Hydro-Therm Series

Features
4½” Dial Size
Solid Front/Blow-Out Back
±0.5% Accuracy
Field Liquid Fillable
7″ • 9″ • 12″ Scale Sizes
The NEW Trerice Hydro-Therm is the ideal instrument for both hot and chilled water hydronic applications. The blue, organic “spirit” fill is easily read without the the environmental concerns of mercury. The sturdy Valox case is available in rigid straight or rigid 90˚angle configurations. The 2″ stem makes this the perfect instrument for smaller pipeline and other such applications. The 1/2 NPT brass thermowell is included.
How to Order

Dimensional Drawings

Complete Specifications
| Models | Wetted Parts |
| 450B (dry) 450LFB (liquid-filled) | Bronze tube, brass socket |
| 450SS (dry) 450LFSS (liquid-filled) | 316 Stainless steel* tube & socket |
| 450M (dry) 450LFM (liquid-filled) | Monel tube and socket (meets NACE MR 01.75) |
| Dial Size | 4½" |
| Fill | Glycerine. Other fills available. See Options & Accessories. |
| Movement | Stainless steel |
| Connection | Lower male or lower back male, ¼ or ½ NPT |
| Case | Fiberglass reinforced polypropylene, turret, solid front with blow-out back |
| Ring | Threaded fiberglass reinforced polypropylene |
| Window | Acrylic |
| Pointer | Micro adjustable, black finished |
| Dial Face | Aluminum, white background with black graduations and markings |
| Additional Features | Overload and underlay stops |
| Accuracy | ±0.5% Full Scale ASME B40.100 Grade 2A |
| Maximum Temperature | 450B, 450SS, 450M: 250°F (121°C) 450LFB, 450LFSS, 450LFM: 150°F (65°C) |
| Approximate Shipping Weight | 450B, 450SS, 450M: 2.2 lbs [1.00 kg] 450LFB, 450LFSS, 450LFM: 3.1 lbs [1.41 kg] |
| *Ranges over 10,000 PSI have Ni-Span-C tube. |