Product Codes — WIKA Instruments

Order by product code for fast, error-free supply. The table below lists Ajal Arabia’s product codes for WIKA gauges and thermometers — quote the code on your enquiry or BOQ and we will match the exact item.

Need a range or connection size not listed here? Send us the specification and we will confirm availability from stock in Riyadh, with delivery across the Kingdom.

Gauge Selection Basics

• Pressure gauges — select by range (the operating pressure should sit in the middle third of the dial), connection size and position (bottom or back entry), and wetted-part material for the service fluid. For steam service, fit a siphon tube (pigtail) between the line and the gauge to protect the movement from live steam.
• Thermometers — bimetal thermometers are the plant-room standard for chilled water, condenser water, and heating circuits; confirm the stem length and connection suit the pipe or pocket.
• Siphon tubes and cock valves — accessories that protect and isolate the instrument: siphon tubes cool steam before it reaches the gauge, and cock valves allow the gauge to be isolated or removed for calibration without draining the line.

Frequently Asked Questions

Which WIKA pressure gauge product code should I order?

Quote the product code — PGW0014, PGW0012, or PGULFMW0012 — on your enquiry and we will match the exact gauge variant from stock. If you are unsure which suits your system, tell us the operating pressure and connection requirement and we will recommend the right one.

Do I need a siphon tube with my pressure gauge?

On steam service, yes — a siphon tube (pigtail) traps condensate between the live steam and the gauge, protecting the bourdon tube from overheating. On water and air services it is not normally required. Ajal Arabia supplies siphon tubes alongside the gauges.

What is a cock valve used for on a gauge?

A gauge cock valve sits between the line and the gauge so the instrument can be isolated, vented, or removed for calibration without shutting down the system. Specify one on every permanent gauge installation — it is cheap insurance for maintenance.