Mercoid Series 221, 223 and 224
|
Flanged Chamber Level Control |
External Mount, Pressure to 1000 psig (69 bar) and Temperature to 475°F (246°C) |
Heavy duty flanged chamber features removable float for ease of inspection and maintenance. The 221 Series also provides 1" NPT for standard external mounting. Socket weld hubs or flanges are optional. Rugged C1-75 construction is suitable for operation at 1000 psi (69 bar) at 100°F (38°C), and 850 psig (59 bar) at 475°F (246°C) with a minimum specific gravity of 0.75. C1-60 construction is suitable for operation at 600 psig (41 bar) at 100°F (38°C), and 550 psig (38 bar) at 475°F (246°C) with a minimum specific gravity of 0.60. Models featured can be ordered with various circuits including SPST, SPDT, or DPDT with hermetically sealed snap action or mercury contacts. A full range of enclosures are available including general purpose, weatherproof, explosion-proof, or explosion-proof – vapor proof.
{module_literature,i,179784}
|
Specifications: |
C1-60: Minimum specific gravity 0.60; Process pressure 600 psig (41 bar) at 100°F (38°C), 550 psig (38 bar) at 475°F (246°C).
C1-75: Minimum specific gravity 0.75; Process pressure 1000 psig (69 bar) at 100°F (38°C), 850 psig (59 bar) at 475°F (246°C).
Switch Type: Snap action or mercury switch.
Electrical Rating: See Model Chart.
Wiring Connections: G, WT or E enclosure, terminal block. EV enclosure, 18" (460 mm) leads.
Process Connections: 1" NPT standard (socket weld hubs or flanges optional). See Model Chart.
Enclosures: G, painted steel and aluminum. WT, painted steel, aluminum and neoprene. E, aluminum. EV, aluminum and neoprene.
Wetted Parts: Chamber, carbon steel. Trim 316SS, 303SS, 304SS and 430SS.
Weight: 221: 60 lb (27 kg); 223: 70 lb (32 kg); 224: 77 lb (35 kg).
|
|
Model Chart (click to open/close)
EXAMPLE |
221 |
WT |
7810 |
C1 |
60 |
|
221-WT-7810-C1-60 Liquid Level Control, weatherproof enclosure, SPDT snap switch, fixed deadband, automatic reset, operating pressure 600 psig (41 bar) at 100°F (38°C), 550 psig (38 bar) at 475°F (246°C), side/bottom process connections, 1" NPT, minimum specific gravity 0.60. |
CONNECTION |
221 |
|
|
|
|
|
One Vertical and One Horizontal 1" NPT |
223 |
|
|
|
|
|
One Vertical and One Horizontal Flanged Connection |
224 |
|
|
|
|
|
Two Vertical Flanged Connections |
ENCLOSURE |
|
G |
|
|
|
|
General Purpose, NEMA 1 |
|
WT |
|
|
|
|
Weatherproof, NEMA 3R, 4, 4X |
|
E |
|
|
|
|
Explosion-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G. CSA approved Groups C, D, E, F, G only. |
|
EV |
|
|
|
|
Explosion-proof/Vapor-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G. CSA approved Groups C, D, E, F, G only. |
CIRCUITS
(for electrical circuits
see charts A & B below) |
|
|
48XX |
|
|
|
Single Stage Mercury Switch, see chart A |
|
|
48XX-XX |
|
|
|
Two Stage, Mercury Switch, see chart A |
|
|
78XX |
|
|
|
Single Stage, Snap Switch, see chart B |
|
|
78XX-XX |
|
|
|
Two Stage, Snap Switch, see chart B |
