704-399-4248 sales@sethermal.com

MEDIUM PRESSURE SMOOTH BORE HOSE

Our industry standard is CH67. It has been widely specified for an endless variety of applications including automotive, food processing, pharmaceutical, chemical and petrochemical.

Our hoses can be found in factories, on trucks and buses, on automobiles (both on and off road), in laboratories, and in endless manufacturing situations; anywhere that the limitations of rubber, metal and synthetic hoses make PTFE hose the only solution.

Some applications require a conductive inner liner to dissipate static electrical charges. High resistivity fluids or gases at height velocities cause positive electrical charges to build on the inside of the PTFE liner. If not dissipated to the end of the hose, the charge will build until
it arcs through the tube wall to the braid, causing catastrophic hose failure. To alleviate this, Conrad manufactures a heated hose assembly with a thin conductive liner on the inside diameter.

Temperature Range:

-100ºF to 500ºF (-73ºC to 260º) Intermittent Service

-65ºF to 450ºF (-54ºC to 232º) Continuous Service

GENERAL PURPOSE SMOOTH BORE PTFE HOSE MEETS OR EXCEEDS SAE 100R14
SPECIFICATIONS 

STANDARD SIZES:

CH67 – .030″ tube wall, non-conductive virgin PTFE tubing, over braided with 300 series stainless steel wire.

CH70 – .030″ tube wall, conductive lined, virgin PTFE tubing, over
braided with 300 series stainless steel wire.

Hose P/N Non
Conductive
Hose P/N
Conductive
Nominal
Hose Size
Average
I.D. (In)
Operating
Pressure
(PSI)
Burst
Pressure
(PSI)
Bend
Radius
(In)
CH67-03 CH70-03 3/16 .125 3000 12000 2
CH67-04 CH70-04 1/4 .187 3000 12000 2
CH67-05 CH70-05 5/16 .250 3000 12000 3
CH67-06 CH70-06 3/8 .312 2500 10000 4
CH67-07 CH70-07 7/16 .375 2250 9000 4.5
CH67-08 CH70-08 1/2 .405 2000 8000 5.2
CH67-10 CH70-10 5/8 .500 1500 6000 6.5
CH67-12 CH70-12 3/4 .625 1200 4800 7.7
CH67-14 CH70-14 7/8 .750 1100 4400 8.2
CH67-16 CH70-16 1 .875 1000 4000 9
CH67-18 CH70-18 1-1/8 1.000 900 3600 10
CH67-20 CH70-20 1-1/4 1.125 750 3000 16

 

Calculators

Power Flow Rate Temp Calculator

Calculate the electrical power, flow rate or temperature requirement.
airflow in standard cubic feet per minute
temperature rise in degrees F from the inlet to the exhaust
Watts = SCFM x ΔT/2.5

Temperature Conversion Calculator

Calculate the electrical power, flow rate or temperature requirement.
°F = ((( °C * 9) / 5 ) + 32)
°C = ((( °F - 32) * 5 ) / 9)

Three-Phase Unit Calculator

Fill in two values to find the 3rd.
W = LC * (V * √2)
V = (W / LC) / √2
LC = W / (V * √2)

Single Phase Unit Calculator

Fill in two values to find the 3rd.
W = LC * V
V = LC * W
LC = W / V

Ohms Law Calculator

Fill in two values to find the other two.

