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Series-500-Level
Durable Insertion Level Control for Tanks - Adjustable, Multi-Mount
Series-500-Level
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| EXAMPLE | 500T | WT | 7810 | C | 55 | 6 | 0 | 500T-WT-7810-C-55-6-0 Liquid Level Control, NEMA 4X weatherproof enclosure, 2-1/2” NPT cast steel threaded chamber for direct tank mounting, SPDT snap action switch, fixed deadband, automatic reset, operating pressure 200psi (14 bar) to 425°F (218°C), minimum specific gravity 0.55 with 6” (152mm) float rod and 2-1/2” x 4” (64mm x 102mm) float. | ||
| CONSTRUCTION | 500T | NPT threaded process connection | ||||||||
| 500F | Flanged direct mount process connection | |||||||||
| ENCLOSURE | G | General purpose, NEMA 1 | ||||||||
| WT | Watertight NEMA 4, 4X | |||||||||
| E | Explosion-proof, NEMA 7, 9 | |||||||||
| EV | Explosion-proof, vapor-proof, NEMA 7, 9 | |||||||||
| CIRCUITS (for electrical circuits, See charts A & B below) |
XXXX | XX | Snap action or mercury switch, see chart A and B below. | |||||||
| 78XXHM | Hermetically sealed snap switch, see chart B below or consult factory. | |||||||||
| CHAMBER MATERIAL | C | Cast iron | ||||||||
| C216 | Cast 316SS | |||||||||
| C217 | Cast 316SS with shielded armature | |||||||||
| MINIMUM SPECIFIC GRAVITY |
80 | 0.80 specific gravity, 2-1/2” diameter round float | ||||||||
| 70 | 0.70 specific gravity, 2-1/2” x 4” float (2 stage only) | |||||||||
| 55 | 0.55 specific gravity, 2-1/2” x 4” float | |||||||||
| ROD LENGTH | 6 | 6” 316SS (Standard) | ||||||||
| 12 | 12” 316SS | |||||||||
| 18 | 18” 316SS | |||||||||
| 24 | 24” 316SS | |||||||||
| FLANGE | 0 | No flange | ||||||||
| 2 | 2-1/2” 125# cast iron | |||||||||
| 6 | 2-1/2” 150# forged steel | |||||||||
| 7 | 3” 150# forged steel | |||||||||
| 8 | 4” 150# forged steel | |||||||||
| 9 | 6” 150# forged steel | |||||||||
| 10 | 2-1/2” 300# forged steel | |||||||||
| 11 | 3” 300# forged steel | |||||||||
| 6S | 2-1/2” 150# 316SS | |||||||||
| 7S | 3” 150# 316SS | |||||||||
| 8S | 4” 150# 316SS | |||||||||
| OPTIONS | HF | Heat fins | ||||||||
| STW | Stainless steel tag wired | |||||||||
| 01 | Breather only (E-Housing only) | |||||||||
| 02 | Drain only (E-Housing only) | |||||||||
| 12 | Breather and drain (E-Housing only) | |||||||||
| 23720 | Fungus proofing special 23720 |
CHARTS A & B - ELECTRICAL CIRCUITS AND RATINGS
| 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 | -4820 | -4820 | -20 | UL | |
| SP-ST open on level RISE | 10 | 5 | 3† | 10 | 5 | -4821 | -4821 | -21 | UL | ||
| SP-DT one switch | 4 | 2 | 1† | 4 | 2 | -4810 | -4810 | -10 | UL | ||
| SP-DT two switches E.I.* | 10 | 5 | 3† | 10 | 5 | -4815 | -4815 | -15 | UL | ||
| DP-ST two switches E.I.* open on level FALL | 10 | 5 | 3† | 10 | 5 | -4814 | -4814 | -14 | UL | ||
| DP-ST two switches E.I.* open on level RISE | 10 | 5 | 3† | 10 | 5 | -4813 | -4813 | -4813 | UL | ||
| DP-DT two SP-DT switches | 4 | 2 | 1† | 4 | 2 | -4806 | -4806 | -06 | UL | ||
| CHART B snap action contacts |
SP-DT one switch | 12 | 5 | 3† | 0.5** | 0.25** | -7810 | -7810 | -10 | UL | |
| DP-DT Two SP-DT switches | 12 | 5 | 3† | 0.5** | 0.25** | -7806 | -7806 | -06 | UL | ||
| 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 | ||||
†Available on special order, change 1st digit in ordering code from 4 to 5 or 7 to 8, i.e., -4820 becomes -5820, -7810 becomes -8810, etc.
‡10 amp inductive (polarized) at 125 VDC.
*Electrically Independent.
**Resistive.