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901/5/5, Gidc, Makarpura, Vadodara, Gujarat - 390010, India +91 9978916315, +91-265-2651071 / 2644460 sales@patelheaters.com
Tubular Heaters

Tubular Heaters

Patel Heater & Control Pvt Ltd is proud to present highly advanced Tubular Heaters in India. We develop high performing Tubular Heaters that are designed at our in house facility keeping in mind the requirements of our customers and meeting them using latest technology solutions. Made from superior quality raw materials, our Tubular Heaters have sturdy construction and unique design that makes them perform better compared to its competitors. Today, we are listed among the top Tubular Heater Manufactures in Gujarat, because we have been able to serve any requirement of our clients by providing heaters that can be formed into virtually any shape, brazed or welded to any metal surface, and cast into metals. In addition to shape and design, these can also be availed in different wide range of electrical ratings, diameters, lengths, terminations, and sheath materials. The excellent performance of our heaters have helped us accent among the finestTubular Heaters Suppliersfrom Vadodara, Gujarat.

Product Description

Ordering Info. Required

Features

  • Available in wide variety of ratings, shapes and sizes
  • Made from superior quality raw materials
  • Can be transformed to fit any construction design
  • Advanced technology

Ordering Info. Required

  • Volt & Wattage Require
  • Dia & length of the heater Require
  • Terminal Type
  • Shape of heater
  • Bushing or other option
  • Application information including process temperature, Material being
    heated,corresive condition
  • Effective Heating Length Required
  • Drawing or photo if available

Applications

  • Forced air heating
  • Comfort radiant heaters
  • Combination radiant and convection heater for ovens and dryers
  • Welded, brazed or clamped to tanks and pipes
  • Hot runner molds
  • Direct immersion in liquids
  • Thermal forming machines

Technical Data

  •  Made as per required size and shapes

Construction Characteristics

PHC Tubular Heaters are the most versatile and widely used source of electric heat for industrial, commercial and scientific applications. They can be designed in a wide range of electrical ratings, diameters, lengths, terminations, and sheath materials. Important and useful characteristics of tubular heaters are that they can be formed into virtually any shape, brazed or welded to any metal surface, and cast into metals. Carefully researched manufacturing methods and quality materials have made PHC tubular heaters stand apart from other heating elements claiming similar performance.

Typical Applications

  • Forced air heating
  • Thermal forming machines
  • Direct immersion in liquids
  • Comfort radiant heaters
  • Welded, brazed or clamped to tanks and pipes
  • Hot runner molds
  • Combination
  • radiant and convection heater for ovens and dryers

Watt Density

Element Watt Density is the wattage dissipated per square inch of the element sheath surface and is critical to the proper heating of the application and to the life expectancy of the heater. The Watt Density is calculated with the following formula:

Watt Density (w/in2) =                           Element Wattage                    
π × Element Dia. × Element Heated Length

For a particular application element watt density will govern element sheath and internal resistance wire temperature. Factors to consider when choosing a suitable watt density are:

 

  1. Many materials are heat sensitive and can decompose or be dam- aged if the element is running too
  1. Air and other gases that are poor conductors of heat require watt densities matched to the velocity of the gas flow to prevent element
  2. When heating hard water or cleaning solutions mineral deposits can build up on the element sheath, acting as a heat insulator and raising the internal element If these deposits cannot be periodically removed, use a lower watt density element to increase heater life expectancy.

Standard Tubular Heater Terminations

Select the termination style that meets your requirements for space, accessibility and reliability.

Note:  If the listed terminations do not seem to fit your requirements, call us and let us design one that will.

 

  • Stud Terminal

 

TYPE TS—STANDARD

Threaded stud terminal with ceramic insulator. Standard thread size is 6-32 for .260″ (6.6 mm), 8-32 for .315″ (8 mm), .335″ (8.5 mm) and .375″ (9.5 mm), and 10-32 for all other diameters. Other thread sizes and lengths are available as par Requirement.

