Mini & Compact
Diaphragm Seals
866 It is recommended to place a needle valve, ball valve or gauge cock in line before every pressure gauge installation.
Selection of the proper diaphragm seal is the sole responsibility of the user. Temperature and pressure limitations must be considered. Please refer to the Diaphragm Seal Design & Operation Section of this catalog. Improper application may cause failure of the seal, resulting in possible personal injury or property damage.
For correct use and application of all diaphragm seals, please refer to Diaphragm Seal Standard ASME B40.2.
How to Order
Dimensional Drawings
Complete Specifications
| Models | Wetted Parts |
| D82B (dry) D82LFB (liquid-filled) | Bronze tube, brass socket Lead-Free (PBF) Meets NSF/ANSI Standards 372 and 61 |
| D83SS (dry) D83LFSS (liquid-filled) | 316 Stainless steel tube & socket |
| Dial Size | 1½", 2", 2½", 4" |
| Fill | Glycerine. Other fills available. See Options & Accessories. |
| Movement | D82: Brass D83: 316 Stainless steel |
| Connection | Lower male or center back male, (Lower back male 4" Dial only) |
| Case | 304 stainless steel, satin finished, stem-mounted flangeless |
| Ring | Crimped 304 stainless steel |
| Window | Acrylic |
| Pointer | Plain, black finished |
| Dial Face | Aluminum, white background with black graduations and markings |
| Accuracy | ±1.6% Full Scale (1% available as an option) |
| Maximum Temperature | 150°F (65°C) |
| Approximate Shipping Weight | 1½" Dial Size: 0.4 lbs [0.18 kg] 2" Dial Size: 0.4 lbs [0.18 kg] 2½" Dial Size: 0.5 lbs [0.23 kg] 4" Dial Size: 1.0 lbs [0.45 kg] |
Design and Operations
Options and Accessories
Download D80 PDF