Pressure Switches & Gauges

Industrial pressure measurement and control instruments for process applications

WIKA Pressure Switches & Gauges

WIKA industrial pressure switches and gauges for process control applications

WIKA PSM 520 Pressure Switch Pressure Transmitter WIKA Pressure Gauge WIKA Pressure Gauge

WIKA Mechanical Pressure Switches

Basic On/Off Control

Mechanical pressure switches for basic on/off control applications in industrial processes.

WIKA PSM 520 Series Pressure Switch
PSM 520 100 WIKA Pressure Switch
  • Pressure Range: 0.1...100 bar
  • Material: Brass/bronze housing
  • Contact: SPDT (changeover)
  • Rating: 250V AC, 6A (16A max)
PSM 520 200 WIKA Pressure Switch
  • Pressure Range: 0.2...200 bar
  • Material: Stainless steel version
  • Contact: DPDT available
  • Temp Range: -25°C to +80°C
2️⃣ IPSF 60 Pressure Switch
  • Type: Industrial compact
  • Range: 0.5...60 bar
  • Connection: G1/4" female
  • Application: Hydraulics, pneumatics
WIKA PSD 4 Series
  • Type: Differential pressure
  • Range: 25 mbar to 40 bar
  • Material: Aluminum/SS
  • Application: Filter monitoring
4️⃣ Other WIKA Families
  • PSM-550 Series (High accuracy)
  • PSM01/PSM02 (Compact)
  • Models 201, 203, 204 (Industrial)
  • PS601/PS602 (Process grade)

Pressure Gauges

Industry Standard
WIKA pressure gauges are industry-standard instruments based on Bourdon tube, diaphragm or capsule elements. They're widely used for liquids and gases in HVAC, hydraulic, process, pneumatic and chemical applications.
WIKA Pressure Gauges
Model Size Pressure Range Connection
111.10 Standard 2″ (50mm) 0–7 bar (100 psi) Lower mount
111.10 4″ 4″ (100mm) 0–100 psi Bottom entry
SS Body Gauge 100mm Various ranges Stainless steel
0–21 kg/cm² 2.5″ (63mm) 0–21 kg/cm² Bottom entry
10 bar Gauge 63mm 0–10 bar Industrial
Baumer Pressure Gauges
Model Size Pressure Range Features
63mm Gauge 2.5″ (63mm) 0–14 kg/cm² Compact design
0–10 kg/cm² 100mm 0–10 kg/cm² Industrial grade
Vacuum Gauge 100mm 760 mmHg to 0 Vacuum measurement
BVF2 4" 4″ (100mm) Various ranges SS construction
ALH 2 4BM 100mm Dual scale Pressure/vacuum
WIKA vs Baumer Comparison
Feature WIKA Baumer
Brand Origin Leading German instrument maker Swiss/Global industrial instruments brand
Pressure Range Very wide — up to 7,000 bar with special models Wide industrial range — typical 0–1,600 bar
Variants Bourdon, diaphragm, capsule gauges Bourdon gauges, electric contact options
Standard Compliance EN 837-1, ASME B40.100 EN 837-1 (varies by model)
Fill Options Dry / liquid-filled available Dry / liquid-filled on many models

Pressure Transmitters

4-20mA Output

Electronic pressure transmitters convert pressure into standard 4-20mA or 0-10V signals for process control systems.

Gauge Pressure
  • Reference: Atmospheric pressure
  • Output: 4-20mA, 2-wire
  • Accuracy: ±0.5% FS
  • Applications: Tank level, pumps
Absolute Pressure
  • Reference: Absolute vacuum
  • Output: 4-20mA, HART
  • Accuracy: ±0.25% FS
  • Applications: Vacuum systems
Differential Pressure
  • Two pressure ports
  • Output: 4-20mA, Modbus
  • Accuracy: ±0.1% FS
  • Applications: Flow measurement

Solenoid Valves (SOV)

Electrically operated valves for fluid control in industrial automation

Industrial Solenoid Valves

Solenoid valves for water, air, oil, and chemical applications

2/2-Way Solenoid Valve

3️⃣ Valve Types Based on Port Configurations

Type Function Ports Typical Use Symbol
2/2-Way Valve 2 ports, 2 positions IN, OUT On/off flow control for liquids/gases
3/2-Way Valve 3 ports, 2 positions P, A, R (Pressure, Actuator, Exhaust) Pneumatic cylinder control, single-acting
4/2-Way Valve 4 ports, 2 positions P, A, B, R Pneumatic directional control
5/2-Way Valve 5 ports, 2 positions P, A, B, EA, EB Double-acting cylinders
Pulse Jet Valve Special for pulse cleaning IN, OUT, Vent Bag filters / dust collectors
2/2-Way

