Floor Model Primary Pressure Balance Standards

Below is a list of basic pressure balance information on the 6 different floor model primary standard systems. Each model has a number of different sized piston-cylinder assemblies available, allowing for a variety of pressure outputs using the same weight stack. Replacement piston-cylinder assemblies are available for all models. Pistons and cylinders are not interchangeable and cannot be sold separately due the exacting tolerances required in machining.

 

DWT-1000

Piston Part NumberCylinder Part NumberMaximum PressureMinimum Pressure (Tare)Nominal Piston DiameterNominal Piston AreaNominal Area Uncertainty
B-3918C-6549200,000 psi4,000 psi0.079788″0.005 in20.0125%
B-4261C-6604120,000 psi2,400 psi0.103006″0.00833 in20.0097%
B-4263C-6563100,000 psi2,000 psi0.112838″0.01 in20.0089%
B-3920C-660160,000 psi1,200 psi0.145673″0.0166 in20.0069%
B-4265C-657050,000 psi1,000 psi0.159577″0.02 in20.0063%
B-4267C-660340,000 psi800 psi0.178412″0.025 in20.0056%
B-4269C-465330,000 psi600 psi0.206012″0.033 in20.0049%
B-4271B-427220,000 psi400 psi0.252313″0.05 in20.004%
B-4273B-427410,000 psi200 psi0.356825″0.1 in20.0028%
B-4275B-42765,000 psi100 psi0.504627″0.2 in20.002%

Supplied weights: (9) 100 lb, (4) 20 lb, (1) 10 lb, and (1) 20 lb tare weight.
 
 
DWT-500

Piston Part NumberCylinder Part NumberMaximum PressureMinimum Pressure (Tare)Nominal Piston DiameterNominal Piston AreaNominal Area Uncertainty
B-3918C-6549100,000 psi2,000 psi0.079788″0.005 in20.0125%
B-4261C-660460,000 psi1,200 psi0.103006″0.00833 in20.0097%
B-4263C-656350,000 psi1,000 psi0.112838″0.01 in20.0089%
B-3920C-660130,000 psi600 psi0.145673″0.0166 in20.0069%
B-4265C-657025,000 psi500 psi0.159577″0.02 in20.0063%
B-4267C-660320,000 psi400 psi0.178412″0.025 in20.0056%
B-4269C-465315,000 psi300 psi0.206012″0.033 in20.0049%
B-4271B-427210,000 psi200 psi0.252313″0.05 in20.004%
B-4273B-42745,000 psi100 psi0.356825″0.1 in20.0028%
B-4275B-42762,500 psi50 psi0.504627″0.2 in20.002%

Supplied weights: (9) 50 lb, (4) 10 lb, (1) 5 lb, and (1) 10 lb tare weight.
 
 
DWT-300

Piston Part NumberCylinder Part NumberMaximum PressureMinimum Pressure (Tare)Nominal Piston DiameterNominal Piston AreaNominal Area Uncertainty
B-3918C-654960,000 psi2,000 psi0.079788″0.005 in20.0125%
B-4261C-660436,000 psi1,200 psi0.103006″0.00833 in20.0097%
B-4263C-656330,000 psi1,000 psi0.112838″0.01 in20.0089%
B-3920C-660118,000 psi600 psi0.145673″0.0166 in20.0069%
B-4265C-657015,000 psi500 psi0.159577″0.02 in20.0063%
B-4267C-660312,000 psi400 psi0.178412″0.025 in20.0056%
B-4269C-46539,000 psi300 psi0.206012″0.033 in20.0049%
B-4271B-42726,000 psi200 psi0.252313″0.05 in20.004%
B-4273B-42743,000 psi100 psi0.356825″0.1 in20.0028%
B-4275B-42761,500 psi50 psi0.504627″0.2 in20.002%

Supplied weights: (14) 20 lb, (1) 10 lb, (5) 1 lb, and (1) 10 lb tare weight.
 
 
DWT-500 KG

Piston Part NumberCylinder Part NumberMaximum PressureMinimum Pressure (Tare)Nominal Piston DiameterNominal Piston AreaNominal Area Uncertainty
B-5985C-658514,000 kg/cm2300 kg/cm20.206012 cm1/30 cm20.0123%
B-5984C-661012,500 kg/cm2250 kg/cm20.225676 cm0.04 cm20.0113%
B-5983C-658610,000 kg/cm2200 kg/cm20.252313 cm0.05 cm20.0101%
B-5982C-66097,500 kg/cm2150 kg/cm20.291346 cm1/60 cm20.0087%
B-5981C-66085,000 kg/cm2100 kg/cm20.356824 cm0.1 cm20.0071%
B-5980C-66072,500 kg/cm250 kg/cm20.504627 cm0.2 cm20.005%
B-5979B-59861,000 kg/cm220 kg/cm20.797885 cm0.5 cm20.0032%

Supplied weights: (13) 10 kg, (1) 5 kg, (2) 2 kg, (1) 1 kg, and (1) 10 kg tare weight.
 
 
DWT-250 KG

Piston Part NumberCylinder Part NumberMaximum PressureMinimum Pressure (Tare)Nominal Piston DiameterNominal Piston AreaNominal Area Uncertainty
B-5985C-65857,500 kg/cm2300 kg/cm20.206012 cm1/30 cm20.0123%
B-5984C-66106,250 kg/cm2250 kg/cm20.225676 cm0.04 cm20.0113%
B-5983C-65865,000 kg/cm2200 kg/cm20.252313 cm0.05 cm20.0101%
B-5982C-66093,750 kg/cm2150 kg/cm20.291346 cm1/60 cm20.0087%
B-5981C-66082,500 kg/cm2100 kg/cm20.356824 cm0.1 cm20.0071%
B-5980C-66071,250 kg/cm250 kg/cm20.504627 cm0.2 cm20.005%
B-5979B-5986500 kg/cm220 kg/cm20.797885 cm0.5 cm20.0032%

Supplied weights: (9) 25 kg, (1) 10 kg, (2) 2 kg, (1) 1 kg, and (1) 10 kg tare weight.
 
 
DWT-150 KG

Piston Part NumberCylinder Part NumberMaximum PressureMinimum Pressure (Tare)Nominal Piston DiameterNominal Piston AreaNominal Area Uncertainty
B-5985C-65854,500 kg/cm2150 kg/cm20.206012 cm1/30 cm20.0123%
B-5984C-66103,750 kg/cm2125 kg/cm20.225676 cm0.04 cm20.0113%
B-5983C-65863,000 kg/cm2100 kg/cm20.252313 cm0.05 cm20.0101%
B-5982C-66092,250 kg/cm275 kg/cm20.291346 cm1/60 cm20.01087%
B-5981C-66081,500 kg/cm250 kg/cm20.356824 cm0.1 cm20.0071%
B-5980C-6607750 kg/cm225 kg/cm20.504627 cm0.2 cm20.005%
B-5979B-5986300 kg/cm210 kg/cm20.797885 cm0.5 cm20.0032%

Supplied weights: (13) 10 kg, (2) 5 kg, (2) 2 kg, (1) 1 kg, and (1) 5 kg tare weight.
 
 
Additional models have been made with weights measured in megadyne, as well as special models for pressures to 350,000 psi. Please contact us directly for additional information regarding our deadweight testers.