O = V / A

O = V² / W

O = W / A²

V = A * O = A * (V/A)

V = √(W * O)

V = W / A

A = V / O

A = W/ V

A = √(W / O)

W = A * V

W = V² / O

W = A² * O

Heat Transfer Through Convection Calculator

ρ = density (lb/ft3)

V = volume flow rate (ft3/hour)

Cp = specific heat (Btu/lb°F)

Ta-Tb = temperature differential (°F)

Q = ρ x V x Cp x (Ta-Tb)


Fill in four values

ρ = density (lb/ft3)
V = volume flow rate (ft3/hour)
Cp = specific heat (Btu/lb°F)
Ta-Tb = TD (°F)
Q = ρ x V x Cp x (Ta-Tb)

ACFM to SCFM

ACFM = airflow in actual cubic feet per minute

P = gage pressure (psi)

T = gas temperature °R = 460 + °F

SCFM = airflow in standard cubic feet per minute


Find Standard Cubic Feet per Minute based on data from your Actual Cubic Feet per Minute Rotameter

airflow in actual cubic feet per minute
gage pressure (psi)
gas temperature °R = 460 + °F
airflow in standard cubic feet per minute

Standard Flow Rate (SCFM) Calculator

Calculate the SCFM.
Actual cubic feet per minute
Actual pounds per square inch at Gauge
Actual temperature in °F. °R = 460 + °F
CFM * (PSI actual / 14.7psi)*(528°R / T actual)

Pressure Conversion

Fill in one value to calculate the other.
PSI = Bar * 14.504
Bar = PSI / 14.504

Mass Flow to volume Metric Flow

Fill in one value to calculate the other two
kg/h = Kilogram Per Hour (lb/min multiply by 27.216)
Lbs/min = Pounds per minute (kg/h divide by 27.216)
SCFM = Standard cubic feet per minute

Power Flow Rate Temp Calculator

Calculate the electrical power, flow rate or temperature requirement.
airflow in standard cubic feet per minute
temperature rise in degrees F from the inlet to the exhaust
Watts = SCFM x ΔT/2.5

Temperature Conversion Calculator

Calculate the electrical power, flow rate or temperature requirement.
°C = ((( °F - 32) * 5 ) / 9)
°F = ((( °C * 9) / 5 ) + 32)

Three-Phase Unit Calculator

Fill in two values to find the 3rd.
W = LC * (V * √2)
V = (W / LC) / √2
LC = W / (V * √2)

Single Phase Unit Calculator

Fill in two values to find the 3rd.
W = LC * V
V = LC * W
LC = W / V

Ohms Law Calculator

Fill in two values to find the other two.

O = V / A

O = V² / W

O = W / A²

V = A * O = A * (V/A)

V = √(W * O)

V = W / A

A = V / O

A = W/ V

A = √(W / O)

W = A * V

W = V² / O

W = A² * O

Heat Transfer Through Convection Calculator

ρ = density (lb/ft3)

V = volume flow rate (ft3/hour)

Cp = specific heat (Btu/lb°F)

Ta-Tb = temperature differential (°F)

Q = ρ x V x Cp x (Ta-Tb)


Fill in four values

ρ = density (lb/ft3)
V = volume flow rate (ft3/hour)
Cp = specific heat (Btu/lb°F)
Ta-Tb = TD (°F)
Q = ρ x V x Cp x (Ta-Tb)

ACFM to SCFM

ACFM = airflow in actual cubic feet per minute

P = gage pressure (psi)

T = gas temperature °R = 460 + °F

SCFM = airflow in standard cubic feet per minute


Find Standard Cubic Feet per Minute based on data from your Actual Cubic Feet per Minute Rotameter

airflow in actual cubic feet per minute
gage pressure (psi)
gas temperature °R = 460 + °F
airflow in standard cubic feet per minute

Standard Flow Rate (SCFM) Calculator

Calculate the SCFM.
Actual cubic feet per minute
Actual pounds per square inch at Gauge
Actual temperature in °F. °R = 460 + °F
CFM * (PSI actual / 14.7psi)*(528°R / T actual)

Pressure Conversion

Fill in one value to calculate the other.
PSI = Bar * 14.504
Bar = PSI / 14.504

Mass Flow to volume Metric Flow

Fill in one value to calculate the other two
Kg/h = Kilogram Per Hour (lb/min multiply by 27.216)
Lbs/min = Pounds per minute (kg/h divide by 27.216)
SCFM = Standard cubic feet per minute