모델명	:	452.50/453.50
	제조회사	:	WIKA
	원산지	:	GERMANY

국문 카다로그	국문 메뉴얼	영문 카다로그	영문 메뉴얼

Sealgauge Diaphragm Pressure Gauges
Process Industry Series 
Type 452.50 - 
Dry Case
Type 453.50 - Liquid-filled Case





Applications

With liquid filled case for applications with high dynamic pressure 
pulsations or vibration.

Suitable in corrosive environments for gaseous, liquid or highly viscous 
media.

Process industry: chemical/petrochemical, power stations, mining, on and 
offshore, environmental technology,mechanical engineering and plant 
construction. 



Special Features


Wide selection of special materials

All stainless steel construction

High overpressure safety

Raised face flange

Ideal for crystallizing media

 











Standard Features
 





Design
EN 837-3
Weather protection
Weather resistant (NEMA 3 / IP54)-dry 
case
Weather tight (NEMA 4X / IP65)-liquid-filled case

Sizes
4” & 6” (100 & 160 mm)
Pressure connection and lower diaphragm housing
1” 150# 
RF flange or
2” 150# RF flange

Accuracy class
± 2.5% of span
Case and upper diaphragm housing
Material: stainless 
steel
Case with blowout disk and stainless steel bayonet ring

Ranges
Vacuum / Compound to 300 psi
Pressure from 10” 
H2O to 250” H2O (6” flange diameter)
Pressure from 10 psi to 600 psi (4” 
flange diameter)
or other equivalent units of pressure or vacuum
Diaphragm element
≤100” H2O: 316 stainless steel with 
PTFE lining
> 100” H2O: Duratherm (NiCrCo-alloy) with PTFE lining
All 
ranges with FPM (Viton) sealing gasket

Working pressure
Steady: full scale 
value
Fluctuating: 0.9 x full scale value
Movement
Material: stainless steel

Overpressure safety
5 x full scale value, max. 600 
psi
Dial
White aluminum with black lettering

Operating temperature
Ambient: -4°F to +140°F (-20°C to 
+60°C)
Medium: +212°F (+100°C) maximum
Pointer
Black aluminum, adjustable-Type 452.50
Black 
aluminum, non-adjustable-Type 453.50

Temperature error
Additional error when temperature 
changes from reference temperature of 68°F (20°C) ±0.8% for every 18°F (10°C) 
rising or falling.
Percentage of span.