ASB Heating Elements Ltd. 1 1_4” NPT Screw Plug Immersion Heater User Manual
Npt screw plug immersion heater, Standard (sp series), With thermostat (asp series)
2"
3
9
/
16
"
3
1/8
"
B
3
1
/4
"
3
1
/8
"
4
13/16
"
Standard (SP series)
General Purpose Enclosure
no thermostat
With thermostat (ASP series)
General Purpose Enclosure
with thermostat
1" NPT opening
4
1/2
"
3
1/2
"
dia.
3"
ap
pro
x.
2
5/16
"
Moisture Resistant or Hazardous Location - SP series
4
1/2
" a
pp
rox
.
2
11/16
"
5
1/4
"
4
1/4
"
dia.
1
1/4
" NPT opening
Moisture Resistant or Hazardous Location - ASP series
50-60 watts/in
2
Copper Sheath
Typically to heat:
1
1
/
4
” brass screw plug
municipal water
1 or 2 elements - up to 240 volts
(specifiy voltage when ordering)
watts immersed
no. of
catalogue number
net
length
elements
Fig. 63
Fig. 64 weight
B dim.
standard
with thermostat (lb)
750
7
1
/
2
1
SPC-1007
ASPC-1007
3
1000
9
1
/
2
1
SPC-1010
ASPC-1010
3
1500
7
1
/
2
2
SPC-1015
ASPC-1015
4
2000
9
1
/
2
2
SPC-1020
ASPC-1020
4
3000 13
1
/
2
2
SPC-1030
ASPC-1030
4
5000 17
1
/
2
2
SPC-1050
ASPC-1050
5
25 watts/in
2
Steel Sheath
Typically to heat:
1
1
/
4
” steel screw plug
light oils
1 or 2 elements - up to 240 volts
(specifiy voltage when ordering)
watts immersed
no. of catalogue number
net
length
elements
Fig. 63 Fig. 64
weight
B dim.
standard
with thermostat (lb)
500
11
1
SPO-1005 ASPO-1005
3
750
8
1
/
2
2
SPO-1007 ASPO-1007
4
1000 11
2
SPO-1010 ASPO-1010
4
1500 16
1
/
4
2
SPO-1015 ASPO-1015
4
2000 22
3
/
8
2
SPO-1020 ASPO-1020
5
2500 27
2
SPO-1025 ASPO-1025
5
12 watts/in
2
Steel Sheath
Typically to heat:
1
1
/
4
” steel screw plug
hydraulic oils
1 or 2 elements - up to 240 volts
heavy oils
(specifiy voltage when ordering)
watts immersed
no. of
catalogue number
net
length
elements
Fig. 63 Fig. 64
weight
B dim.
standard
with thermostat (lb)
250
11
1
SPOL-1002 ASPOL-1002
3
500
11
2
SPOL-1005 ASPOL-1005
4
750
16
1
/
4
2
SPOL-1007 ASPOL-1007
4
1000
22
3
/
8
2
SPOL-1010 ASPOL-1010
5
1250
27
2
SPOL-1012 ASPOL-1012
5
Moisture Resistant Enclosure (add suffix MR)
Hazardous Location (Explosion Resistant add suffix ER)
Non-Thermostat version
Moisture Resistant Enclosure (add suffix MR)
Hazardous Location (Explosion Resistant add suffix ER)
Thermostat included version
10 - 120°C (50 - 250°F)
240 vac, 25 amp, SPST
Figure 63
Figure 64
Figure 65
Figure 66
B2
1
1
/
4
” NPT Screw Plug
Immersion Heater
Optional Temperature Ranges
-16 to +40°C (0-100°F)
70-280°C (160-540°F)