Pressure Control Accessories - WIKA

Pressure snubbers smooth out pressure spikes and pulsations before they reach gauges, switches and transmitters. Damping the surges gives steadier readings and helps instruments last longer, especially near pumps, compressors and quick-closing valves.

Snubber Types

• Porous metal disc snubbers – sintered elements for gases and light liquids
• Piston snubbers – self-cleaning action for dirtier fluids
• Adjustable snubbers – tune the damping to your system
• Brass and stainless steel – match media compatibility

Choosing a Snubber

Select the element grade based on fluid viscosity: finer discs for air and water, coarser for oils. Match thread sizes to your gauge and process connection. For very severe pulsation, combine a snubber with a liquid-filled gauge.

Centro carries pressure snubbers and gauge accessories to protect your instruments.

Related categories: Pressure Control Accessories | Manifold Valves | Gauge Cock Valve | Instrument Valve | Syphons

Instrument manifold valves mount between process piping and pressure or differential pressure transmitters. A manifold lets technicians isolate, equalize, vent and calibrate instruments without shutting down the process.

Manifold Types

• 2-valve manifolds – isolate and vent gauge and pressure transmitters
• 3-valve manifolds – isolate and equalize DP transmitters
• 5-valve manifolds – add vent and calibration ports for DP service
• Direct-mount and remote-mount – fit your transmitter installation
• Stainless and alloy bodies – for corrosive and high-pressure service

Choosing a Manifold

Match the manifold to the transmitter type and connection (flanged or NPT), and the process pressure and temperature. Choose hard or soft seats according to temperature and leak-tightness requirements. Integrated manifolds save space and leak points.

Centro supplies instrument manifold valves for pressure and DP transmitter installations.

Related categories: Pressure Control Accessories | Gauge Cock Valve | Pressure Snubber | Instrument Valve | Syphons

Gauge cock valves isolate pressure gauges, switches and transmitters from the process so they can be removed, replaced or calibrated without shutting down the line. They're a small, inexpensive part that saves a lot of time.

Gauge Cock Options

• Tee handle and lever handle – quick quarter-turn operation
• Brass, carbon steel and stainless – match media and environment
• Male and female NPT connections – fit common gauge installations
• Bleed and vent options – safely relieve trapped pressure
• Needle-style gauge valves – higher pressure service

Choosing a Valve

Select the material, pressure rating and connection size for your gauge and process. On steam, use a syphon between the gauge cock and gauge. Bleed valves make gauge removal safer.

Centro carries gauge cock valves and pressure accessories for instrument installations.

Related categories: Pressure Control Accessories | Instrument Valve | Manifold Valves | Syphons | Pressure Snubber

A syphon is a simple yet effective tube-shaped device that consists of two legs bent in a U-shape. The purpose of the syphon is to transfer liquid from a higher container or location to a lower one without the need for any external pumping or suction. One leg of the syphon is inserted into the higher container or source of liquid, while the other leg is placed into the lower container. The liquid in the higher container initially fills the syphon's legs, creating a continuous flow due to the difference in pressure between the two ends. Gravity then causes the liquid to flow through the syphon, moving from the higher to the lower container. Syphons are commonly used in various applications, including laboratory experiments, aquariums, irrigation systems, and fluid transfers in industrial processes. They provide a simple and efficient means of transferring liquids over a vertical or horizontal distance without the need for complex pumps or mechanical devices.

Related categories: Pressure Control Accessories | Instrument Valve Accessories | Instrument Valve | PT Plugs | Gauge Cock Valve

Instrument valve accessories complete instrument installations with handles, mounting brackets, plugs, caps and fittings that keep valves secure and serviceable.

Accessories Available

• Replacement handles – standard and color-coded
• Mounting brackets – panel and pipe mounting
• Plugs and caps – seal unused ports
• Locking devices – prevent unauthorized operation
• Fittings and adapters – connect tubing and pipe

Choosing Accessories

Match accessories to your valve series and connection types. Color-coded handles help identify functions.

Centro supplies instrument valve accessories.

Related categories: Pressure Control Accessories | PT Plugs | Syphons | Instrument Valve | Gauge Cock Valve