Screw Plug Heaters are constructed by brazing or welding elements into a hex pipe thread. These are intended for direct immersion into fluids and gases. The heater is to be installed via a threaded port in the tank or vessel. Screw plug heaters are available in a variety of pipe thread sizes and materials. The heating elements are offered in a number of materials suited to a variety of fluid heating applications. Terminal housings are available for indoor, outdoor (weather- proof NEMA 4) and hazardous (NEMA 7) environments. Many options are available including thermostats, high limit and process thermocouples or RTD sensors. Since we are a made to order company, we can offer a large selection of sizes and configurations which are not listed below. Please contact us for assistance with your application.
螺旋塞加热器是由钎焊或焊接元件制成的六角管螺纹。它们的目的是直接浸入液体和气体中。加热器将通过坦克或容器中的螺纹端口安装。螺杆式加热器可在各种管道螺纹尺寸和材料中使用。加热元件提供了一些适合各种流体加热应用的材料。终端外壳可用于室内、室外 (防风化 nema 4) 和危险 (nema 7) 环境。有许多选项可供选择, 包括恒温器、高限制和过程热电偶或 RTD 传感器。由于我们是一家订购的公司, 我们可以提供大的选择大小和配置, 没有列出如下。请与我们联系, 以协助您的申请。
Standard Plug Sizes & Materials
| NPT Sizes | 1″, 1 1/4“, 1 1/2“, 2”, 2 1/2“ |
| British Sizes- BSP, BSPP | 1″, 1 1/4“, 1 1/2“, 2”, 2 1/2“ |
| Materials | Brass, Steel, Stainless Steel |
Common Sheath Materials
| SHEATH MATERIAL | APPLICATION | WATT DENSITY Watt.in2 |
|---|---|---|
| Copper | Potable water | 40-80 |
| Steel | Fuel Oils | 20-25 |
| Hydraulic Oils | 12-25 | |
| Stainless Steel | De-Ionized, R-O, Process Water, | 40-80 |
| Mild Acids | 12-25 | |
| Incoloy 800® | Water, Mild Alkaline Solutions, Air and Gases Maximum Sheath Temperature 1400°F | 10-125 |
| Inconel 600® | Water, Very Alkaline Solutions, High Temperature Air And Gases Maximum Sheath Temperature 1500°F | 10-50 |