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Standard Screw Plug Immersion Heaters

<–1″ & 1 1/4″ Screw Plug Heaters

Screw Plug Immersion Heaters ->

2 inch npt screw plug immersion heaters
Plug Material
E
F
H
Brass
1 ¼
3⁄8
1 ¾
Steel & Stainless
1 ⅜
9⁄16
1 ¾
23 Watts/Sq. Inch – 3 elements
Immersed
Length “B”
KW
Volts
Net
Wt.
(lbs.)
11 ⅞
2.25
240
480
9
17 ½
3
240
480
9
19 ¾
3.75
240
480
10
24 ⅝
4.5
240
480
10
32 ⅝
6
240
480
12
40 ¼
7.5
240
480
13
47 ½
9
240
480
15
51 ⅜
10
240
480
16
64 ½
12.5
240
480
18
77 ½
15
240
480
21
48 Watts/Sq. Inch – 3 elements
Immersed
Length “B”
KW
Volts
Net
Wt.
(lbs.)
8 ¼
3
240
480
8
9 ¾
3.75
240
480
9
12 ¼
4.5
240
480
9
17 ½
6
240
480
9
19 ¼
7.5
240
480
10
24 ⅝
9
240
480
10
32 ½
12
240
480
12
40 ¼
15
240
480
13
47 ½
18
240
480
15
51 ⅜
20
240
480
16
23 Watts/Sq. Inch – 2 elements
Immersed
Length “B”
KW
Volts
Net
Wt.
(lbs.)
11 ⅞
1.5
240
480
7
17 ½
2
240
480
8
19 ¾
2.5
240
480
8
24 ⅝
3
240
480
9
32 ½
4
240
480
9
40 ⅛
5
240
480
11
47 ⅜
6
240
480
11
48 Watts/Sq. Inch – 2 elements
Immersed
Length “B”
KW
Volts
Net
Wt.
(lbs.)
8 ¼
2
240
480
7
9 ¾
2.5
240
480
7
12 ¼
3
240
480
7
17 ½
4
240
480
8
19 ¼
5
240
480
8
24 ⅝
6
240
480
9
32 ⅜
8
240
480
9
40 ¼
10
240
480
11
47 ½
12
240
480
11
NEMA 1 with Thermostat
Range
Rating
No.
Poles
0-100°F
25 Amp @ 277 V
2
60-250°F
25 Amp @ 277 V
2
150-550°F
25 Amp @ 277 V
2
Moisture Resistant Housing with Thermostat
Range
Rating
No.
Poles
0-100°F
25 Amp @ 277 V
2
60-250°F
25 Amp @ 277 V
2
150-550°F
25 Amp @ 277 V
2
Moisture / Explosion Resistant Housing
Catalog Number N4/7
Explosion Resistant Housing with Thermostat
Range
Rating
No.
Poles
Cat.
No.
0-100°F
25 Amp @ 277 V
2
N7T4
60-250°F
25 Amp @ 277 V
2
N7T5
150-550°F
25 Amp @ 277 V
2
N7T6

 

2 ½ inch NPT Screw Plug Immersion
Plug Material
E
F
H
Brass
2 1⁄16
3⁄4
3
Steel & Stainless
2 1⁄6
3⁄4
3

3 Elements – Three Phase
* May be rewired to single phase where less than 45 AMPS per line.

23 Watts/Sq. Inch – 3 elements
Immersed
Length “B”
KW
Volts
Net
Wt.
(lbs.)
11 ⅝
2.25
240
480
9
17 ⅛
3
240
480
9
19 ½
3.75
240
480
9
24 ⅜
4.5
240
480
10
32 ⅜
6
240
480
12
39 ⅝
7.5
240
480
13
47 ⅛
9
240
480
15
51 ⅛
10
240
480
16
64 ⅛
12.5
240
480
19
77 ⅛
15
240
480
22

*May be rewired single phase where less than 45 AMPS per line

48 Watts/Sq. Inch – 3 elements
Immersed
Length “B”
KW
Volts
Net
Wt.
(lbs.)
8
3
240
480
8
9 ½
3.75
240
480
9
12
4.5
240
480
9
17 ¼
6
240
480
9
19
7.5
240
480
10
24 ⅜
9
240
480
10
32 ⅛
12
240
480
12
39 ⅞
15
240
480
13
47 ¼
18
240
480
15
51 ⅛
20
240
480
16

*May be rewired single phase where less than 45 AMPS per line.

NEMA 1 with Thermostat
Range
Rating
No.
Poles
0-100°F
25 Amp @ 277 V
2
60-250°F
25 Amp @ 277 V
2
150-550°F
25 Amp @ 277 V
2
Moisture Resistant Housing with Thermostat
Range
Rating
No.
Poles
0-100°F
25 Amp @ 277 V
2
60-250°F
25 Amp @ 277 V
2
150-550°F
25 Amp @ 277 V
2
Moisture / Explosion Resistant Housing
Catalog Number N4/7

 

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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