Dual pressostat PS 2

The PS 1 is an adjustable dual-pressure switch for high and low pressure applications.

 

Applications:
  • Protection functions (for examplePump-Down)
  • Control functions
  • Defrost control
  • Refrigeration
  • Heat pump systems
  • etc.
Characteristics:
  • 2 independent change-over contacts
  • Narrow adjustable differential depending on model
  • Range and differential pointer in units bar and psig
Function:
  • A = Both sides: automatic pressure controls
  • B = Both sides: cut out, external manual reset EN 12263
  • C = Left side: pressure limiter, automatic, EN 12263, Right side: cut out, external manual reset EN 12263
  • G = Left side: cut out, external manual reset EN 12263, Right side: safety cut out, internal manual reset EN 12263
  • L = Left side: automatic pressure controls, Right side: external manual reset
  • M = left side: automatic pressure controls, Right side: convertible from R to A
  • R = Both sides: external manual reset
  • S = Both sides: safety cut out, internal manual reset EN 12263
  • T = left side: pressure limiter, automatic, EN 12263, Right side: safety cut out, internal manual reset EN 12263
  • U = Both sides: convertible from R to A
  • W = Both sides: pressure limiter, automatic, EN 12263
Pressure connector:
  • A = 7/16"-20 UNF male
  • C = G1/4" male, stainless steel with steel bellows
  • K = 1m cap tube and schrader valve opener, 7/16"-UNF flare nut
  • L = 1/4"-ODM solder with 1m cap tube
  • R = G 1/4" außen
  • U = 6mm ODF solder, 80mm length
  • X = 1/4"- ODF solder, 80mm length
  • F = 1/4"-18 NPTF, steel (incl.bellows)
Pressure range:
  • 7 = -0,5 ... 7 bar / 6 ... 31 bar
  • 8 = 6 ... 31 bar / 6 ... 31 bar
  • 9 = -0,75 ... 3 bar / 6 ... 31 bar

 

Dual-pressostat PS 2
Type Upper switch pt.adjustable from … to(at bar) left Upper switch pt.adjustable from … to(at bar) right Difference adjustable from … to(at bar) left Difference adjustable from … to(at bar) right Standard setting
(at  bar) left		 Standard setting
(at  bar) right		 Leakage Test (at  bar) left Leakage Test (at  bar) right Pressure connector
PS2-A7A -0,5 ... 7 6 ... 31 0,5 ... 5 * ca. 4 fix 3,5 / 4,5 20 25 36 7/16"-20 UNF
PS2-A7K capillary/nut
PS2-A7L cap/solder
PS2-A7U solder 6mm
PS2-A7X solder tube 1/4"
PS2-L7A -0,5 ... 7 6 ... 31 0,5 ... 5 * Ext.reset Approx. 4 bar below setpoint 3,5 / 4,5 20 25 36 7/16"-20 UNF
PS2-L7K capillary/nut
PS2-L7L cap/solder
PS2-L7U solder 6mm
PS2-L7X solder tube 1/4"
PS2-R7A -0,5 ... 7 6 ... 31 Ext.reset Approx. 1 bar above setpoint Ext.reset Approx. 4 bar below setpoint 3,5 20 25 36 7/16"-20 UNF
PS2-R7K capillary/nut
PS2-R7L cap/solder
PS2-R7U solder 6mm
PS2-R7X solder tube 1/4"
* lowest possible setpoint: -0,9 bar
Type Upper switch pt.adjustable from … to(at bar) left Upper switch pt.adjustable from … to(at bar) right Difference adjustable from … to(at bar) left Difference adjustable from … to(at bar) right Standard setting
(at  bar) left		 Standard setting
(at  bar) right		 Leakage Test (at  bar) left Leakage Test (at  bar) right Pressure connector
PS2-W7A -0,5 ... 7 6 ... 31 0,5 ... 5 * ca. 4 fix 3,5 / 4,5 20 25 36 7/16"-20 UNF
PS2-W7K capillary/nut
PS2-W7L cap/solder
PS2-W7U solder 6mm
PS2-W7X solder tube 1/4"
* lowest possible setpoint: -0,9 bar
PS2-C7A -0,5 ... 7 6 ... 31 0,5 ... 5 * Ext.reset Approx. 4 bar below setpoint 3,5 / 4,5 20 25 36 7/16"-20 UNF
PS2-C7K capillary/nut
PS2-C7L cap/solder
PS2-C7U solder 6mm
PS2-C7X solder tube 1/4"
* lowest possible setpoint: -0,9 bar
Type Upper switch pt.adjustable from … to(at bar) left Upper switch pt.adjustable from … to(at bar) right Difference adjustable from … to(at bar) left Difference adjustable from … to(at bar) right Standard setting
(at  bar) left		 Standard setting
(at  bar) right		 Leakage Test (at  bar) left Leakage Test (at  bar) right Pressure connector
PS2-T7A -0,5 ... 7 6 ... 31 0,5 ... 5 * Int. reset Approx. 4 bar below setpoint 3,5 / 4,5 21 25 36 7/16"-20 UNF
PS2-T7K capillary/nut
PS2-T7L cap/solder
PS2-T7U solder 6mm
PS2-T7X solder tube 1/4"
* lowest possible setpoint: -0,9 bar
PS2-B7A -0,5 ... 7 6 ... 31 Ext.reset Approx. 1 bar above setpoint Ext.reset Approx. 4 bar below setpoint 3,5 20 25 36 7/16"-20 UNF
PS2-B7K capillary/nut
PS2-B7L cap/solder
PS2-B7U solder 6mm
PS2-B7X solder tube 1/4"
* lowest possible setpoint: -0,9 bar
Type Upper switch pt.adjustable from … to(at bar) left Upper switch pt.adjustable from … to(at bar) right Difference adjustable from … to(at bar) left Difference adjustable from … to(at bar) right Standard setting
(at  bar) left		 Standard setting
(at  bar) right		 Leakage Test (at  bar) left Leakage Test (at  bar) right Pressure connector
PS2-G8A 6 ... 31 6 ... 31 Ext.reset Approx. 4 bar below setpoint Int. reset Approx. 4 bar below setpoint 20 21 36 36 7/16"-20 UNF
PS2-G8K capillary/nut
PS2-G8L cap/solder
PS2-G8U solder 6mm
PS2-G8X solder tube 1/4"