Mighty Watt and Mighty Watt Plus Cartridge Heaters Introduction & Design Stock Items List Mighty Watt Plus Figure X, A & D Lead Variations Figure F, G & R Lead Variations Figure U Sheath Extension Figure E Epoxy Seal Figure M Immersion Heater Mighty Watt with Internal Thermocouple Figure T & other Terminal Seals Figure Y Terminals & Plug Terminations Figure W Flange, B & C Lead Protection & additional variations Bullet Cartridge & Drain Heaters Cartridge Immersion Heaters Specifications & Limitations Watt Density & other Selection Factors

Introduction | SST & QST Split Sheath Insertion Heaters | Maxi-Zone High Temperature Insertion Heaters | Bolt Heaters

Figure U adds an unheated area to the lead end of stock Mighty Watt Cartridge Heaters. Any practical length greater than 1/2" can be selected. The standard lead configuration is with 12" fully flexible high temperature (850 F/450 C) leads. Specify longer length if required. Figure U can also include braided or armor cable protected leads. Consult Ogden. Non-stock Mighty Watt Cartridge Heaters can be designed and manufactured with practically any unheated area.

UNHEATED SHEATH EXTENSION WITH EPOXY SEAL

Fig. E - Shown are the same Mighty Watt Cartridge Heaters modified from stock with 3/4", 1-1/4" and 1-3/4" long sheath extension, Fig. E Epoxy seal and Teflon leads.

Figure E provides an epoxy seal to protect Mighty Watt cartridge heaters from the contaminates that cause early failure. Typically supplied with 12" Teflon leads. Specify longer length. Maximum temperature at lead end­300 F/150 C. Figures U and E Sheath Extension (Typical) Total Unheated Length at Lead End Fig. U Fig. E Fig. U Fig. E 1/2" 1" 7/8" 1-7/8" 1" 1-1/2" 1-3/8" 2-3/8" 1-1/2" 2" 1-7/8" 2-7/8" 2" 2-1/2" 2-3/8" 3-3/8" 2-3/4" 3-1/4" 3-1/8" 4-1/8" 3-1/2" 4" 3-7/8" 4-7/8" Fig. U and Fig. E Ordering Instructions Select Mighty Watt Cartridge Heater from stock, specify the necessary cold length, the type of termination and the lead length. Fig. E can also be manufactured to specification if size or rating required is not available from stock.

Figure M is a brass, steel or stainless steel pipe fitting which allows liquid tight installation through threaded openings. Fittings are brazed. For welded fittings and other cartridge immersion heater variations, scroll along this section. Be certain the watt density and sheath material are compatible with the material being heated. Diameter Pipe Size NPT Pipe Fitting Length 1/4" 1/8-27 5/8" 3/8" 1/4-18 5/8" 1/2" 3/8-18 3/4" 5/8" 1/2-14 13/16" 3/4" 3/4-14 15/16" Stock Sheath Length Is Immersion Length Fig. M Ordering Information Select Mighty Watt Cartridge Heater from Stock, brass, steel or stainless steel pipe fitting and size, type of termination and lead length.