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Model Number System
Diaphragm Housing Piston Switching
Element
Range
Spring
Pressure Port Accessories
Applications
SOR pressure switches in this catalog are suitable for a wide variety of continuous pressure
applications. Specific application requirements can normally be met by selecting optional
components, such as, switching elements, diaphragm systems and pressure ports. Certain
applications may require customized specials. Consult the SOR representative in your area or
the factory.
How to Order
Information and data in this catalog are formatted to provide a convenient guide to assist
instrument engineers, plant engineers and end users in selecting pressure switches for their unique
applications.
Steps 1 through 5 are required. Step 6 is optional. Orders must have complete Model Numbers,
i.e. each component must have a designator.
Step 1: Select Piston-Spring adjustable range/Set Point from Specifications
(pages 7 & 8). (Piston/Spring combination determines adjustable range.)
Step 2: Select Housing for type of pressure switch and service (page 9).
Step 3: Select electrical Switching Element for electrical service (pages 10 & 11).
Step 4: Select Diaphragm and O-Ring for process compatibility and containment
(pages 12 & 13).
Step 5: Select Pressure Port for process compatibility and connection (page 14).
Step 6: Select Accessories required for service (page

Standard Construction
?  Housing: NN - aluminum; L - cast iron
?  Switching Element: SPDT; N - 10 amps @
250 VAC; K - 15 amps @ 250 VAC
?  Diaphragm & O-ring: N4 - primary (wetted)
diaphragm, TCP; o-ring (wetted) Buna-N
?  Pressure Port: 1/4” NPT(F); B1A - aluminum;
F1A - carbon steel
Notes
1. See balance of catalog for construction options.
2. Dead band values are expressed as typical
expected at mid-range for a particular model
number. See Dead Band Considerations on
page 8.
3. Design and specifications subject to change
without notice. For lat
599987-N2C155    

424432-N2C155??? 

403222-N2C155???? 

403223-N2C155???? 

430662-LKT069

353462-LKT069

435200-LKT069

397290-LKT069

397373-LKT069

429956-LKT069

431168-LKT069

101NN-K45-N4-C1A

4NN-K45-N4-C2A???

SOR 防爆压力变送器431557-Q92713

SOR液位开关 CSIN1025IMX

SOR压力开关????? 9RN-EE45-M4-C1A

200-1750PSI(582542-SABSQ2)

SOR差压开关????? 101NN-K3-M4-C1A-TTVVV

3-30PSID(384025-SABSQ2)??????

SOR压力开关????? 12NN-K4-M4-C2A-TTVVV

0.5-6PSI(414834-SABSQ2)????

SOR压力开关????? 54RN-EE118-N4-RIA-X371

30-OINHG(396402-SABSQ2)?????

SOR压力开关????? 103W1-K212-N1-C1A-TTVVV

7-100INWCD(403218-SABSQ2)

BH-005012-005?=205A-AIB-B-ZI-N4-TTETXX833 ???

12NN-K614-N4-BIA   

99v1-k5-n4-c2a   

4B3-K4-M4-C2A-CL=BH-062009-062

107AL-N12-P1-F1A

6L-K3-N4-F1A

6L-K45-N4-F1A

6NN-K45-M4-C2A

6NN-K45-M4-C2A

15RB-EE2-N4-C2A-12.5-8.0PSID

44V1-K45-N4-B1A        

44V1-K4-N4-B1A  

 101NN-EE3-M4-C1A-X371    

53A1S1H3N-NP11XJ30

CS1N11XJ31

403212-N61126

403213-N61126

403216-N61126

396049-N61126

353462-N61126

403217-N61126