Npt screw plug immersion heater, Three element design - one or three phase, Standard (sp series) – ASB Heating Elements Ltd. 2 1_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
1
/
2
” NPT Screw Plug Immersion Heater
Three element design - one or three phase
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 95
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
1/4"
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 92
Figure 93
Figure 94
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
1
/
2
” steel screw plug
light oils
3 elements - up to 600 volts, 1 or 3 phase
(specifiy voltage and phase when ordering)
watts
immersed
catalogue number
net
length
Fig. 92
Fig. 93
weight
B dim.
standard
with thermostat
(lb)
1125
6
1
/
2
SPO-3011 ASPO-3011 7
1500
7
1
/
2
SPO-3015 ASPO-3015 7
1875
9
1
/
2
SPO-3018 ASPO-3018 7
2250
11
1
/
2
SPO-3025 ASPO-3025 8
3000
17
3
/
4
SPO-3030 ASPO-3030 8
3750
19
SPO-3037 ASPO-3037 8
4500
24
1
/
2
SPO-3045 ASPO-3045 9
5250
28
SPO-3052 ASPO-3052 9
6000
32
1
/
2
SPO-3060 ASPO-3060 9
7500
39
3
/
8
SPO-3075 ASPO-3075 9
9000
47
1
/
4
SPO-3090 ASPO-3090 11
10500
54
SPO-3105 ASPO-3105 11
watts
immersed
catalogue number
net
length
Fig. 92 Fig. 93
weight
B dim.
standard
with thermostat
(lb)
525
6
1
/
2
SPOL-3005 ASPOL-3005 7
750
7
1
/
2
SPOL-3007 ASPOL-3007 7
935
9
1
/
2
SPOL-3009 ASPOL-3009 7
1125
11
1
/
2
SPOL-3011 ASPOL-3011 8
1500
17
3
/
4
SPOL-3015 ASPOL-3015 8
1875
19
SPOL-3018 ASPOL-3018 8
2250
24
1
/
2
SPOL-3022 ASPOL-3022 9
2625
28
SPOL-3026 ASPOL-3026 9
3000
32
1
/
2
SPOL-3030 ASPOL-3030 9
3750
39
3
/
8
SPOL-3037 ASPOL-3037 9
4500
47
1
/
4
SPOL-3045
ASPOL-3045 11
5250
54
SPOL-3052 ASPOL-3052
11
watts
immersed
catalogue number
net
length
Fig. 92
Fig. 93
weight
B dim.
standard
with thermostat
(lb)
1125
6
1
/
2
SPA-3011 ASPA-3011 7
1500
7
1
/
2
SPA-3015 ASPA-3015 7
1875
9
1
/
2
SPA-3018 ASPA-3018 7
2250
11
1
/
2
SPA-3025 ASPA-3025 8
3000
17
3
/
4
SPA-3030 ASPA-3030 8
3750
19
SPA-3037 ASPA-3037 8
4500
24
1
/
2
SPA-3045 ASPA-3045 9
5250
28
SPA-3052 ASPA-3052 9
6000
32
1
/
2
SPA-3060 ASPA-3060 9
7500
39
3
/
8
SPA-3075 ASPA-3075 9
9000
47
1
/
4
SPA-3090 ASPA-3090 11
10500
54
SPA-3105 ASPA-3105 11
12 watts/in
2
Steel Sheath
Typically to heat:
2
1
/
2
”steel screw plug
hydraulic oils
3 elements - up to 600 volts, 1 or 3 phase heavy oils
(specifiy voltage and phase when ordering )
25 watts/in
2
Incoloy Sheath
Typically to heat:
2
1
/
2
”steel screw plug
light oils,
2 elements - up to 600 volts
mild caustic solution
(specifiy voltage when ordering )
mild alkaline solutions
Figure 96
B8