2” npt screw plug immersion heater, Two element design - one phase only, Standard (sp series) – ASB Heating Elements Ltd. 2” NPT Screw Plug Immersion Heater User Manual
Page 2: With thermostat (asp series), Optional thermostats, 25 watts/in, Steel sheath, 12 watts/in, Incoloy sheath
2” NPT Screw Plug Immersion Heater
Two element design - one phase only
5
1/4"
ap
pro
x.
2
3/4"
1
1/4"
NPT opening
5
1/4"
4
1/4"
dia.
3"
ap
pro
x.
2
5/16"
1" NPT opening
4
1/2"
3
1/2"
dia.
Figure 75
5
5/16
"
ap
pro
x.
3
13/16
"
1
1/2"
NPT opening
6
13/16"
5
3/4"
dia.
2
13
/
16
"
3
1/2
"
4
1/8
"
4
3/4
"
4
5/16
"
4
1/4
"
Standard (SP series)
General Purpose Enclosure - no thermostat
With thermostat (ASP series)
General Purpose Enclosure - with thermostat
Moisture Resistant or Hazardous Location
Moisture Resistant or Hazardous Location - ASP series
with any optional thermostat
Moisture Resistant Enclosure (add suffix MR)
Hazardous Location (Explosion Resistant add suffix ER)
Non-Thermostat version - (NEMA 4 or NEMA 7)
Moisture Resistant Enclosure (add suffix MR)
Hazardous Location (Explosion Resistant add suffix ER)
DPST or TPST
(NEMA 4 or NEMA 7)
10 - 120°C (50 - 250°F)
240 vac, 25 amp, SPST
Figure 72
Figure 73
Figure 74
Optional Thermostats
Available temperature ranges and/or electrical choices
Temperature ranges
Electrical ranges
-16 to + 40°C (0-100°F)
240 vac, 25 amp, DPST
70 - 280°C (160 - 540°F)
480 vac, 15 amp, TPST
160 - 370°C (320-700°F)
600 vac, 15 amp, TPST
ASP series
Built-in Thermostat SPST
(NEMA 4 or NEMA 7)
SP series
25 watts/in
2
Steel Sheath
Typically to heat:
2” steel screw plug
light oils
2 elements - up to 600 volts 1 phase
(specifiy voltage when ordering)
watts
immersed
catalogue number
net
length
Fig. 72
Fig. 73
weight
B dim.
standard
with thermostat
(lb)
750
6
1
/
2
SPO-2007
ASPO-2007
6
1000
7
1
/
2
SPO-2010
ASPO-2010
6
1250
9
1
/
2
SPO-2012
ASPO-2012
6
1500
11
1
/
2
SPO-2015
ASPO-2015
7
2000
17
3
/
4
SPO-2020
ASPO-2020
7
2500
19
SPO-2025
ASPO-2025
7
3000
24
1
/
2
SPO-2030
ASPO-2030
8
3500
28
SPO-2035
ASPO-2035
8
4000
32
1
/
2
SPO-2040
ASPO-2040
9
5000
39
3
/
8
SPO-2050
ASPO-2050
9
6000
47
1
/
4
SPO-2060
ASPO-2060
10
7000
54
SPO-2070
ASPO-2070
10
watts
immersed
catalogue number
net
length
Fig. 72
Fig. 73
weight
B dim.
standard
with thermostat
(lb)
350
6
1
/
2
SPOL-2003
ASPOL-2003
6
500
7
1
/
2
SPOL-2005
ASPOL-2005
6
635
9
1
/
2
SPOL-2006
ASPOL-2006
6
750
11
1
/
2
SPOL-2007
ASPOL-2007
7
1000
17
3
/
4
SPOL-2010
ASPOL-2010
7
1250
19
SPOL-2012
ASPOL-2012
7
1500
24
1
/
2
SPOL-2015
ASPOL-2015
8
1750
28
SPOL-2017
ASPOL-2017
8
2000
32
1
/
2
SPOL-2020
ASPOL-2020
9
2500
39
3
/
8
SPOL-2025
ASPOL-2025
9
3000
47
1
/
4
SPOL-2030
ASPOL-2030
10
3500
54
SPOL-2035
ASPOL-2035
10
watts
immersed
catalogue number
net
length
Fig. 72
Fig.73
weight
B dim.
standard
with thermostat
(lb)
750
6
1
/
2
SPA-2007
ASPA-2007
6
1000
7
1
/
2
SPA-2010
ASPA-2010
6
1250
9
1
/
2
SPA-2012
ASPA-2012
6
1500
11
1
/
2
SPA-2015
ASPA-2015
7
2000
17
3
/
4
SPA-2020
ASPA-2020
7
2500
19
SPA-2025
ASPA-2025
7
3000
24
1
/
2
SPA-2030
ASPA-2030
8
3500
28
SPA-2035
ASPA-2035
8
4000
32
1
/
2
SPA-2040
ASPA-2040
9
5000
39
3
/
8
SPA-2050
ASPA-2050
9
6000
47
1
/
4
SPA-2060
ASPA-2060
10
7000
54
SPA-2070
ASPA-2070
10
12 watts/in
2
Steel Sheath
Typically to heat:
2” steel screw plug
hydraulic oils,
2 elements - up to 600 volts 1 phase
heavy oils
(specifiy voltage when ordering )
25 watts/in
2
Incoloy Sheath
Typically to heat:
2” steel screw plug
light oils,
2 elements - up to 600 volts 1 phase mild caustic solution
(specifiy voltage when ordering )
mild alkaline solution
Figure 76
B4