|
|
78XXHM |
|
|
|
Hermetically Sealed Snap Switch, see chart B |
|
|
98XX |
|
|
|
Single Stage, High Capacity DC Snap Switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B |
|
|
98XX-XX |
|
|
|
Two Stage, High Capacity DC Snap Switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B |
|
|
10XX |
|
|
|
Single Stage, High Temp. Snap Switch, continuous rating 800°F (425°C), see chart B |
|
|
10XX-XX |
|
|
|
Two Stage, High Temp. Snap Switch, continuous rating 800°F (425°C), see chart B |
CHAMBER MATERIAL |
|
|
|
C1 |
|
|
Carbon Steel Body |
|
|
|
C216 |
|
|
316SS Body |
|
|
|
HFC1 |
|
|
Heat Fins & Carbon Steel Body |
SPECIFIC
GRAVITY |
|
|
|
|
60 |
|
0.60 Specific Gravity |
|
|
|
|
75 |
|
0.75 Specific Gravity |
|
|
|
|
160 |
|
0.60 Specific Gravity & 150# Flange |
|
|
|
|
175 |
|
0.75 Specific Gravity & 150# Flange |
|
|
|
|
360 |
|
0.60 Specific Gravity & 300# Flange |
|
|
|
|
375 |
|
0.75 Specific Gravity & 300# Flange |
|
|
|
|
660 |
|
0.60 Specific Gravity & 600# Flange |
|
|
|
|
675 |
|
0.75 Specific Gravity & 600# Flange |
OPTIONS |
|
|
|
|
|
H2 |
H2 Socket Weld Hub |
|
|
|
|
|
R |
Manual Reset, Single Stage |
|
|
|
|
|
R1 |
Manual Reset, Lower Stage 2-Stage Control |
|
|
|
|
|
R2 |
Manual Reset, Upper Stage 2-Stage Control |
|
|
|
|
|
R3 |
Manual Reset, Both Stages 2-Stage Control |
|
|
|
|
|
STW |
SS Tag Wired |
|
|
|
|
|
01 |
Breather Only |
|
|
|
|
|
02 |
Drain Only |
|
|
|
|
|
12 |
Breather & Drain |
|
|
|
|
|
23720 |
Fungus Proofing |
|
|
Charts A & B - Electrical Circuits and Ratings (click to open/close)
SWITCH TYPE |
SWITCH ACTION
|
ELECTRICAL RATINGS IN AMPS
|
ORDERING CODE
|
AC
|
DC
|
SINGLE STAGE
|
TWO STAGE
|
120V
|
240V
|
440V
|
30V
|
125V
|
250V
|
LOWER
|
UPPER
|
CHART A
Mercury Contacts |
SP-ST open on level FALL |
10
|
5
|
3†
|
|
10
|
5
|
-4821
|
-4821
|
-21
|
SP-ST open on level RISE |
10
|
5
|
3†
|
|
10
|
5
|
-4820
|
-4820
|
-20
|
SP-DT one switch |
4
|
2
|
1†
|
|
4
|
2
|
-4810
|
-4810
|
-10
|
SP-DT two switches E.I.* |
10
|
5
|
3†
|
|
10
|
5
|
-4815
|
-4815
|
-15
|
DP-ST two switches E.I.* open on level FALL |
10
|
5
|
3†
|
|
10
|
5
|
-4813
|
-4813
|
-13
|
DP-ST two switches E.I.* open on level RISE |
10
|
5
|
3†
|
|
10
|
5
|
-4814
|
-4814
|
-14
|
DP-DT two SP-DT switches |
4
|
2
|
1†
|
|
4
|
2
|
-4806
|
-4806
|
-06
|
CHART B
snap action contacts |
SP-DT one switch |
12
|
5
|
3†
|
|
0.5**
|
0.25**
|
-7810
|
-7810
|
-10
|
DP-DT two SP-DT switches |
12
|
5
|
3†
|
|
0.5**
|
0.25**
|
-7806
|
-7806
|
-06
|
SP-DT one hermetically sealed switch |
5
|
5
|
|
5**
|
|
|
-7810HM
|
-7810HM
|
-10HM
|
DP-DT two hermetically sealed SP-DT switches |
5
|
5
|
|
5**
|
|
|
-7806HM
|
-7806HM
|
-06HM
|
DP-DT two SP-DT switches |
10
|
3
|
|
|
10‡
|
3‡
|
-9806
|
-9806
|
-06
|
SP-DT one switch |
10
|
3
|
|
|
10‡
|
3‡
|
-9810
|
-9810
|
-10
|
DP-DT Two SP-DT switches |
2
|
2
|
|
|
0.4**
|
0.25**
|
-1006
|
-1006
|
-06
|
SP-DT one switch |
2
|
2
|
|
|
0.4**
|
0.25**
|
-1010
|
-1010
|
-10
|
|
|
|
Previous Page |
|