Simple on/off control

3/2-Way

Single-acting cylinders

5/2-Way

Double-acting cylinders

Materials of Construction

Part Material Options Properties Typical Use
Body Brass, Aluminum, SS304/SS316 Corrosion resistance, strength Water, air, oil, corrosive fluids
Seals NBR, EPDM, FKM, PTFE Chemical/temperature compatibility Matches media & temperature
Coil Housing Plastic, Iron Environmental protection IP65/IP67 protection
Plunger/Core Stainless steel Magnetic properties, corrosion resistance All applications
Spring Stainless steel Reliable return force Normally closed/open valves

Key Specifications to Check

Specification Meaning Example
Pressure Range Min-max fluid pressure 0–10 bar, vacuum to 16 bar
Port Size Connection size 1/4″, 1/2″, 3/4″, BSP/NPT
Orifice Size Internal opening for flow 3mm, 5mm, 8mm, 10mm
Cv / Kv Value Flow coefficient Cv=1.2 (water flow capacity)
Seal Material Compatibility with fluid NBR (oil), EPDM (water)
Specification Meaning Example
Voltage & Power Coil electrical rating 24V DC, 110V AC, 230V AC
Temperature Range Max fluid temperature -10°C to +80°C, up to 180°C
Response Time Actuation speed 15ms opening, 10ms closing
Duty Cycle Continuous/intermittent 100% ED (continuous)
IP Rating Ingress protection IP65, IP67 (dust/waterproof)

Seal Material Selection Guide

Material Full Name Temp Range Compatible Media Not Compatible
NBR Nitrile Butadiene Rubber -30°C to +100°C Water, oils, fuels, air Ketones, ozone, weathering
EPDM Ethylene Propylene Diene -40°C to +150°C Hot water, steam, chemicals Mineral oils, fuels
FKM Fluorocarbon (Viton®) -20°C to +200°C Acids, chemicals, oils Ketones, amines, steam
PTFE Polytetrafluoroethylene -200°C to +260°C Almost all chemicals None (chemically inert)
Silicone VMQ -60°C to +230°C Food, medical, hot air Steam, acids, solvents

Operating Principles

Normally Closed (NC)
  • De-energized: Valve closed, no flow
  • Energized: Valve opens, flow passes
  • Applications: Safety shut-off, default closed
  • Power: Consumes power only when open
Normally Open (NO)
  • De-energized: Valve open, flow passes
  • Energized: Valve closes, stops flow
  • Applications: Ventilation, default open systems
  • Power: Consumes power only when closed

Solenoid Valve Selection Guide

Water Applications
  • Body: Brass, SS316
  • Seals: EPDM, NBR
  • Type: Direct-acting 2/2-way
  • Pressure: 0–16 bar
Pneumatic Applications
  • Body: Aluminum, Brass
  • Seals: NBR, Polyurethane
  • Type: 3/2, 5/2, 5/3-way
  • Pressure: Vacuum to 10 bar
Chemical Applications
  • Body: SS316, PTFE lined
  • Seals: FKM, PTFE
  • Type: Diaphragm or pinch valve
  • Pressure: 0–6 bar

Industrial Automation Products Overview

Product Category Key Brands Applications Key Features Typical Industries
PLC Controllers Siemens, Schneider Automation control, Process control Programmable logic, I/O handling Manufacturing, Process plants
Pressure Switches WIKA, Baumer Pressure monitoring, Safety control On/off switching, Adjustable setpoints Oil & Gas, HVAC, Water treatment
Solenoid Valves Various brands Fluid control, Pneumatics Electric actuation, Various port types Process, Manufacturing, Water
Pressure Gauges WIKA, Baumer Pressure indication, Monitoring Bourdon tube, Various ranges All industrial sectors

Technical Support & Contact

Complete Automation Solutions

We provide comprehensive automation products and solutions for industrial process control, including pressure instrumentation, valves, and control systems.

Pressure Products
  • WIKA pressure switches
  • Pressure gauges (WIKA/Baumer)
  • Pressure transmitters
  • Installation accessories
Valve Solutions
  • Solenoid valves (2/2 to 5/2 way)
  • Pneumatic valves
  • Process control valves
  • Manifolds and accessories
Technical Support
  • Product selection assistance
  • Application engineering
  • Installation guidance
  • Troubleshooting support
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