Model 232.50
All-stainless-steel Bourdon tube process pressure gauge to EN 837-1 and ASME B40.100, with 316L wetted parts and an S1 safety case. Nominal sizes 63, 100 and 160 mm, scale ranges 0-0.6 to 0-1,600 bar.
Prices on request. Contact us for availability and quotations.
The WIKA model 232.50 is a Bourdon tube pressure gauge built entirely from stainless steel for the process industry. Both wetted parts - the process connection and the Bourdon tube - are stainless steel 1.4404 (316L), and the movement is stainless steel, which suits the instrument to aggressive liquid and vapour-phase media and to aggressive ambient conditions in chemical, petrochemical, hydrocarbon processing, power and water treatment plant.
The case is a safety pattern to level S1 of EN 837-1, with a blow-out device on the case back (NS 100 and 160) or circumference (NS 63). The window is laminated safety glass, polycarbonate at NS 63, and the bayonet ring is stainless steel. Scale ranges of 0 ... 0.6 to 0 ... 1,600 bar are offered, with accuracy class 1.6 at NS 63 and class 1.0 at NS 100 and 160.
Model 232.50 is the unfilled instrument. Where high dynamic pressure loads or vibration are present, the liquid-filled version is ordered as model 233.50 - a different model number, not a field modification of a 232.50. Unfilled instruments carry a much wider medium temperature range, -40 ... +200 °C, against -20 ... +100 °C for a glycerine-filled 233.50.
When ordering, specify nominal size, scale range and unit, process connection thread and location, case material (1.4301 / 304 or 1.4571 / 316Ti), and whether IP66 is required.
| Standard | EN 837-1, ASME B40.100 |
|---|---|
| Nominal Size (NS) | Ø 63 mm [2 1/2"], Ø 100 mm [4"], Ø 160 mm [6"] |
| Scale Range | 0 ... 0.6 to 0 ... 1,600 bar [0 ... 10 to 0 ... 20,000 psi]; vacuum and compound ranges available |
| Accuracy Class | NS 63: class 1.6 (ASME grade A); NS 100 and 160: class 1.0 (ASME B40.100 grade 1A) |
| Wetted Materials | Process connection and Bourdon tube stainless steel 1.4404 (316L) |
| Case | Safety level S1 per EN 837-1 with blow-out device; stainless steel 1.4301 (304) or 1.4571 (316Ti); bayonet ring; laminated safety glass window (polycarbonate at NS 63) |
| Case Filling | Model 232.50 without filling; model 233.50 with glycerine, glycerine-water mixture or silicone oil filling |
| Process Connection | G 1/8 B, G 1/4 B, G 1/2 B, M12 x 1.5, M20 x 1.5 (EN 837-1); R 1/4, R 1/2 (ISO 7); 1/4 NPT, 1/2 NPT (ANSI/B1.20.1); lower mount or lower back mount, centre back mount only at NS 63 |
| Medium Temperature | Unfilled -40 ... +200 °C; glycerine filling -20 ... +100 °C; silicone oil filling -40 ... +100 °C |
| Ingress Protection | IP65 per IEC/EN 60529; IP66 selectable for scale ranges from 0 ... 20 bar [0 ... 400 psi] |
| Country of Manufacture | Poland (WIKA Polska). |
