Efficient heating and cooling starts with reliable temperature and pressure data. American Thermowell threaded and socket weld thermowells keep sensors protected in chilled water, hot water and steam systems, so instruments can be pulled for service without shutting down or draining the loop. Gauge siphons protect pressure gauges from steam damage, and needle valves and 2-valve manifolds make it simple to isolate transmitters and switches. We offer stock and made-to-order sizes for new construction and retrofits.

Treatment plants put instruments up against corrosive chemicals and solids-heavy flows every day. American Thermowell orifice plates and meter runs provide dependable flow measurement, and grounding rings help magnetic flow meters read accurately. Stainless steel thermowells, needle valves and manifolds let crews isolate instruments safely for maintenance, while gauge siphons protect pressure gauges from surges in pump and blower lines.

High temperatures, high pressures and volatile products leave no margin for instrument failure in refineries and petrochemical plants. American Thermowell designs flanged, Van Stone and weld-in thermowells with wake frequency calculations to ASME PTC 19.3 TW-2016, with NACE-compliant materials and full NDT available. We also supply orifice plates, spectacle blinds, bleed rings, double block and bleed valves and seal pots for critical service applications.

Safe storage and product transfer depend on accurate temperature, pressure and flow readings. American Thermowell thermowells protect temperature sensors in tanks and transfer lines, so instruments can be serviced without draining the vessel. Meter runs, orifice plates and spectacle blinds support custody transfer and line isolation, while needle valves, manifolds and gauge siphons protect and isolate pressure instruments. Parts are made from traceable materials, with NDT and witness inspection available.

Meeting emissions and environmental regulations requires measurements you can trust. American Thermowell supplies thermowells and protection tubes for stack and scrubber temperature monitoring, orifice plates for gas and liquid flow, and injection and sample quills for chemical feed and sampling. For harsh service, we offer Hastelloy, Monel and titanium construction along with PTFE and other protective coatings to extend service life.

Food and beverage producers need equipment that is sanitary, food-safe and easy to clean. American Thermowell tri-clamp sanitary thermowells have an 8–12 micro-inch Ra polished finish and connect directly to sanitary process lines, so temperature sensors can be removed without exposing the product. Stainless steel needle valves, gauge siphons and flush rings support pressure monitoring and cleaning in breweries, dairies and bottling operations.

Hospitals and healthcare facilities count on clean, precise equipment for sterilization, high-purity water, medical gas and building systems. American Thermowell tri-clamp sanitary thermowells, polished to an 8–12 micro-inch Ra finish, protect sensors in autoclaves, clean steam and purified water lines. Stainless steel needle valves, manifolds and gauge siphons keep pressure instruments isolated and protected for safe calibration.

From grain dryers and storage bins to fertilizer and irrigation systems, farm and agribusiness equipment faces dust, moisture and chemical exposure. American Thermowell thermowells keep temperature sensors protected in dryers, bins and process piping, while gauge siphons, needle valves and manifolds protect and isolate pressure instruments. Orifice plates provide flow control in water, ammonia and chemical lines. Parts are available in carbon steel, stainless steel and specialty alloys to match your application.

Across upstream, midstream and downstream operations, American Thermowell supplies rugged flow and temperature hardware. Orifice plates, meter runs, orifice flange unions and RTJ holders deliver accurate gas and liquid measurement, while spectacle blinds and double block and bleed valves isolate lines safely for maintenance and pigging. NACE-compliant thermowells are designed to your specifications with full wake frequency calculations, and parts are available in flange ratings up to Class 2500.

Across upstream, midstream and downstream operations, American Thermowell supplies rugged flow and temperature hardware. Orifice plates, meter runs, orifice flange unions and RTJ holders deliver accurate gas and liquid measurement, while spectacle blinds and double block and bleed valves isolate lines safely for maintenance and pigging. NACE-compliant thermowells are designed to your specifications with full wake frequency calculations, and parts are available in flange ratings up to Class 2500.

Drug manufacturing calls for sanitary, fully traceable equipment that supports strict quality requirements. American Thermowell tri-clamp thermowells with an 8–12 micro-inch Ra finish protect sensors in reactors, CIP systems and purified water lines. Flush rings, needle valves and manifolds in stainless steel and Hastelloy let instruments be calibrated without interrupting the process. Certified, traceable materials are supplied with every order.

Safe and efficient power plant operation depends on accurate temperature, flow and pressure data. American Thermowell steam and feedwater thermowells are engineered to ASME PTC 19.3 TW-2016 with wake frequency analysis. Orifice plates and meter runs handle flow measurement, finned gauge siphons protect instruments from live steam, and seal pots isolate transmitters. Every part is inspected and tested before it ships, with full NDT available.

Corrosive and hazardous chemicals call for the right materials and dependable isolation. American Thermowell flush rings let diaphragm seal transmitters be flushed, vented and calibrated without removing them from service. Bleed rings, thermowells, orifice plates and needle valves are available in Hastelloy, Monel, Inconel, titanium, super duplex and Kynar, with PTFE, electroless nickel and other coatings for added protection.

Gas, water and district energy providers need consistent measurement across wide distribution systems. American Thermowell orifice plates, meter runs and orifice flange unions deliver accurate flow metering, and thermowells and gauge siphons protect temperature and pressure instruments in the field. Needle valves and manifolds isolate transmitters for safe on-site calibration. We deliver quality parts on time for new installations and ongoing maintenance.

Gas, water and district energy providers need consistent measurement across wide distribution systems. American Thermowell orifice plates, meter runs and orifice flange unions deliver accurate flow metering, and thermowells and gauge siphons protect temperature and pressure instruments in the field. Needle valves and manifolds isolate transmitters for safe on-site calibration. We deliver quality parts on time for new installations and ongoing maintenance.

In mobile, industrial and test equipment, hydraulic systems run at pressures where a leak or a failed gauge means costly downtime. American Thermowell needle valves and gauge root valves are rated to 6,000 psig, with a backseated stem that prevents blowout and non-rotating tips for bubble-tight shutoff. 2-, 3- and 5-valve manifolds mount pressure transmitters and switches, and gauge siphons dampen pressure spikes. A stainless steel locking pin secures the gland, and a dust cap keeps contaminants out.