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 Number Cylinder Part Number Maximum Pressure Minimum Pressure (Tare) Nominal Piston Diameter Nominal Piston Area Nominal Area Uncertainty
B-3918 C-6549 200,000 psi 4,000 psi 0.079788″ 0.005 in2 0.0125%
B-4261 C-6604 120,000 psi 2,400 psi 0.103006″ 0.00833 in2 0.0097%
B-4263 C-6563 100,000 psi 2,000 psi 0.112838″ 0.01 in2 0.0089%
B-3920 C-6601 60,000 psi 1,200 psi 0.145673″ 0.0166 in2 0.0069%
B-4265 C-6570 50,000 psi 1,000 psi 0.159577″ 0.02 in2 0.0063%
B-4267 C-6603 40,000 psi 800 psi 0.178412″ 0.025 in2 0.0056%
B-4269 C-4653 30,000 psi 600 psi 0.206012″ 0.033 in2 0.0049%
B-4271 B-4272 20,000 psi 400 psi 0.252313″ 0.05 in2 0.004%
B-4273 B-4274 10,000 psi 200 psi 0.356825″ 0.1 in2 0.0028%
B-4275 B-4276 5,000 psi 100 psi 0.504627″ 0.2 in2 0.002%

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

Piston Part Number Cylinder Part Number Maximum Pressure Minimum Pressure (Tare) Nominal Piston Diameter Nominal Piston Area Nominal Area Uncertainty
B-3918 C-6549 100,000 psi 2,000 psi 0.079788″ 0.005 in2 0.0125%
B-4261 C-6604 60,000 psi 1,200 psi 0.103006″ 0.00833 in2 0.0097%
B-4263 C-6563 50,000 psi 1,000 psi 0.112838″ 0.01 in2 0.0089%
B-3920 C-6601 30,000 psi 600 psi 0.145673″ 0.0166 in2 0.0069%
B-4265 C-6570 25,000 psi 500 psi 0.159577″ 0.02 in2 0.0063%
B-4267 C-6603 20,000 psi 400 psi 0.178412″ 0.025 in2 0.0056%
B-4269 C-4653 15,000 psi 300 psi 0.206012″ 0.033 in2 0.0049%
B-4271 B-4272 10,000 psi 200 psi 0.252313″ 0.05 in2 0.004%
B-4273 B-4274 5,000 psi 100 psi 0.356825″ 0.1 in2 0.0028%
B-4275 B-4276 2,500 psi 50 psi 0.504627″ 0.2 in2 0.002%

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

Piston Part Number Cylinder Part Number Maximum Pressure Minimum Pressure (Tare) Nominal Piston Diameter Nominal Piston Area Nominal Area Uncertainty
B-3918 C-6549 60,000 psi 2,000 psi 0.079788″ 0.005 in2 0.0125%
B-4261 C-6604 36,000 psi 1,200 psi 0.103006″ 0.00833 in2 0.0097%
B-4263 C-6563 30,000 psi 1,000 psi 0.112838″ 0.01 in2 0.0089%
B-3920 C-6601 18,000 psi 600 psi 0.145673″ 0.0166 in2 0.0069%
B-4265 C-6570 15,000 psi 500 psi 0.159577″ 0.02 in2 0.0063%
B-4267 C-6603 12,000 psi 400 psi 0.178412″ 0.025 in2 0.0056%
B-4269 C-4653 9,000 psi 300 psi 0.206012″ 0.033 in2 0.0049%
B-4271 B-4272 6,000 psi 200 psi 0.252313″ 0.05 in2 0.004%
B-4273 B-4274 3,000 psi 100 psi 0.356825″ 0.1 in2 0.0028%
B-4275 B-4276 1,500 psi 50 psi 0.504627″ 0.2 in2 0.002%

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

Piston Part Number Cylinder Part Number Maximum Pressure Minimum Pressure (Tare) Nominal Piston Diameter Nominal Piston Area Nominal Area Uncertainty
B-5985 C-6585 14,000 kg/cm2 300 kg/cm2 0.206012 cm 1/30 cm2 0.0123%
B-5984 C-6610 12,500 kg/cm2 250 kg/cm2 0.225676 cm 0.04 cm2 0.0113%
B-5983 C-6586 10,000 kg/cm2 200 kg/cm2 0.252313 cm 0.05 cm2 0.0101%
B-5982 C-6609 7,500 kg/cm2 150 kg/cm2 0.291346 cm 1/60 cm2 0.0087%
B-5981 C-6608 5,000 kg/cm2 100 kg/cm2 0.356824 cm 0.1 cm2 0.0071%
B-5980 C-6607 2,500 kg/cm2 50 kg/cm2 0.504627 cm 0.2 cm2 0.005%
B-5979 B-5986 1,000 kg/cm2 20 kg/cm2 0.797885 cm 0.5 cm2 0.0032%

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 Number Cylinder Part Number Maximum Pressure Minimum Pressure (Tare) Nominal Piston Diameter Nominal Piston Area Nominal Area Uncertainty
B-5985 C-6585 7,500 kg/cm2 300 kg/cm2 0.206012 cm 1/30 cm2 0.0123%
B-5984 C-6610 6,250 kg/cm2 250 kg/cm2 0.225676 cm 0.04 cm2 0.0113%
B-5983 C-6586 5,000 kg/cm2 200 kg/cm2 0.252313 cm 0.05 cm2 0.0101%
B-5982 C-6609 3,750 kg/cm2 150 kg/cm2 0.291346 cm 1/60 cm2 0.0087%
B-5981 C-6608 2,500 kg/cm2 100 kg/cm2 0.356824 cm 0.1 cm2 0.0071%
B-5980 C-6607 1,250 kg/cm2 50 kg/cm2 0.504627 cm 0.2 cm2 0.005%
B-5979 B-5986 500 kg/cm2 20 kg/cm2 0.797885 cm 0.5 cm2 0.0032%

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 Number Cylinder Part Number Maximum Pressure Minimum Pressure (Tare) Nominal Piston Diameter Nominal Piston Area Nominal Area Uncertainty
B-5985 C-6585 4,500 kg/cm2 150 kg/cm2 0.206012 cm 1/30 cm2 0.0123%
B-5984 C-6610 3,750 kg/cm2 125 kg/cm2 0.225676 cm 0.04 cm2 0.0113%
B-5983 C-6586 3,000 kg/cm2 100 kg/cm2 0.252313 cm 0.05 cm2 0.0101%
B-5982 C-6609 2,250 kg/cm2 75 kg/cm2 0.291346 cm 1/60 cm2 0.01087%
B-5981 C-6608 1,500 kg/cm2 50 kg/cm2 0.356824 cm 0.1 cm2 0.0071%
B-5980 C-6607 750 kg/cm2 25 kg/cm2 0.504627 cm 0.2 cm2 0.005%
B-5979 B-5986 300 kg/cm2 10 kg/cm2 0.797885 cm 0.5 cm2 0.0032%

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.