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DESCRIPTION The new XR-81 Finned Top model is an all welded system which combines the proven durability and performance of US Gauge 4-1/2" SOLFRUNT 1981 dry 316L SST process gauge and a modified M&G all welded 316L SST diaphragm seal with male threaded connection. The new design features cooling fins added to the bottom of the seal body. The fins allow for higher operating temperature while protecting the pressure gauge as well as increased strength to preventing rupture. The fins are able to reduce the process temp from 225°F to 160°F by the time it sees the bourdon tube. The option of including a flushing port to the seal is available.
This system is NACE MR-01-03 and NACE MR-01-75/ISO 15156-3 compliant and offers superior protection in corrosive and hazardous media applications than standalone gauges. Designated operating pressure is 3000 psi at 100°F and has a maximum pressure rating of 5000 psi.
FEATURES • Cost effective
• Best solution for operator safety • Leak-proof – all joints are welded • Seamless bourdon tube gauge standard • Compact size • Tamper resistant • 4:1 safety ratio
• Designed to withstand 4X of full scale pressure on the gauge
APPLICATIONS • Refineries
• Petrochemical Manufacturing • Oilfield Equipment • Chemical Manufacturing
SPECIFICATIONS Gauge Ranges
Process Connection Seal Wetted Parts
Seal Fill Fluid Options
Model 1981 with PET case, 316L SST socket and 316L SST seamless Bourdon tube From 0 to 15 psi to 0 to 3000 psi
½ NPT male connection standard, other connections available upon request
316L stainless steel, MONEL, HASTELLOY C bodies; 316L stainless steel, MONEL, HASTELLOY C and Tantalum diaphragms; other wetted materials may be available upon request
DC 200 silicone standard; other fills available upon request Orifice restrictors on gauge; flush port on seal, Sta-Kool™ cooling element, shatter-resistant window on gauge, and capillaries