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Overview

Provide operating control and automatic high limit protection for vapor heating systems with pressures up to 4 psi (8 kPa). All models have Microswitch snap switches to open or close a circuit on a pressure rise.

Features

  • Stainless steel diaphragm for use with liquids, air, noncombustible gases, ammonia, oxygen, distilled water and similar media.
  • Provide SPDT switching.
  • Clear plastic cover allows observation of the pressure settings.
  • Mount using hexagonal fitting with 1/4 in. NPT internal threads for direct mounting to the 14026 (steel) or 50024585-001 (brass) Steam Trap (siphon loop).
  • Ground Screw terminal.

Product Specifications

Application
Provide operating control and automatic limit protection for pressure systems with pressures up to 4 psi (8 kPa)
Dimensions (in.)
5 1/8 in. high x 4 1/2 in. wide x 4 1/2 in. deep.
Dimensions (mm)
130 mm high x 114 mm wide x 114 mm deep.
Mounting
1/4 in. NPT internal thread or surface mount through back of case
Approvals, Underwriters Laboratories Inc.
Listed: File No. MP466, Guide No. MBPR
Approvals, Canadian Standards Association
Certified: File No. LR1620, Guide No. 400-E-O
Electrical Connections
Screw terminals
Contact Ratings
120 Vac Switch Contact-- 8.0 AFL, 48.0 ALR, 10.0 A resistive; 240 Vac Switch Contact-- 5.1 AFL, 30.6 ALR, 5.0 A resistive
Operating Temperature Range (F)
-35 F to +150 F
Operating Temperature Range (C)
-37 C to +66 C
Approvals, Swiss RE
Acceptable
Sensor Element
Stainless Steel diaphragm
Operating Range (psi)
0 to 4 psi
Operating Range (kPa)
0 to 28 kPa
Differential Pressure Range (psi)
2 to 16 oz/in2
Differential Pressure Range (kPa)
0.9 to 6.9 kPa
Differential Type
Subtractive
Switch Operation
Auto recycle
Switching Action
SPDT make R-W, break R-B on pressure rise
Pipe Connection
Main or High Pressure--1/4 in. NPT internal thread
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