Ceramic Insulator Stud Terminal
  • TYPE TM—Stud with Mica Insulator
Mica Stud Terminal
  • Type P – Plain Pin
Plain Terminal Tubular heater
  • Type L – Terminal Lug type.
Terminal Lug type
  • TYPE L1 TERMINATION– Screw lug terminal 90°.
Terminal Lug type
  • TYPE D TERMINATION– Quick connect.  Maximum 240V
Quick Disconnect Terminal
  • TYPE D1 TERMINATION– Quick connect 90°. Maximum 240V
Quick Disconnect Terminal
  • Type MR– Moisture resistant shrink strain relief and lead wire with or without stainless steel overbraid.
Moisture Resist Shrink Terminal
Type Insulation Max. Temperature Volts
WS Silicone 390°F (200°C) 600V
WF Fiberglass 480°F (250°C) 600V
WM Mica/Glass 840°F (450°C) 600V

Termination and Mounting Method

TYPE W MOUNTING– Locator washers

type_W_mounting

TYPE P MOUNTING-Mounting bracket

type_P_mounting

TYPE F MOUNTING– Threaded bulkhead fittings

type_F_mounting

TYPE T MOUNTING– Threaded bulkhead fittings

type_T_mounting

Tubular Sheath & Watt Density Guidelines

Heated Medium Process Temperature
°F (°C)
Sheath Material Max. Watt Density
W/in2 (W/cm2)
SOLIDS
Clamp on to Metal To 500 (260)
To 1000 (540)
Incoloy® 20 (3)
10 (1.5)
Milled Groove Molds To 500 (260)
To 1000 (540)
Incoloy® 60 (9)
30 (4.5)
Vacuum Platens To 650 (345)
To 1000 (540)
Aluminum, SS
Incoloy® or Inconel®
40 (6)
20 (3)
LIQUIDS
Clean Potable Water To 212 (100)
To 500 (260)
Copper
Incoloy®
60 – 90 (9 – 14)
30 – 40 (4.5 – 6)
De-I Water To 212 (100) 316SS 60 (9)
Process Water &
Very Diluted Corrosives
To 200 (95) 304SS or Incoloy® 48 (7.5)
Mild or Diluted Acids &
Alkalies
To 200 (95) Incoloy®, 316SS or
Inconel®
15–23 (2.3 – 3.5)
Oils (Depends on Type & Use) 50 – 600 (10-315) Steel 6 – 23 (1 – 3.5)
AIR
Ovens, Natural Convection To 700 (370)
To 1200 (650)
Incoloy® 30 (4.5)
10 (2.3)
Flowing Air @
Min. 500 fpm
To 800 (425)
To 1000 (650)
Incoloy® 30 (4.5)
23 (3.5)

 

Maximum Recommended Sheath Temperatures

 

Sheath Material Maximum Temperature in Air °F (°C) Typical Aplications
Standard Available Sheath Materials
Copper 350 (175) Clean, potable water heating
Aluminum 750 (400) Vacuum platens
Steel 750 (400) Oils, glycol, molten salts, non-corrosives
SS304 1200 (650) Improved corrosion resistance over steel
SS316 1200 (650) De-ionized water and some corrosives
Incoloy® 840 1600 (870) Improved corrosion resistance over steel and 304SS
Incoloy® 800 1600 (870) Improved resistance to chloride attack, other corrosives
 

Other Available Sheath Materials

SS321 1200 (650) Improved corrosion resistance over steel and 304SS
Incoloy® 825 1600 (870) Highly resistant to many acids, salts, and other media
Inconel® 600 1800 (980) Highly resistant to many acids, salts, and other media

Typical Bandings.

dg_tubular1
dg_tubular2

Indian Market

Gujarat, Rajasthan, Jammu & Kashmir, Tamilnadu, Banglore, Madhya Pradesh, Goa

International Market

Uganda, Kenya, UAE, Tanzania, Saudi Arabia, Chilli, Sri lanka, Nigeria, Egypt, South Africa, Kenya, Algeria, Uganda, Cameroon, Kuwait, Bahrain, Iraq, Oman, Qatar, Saudi Arabia and the United Arab Emirates (UAE)