 3,000
/C ±0.1% of reading With data
-1/C±0.05% of reading With data
Standard± 0.1% of reading Without Data
T-536 Rebuild Kit (Buna N)
MGAA/QTTester Oil (1 quart)
MGAA/GLTester Oil (1 gallon)
99-90019Oil Dispenser
11-90009 1/4” Male NPT x 1/2” Female NPT Adapter
T-786 1/4” Male NPT x 1/4” Female BSP Adapter
T-7871/4” Male NPT x 1/2” Female BSP Adapter
60I104Roll of Teflon Tape
1015491/2” Bonded Seal
60R120 1/4” Bonded Seal
60R122 1/8” Bonded Seal
K-1562 Tripod
1GT-99 Gauge Pointer Puller Set
T-535 Converts the Hydralite gauge into a Hydralite tester

Data Sheets
HL Datasheet

HL Manual