Options
Screw Plug
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NEMA 4/7 Moisture/Explosion Resistant
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Plug Size
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C
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D
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E
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F
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G
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1″
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3 5⁄16
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4 ½
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1
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6 ⅛
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1 ¼ NPT
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2″ & 2 ½”
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4 ⅜
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5 ¾
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1 ¼
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7 ⅝
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1 ½ NPT
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Flanged
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NEMA 4 Moisture Resistant
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Flange Size
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“A” Maximum
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3″ – 150#
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4 ½”
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5″ – 150#
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6 ¾”
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8″ – 150#
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8 ¾”
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10″ – 150#
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10 ¾”
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12″ – 150#
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12 ¾”
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14″ – 150#
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14 ¾”
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EMA 7 Moisture Resistant
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Flange Size
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“A” Maximum
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3″ – 150#
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4 ½”
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5″ – 150#
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6 ¾”
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8″ – 150#
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8 ¾”
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Bulb & Capillary
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Style
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Range
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Code No.
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Availability
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Single Pole
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30-110°F
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T1
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All 1″ Screw Plugs
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60-250°F
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T2
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Std. on 1″ Plugs
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175-550°F
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T3
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All 1″ Screw Plugs
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Double Pole
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0-100°F
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T4
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All Plugs & Flanges
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60-250°F
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T5
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Std. on 3″, 5″, 8″ Flange
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150-500°F
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T6
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All Plugs & Flanges
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Solid State
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Style
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Range
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Code No.
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Availability
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Non-Indicating Sub-Panel
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0-300°F
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86-03
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All Plugs & Flanges
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0-800°F
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86-08
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All Plugs & Flanges
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500-1500°F
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86-515
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All Plugs & Flanges
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High Temp. Standoff Housing
Over Temp. Thermocouple to Sheath
(Standard on High Capacity Heaters)
Additional Options
Weatherproof insulation shroud
High temp. ceramic fiber insulation. (Standard on high capacity units.)
All stainless steel construction.
Passivation on all wetted surfaces
ASME section VIII construction on vessel
High pressure construction