Process Instrumentation

As one of the Mid-Atlantic's premier supplier of process control products, Tri-State Technical Sales carries a wide range of high quality process instrumentation. The our product offering includes pressure, temperature, level and flow instrumentation, as well as instrument valves and manifolds.

Pressure Indicators

• Gauges designed for Commercial, General, Duragauge, Receiver, Special and Test services.
• Case sizes from 1 to 8 inches in aluminum, phenolic or stainless steel.
• Accuracy ranges from .1% to 2% of full scale.
• Pressure ranges from 10" H2O to 100,000 PSI.
• Bronze, Stainless Steel and Monel wetted internal parts.
• Digital Testers and Handheld Calibrators.
• Accessories to customize Gauges to your exact specifications. 

Transmitters

• Choice of 1.0, 0.5 or 0.25% accuracy
• Pressure ranges from 5 psi through 10,000 psi
• 17-4 pH and 316L SS sensors available
• 304 SS case in standard, welded or explosion proof construction
• Six output signals to choose from
• Optional absolute pressure ranges available
• Available externally adjustable zero and span access
• FM, UL, CSA and ATEX listings available 

Pressure Switches

• For all applications: general service, OEM, process, refinery, corrosive environments & sanitary.
• Enclosures of epoxy-coated aluminum, 316 stainless steel, NEMA 4, 4X or explosion proof NEMA 7/9.
• Single or dual set points, fixed or adjustable deadband, 1 or 2 SPDT contacts.
• Stainless steel, Buna, Viton ®, Teflon ® & Monel wetted parts.
• Set points ranging from vacuum to 20,000 PSI.

Regulators & Pneumatic/Electro-Pneumatic Controls

• Pressure Regulators with a wide selection of ranges & capacities, providing sensitivity, accuracy, low output drop, & immunity to pressure variations.
• Volume Boosters featuring high capacity, fast response & stability, wide ranges of signal to output ratios, pipe sizes & flow capacities.
• I/P, E/P, D/P, P/I Transducers with extensive combinations of inputs & outputs, such as: analog current or voltage, 8-Bit parallel digital, standard output 3-15 psig.
• Pneumatic Relays for positive biasing, positive/negative biasing, reversing, averaging, and computing.
• Full line of pneumatic Filters and Lubricators to keep your air supply running clean.

Isolators

• Diaphragm Seals with over 30,000 variations in styles and materials.
• ISO Rings in sizes 2" thru 20".
• ISO Spools in sizes 1" thru 2"

Temperature Indicators

• Switches with all the same features as the pressure switches above with temperature ranges from -40°F to 750°F & -40°C to 400°C. Direct or Remote mounting.
• Bimetal Thermometers offering various case sizes from 2" to 5", Maxivision dials, temperature ranges -80°F to 1000°F & -60°C to 550°C, hermetically sealed, accuracy of 1% of span, rear, lower or everyangle connections, stem lengths 2.5" to 24" and all welded stainless steel construction.
• Thermowells for isolating Thermometers from pressure and process media.
• Vapor Thermometers for commercial grade applications.
• Digital Thermometers & RTD's switchable from °F to °C ranging -150°F to 900°F & -100°C to 500°C.
• Duratemp molecular sieve type thermometers for remote or direct mounting.

Manifolds & Instrument Valves

• 2 Valve Manifolds
• 3 Valve Manifolds
• 5 Valve Manifolds
• Rigid Mount Manifolds
• Specialty Manifolds
• Bellows Stem Seal
• Bleed Valves
• Block and Bleed Valves
• Gauge/Block Valves
• High Temperature
• Orifice Block Valves
• Monoball Valves
• Monoflange Valves
• Monoweld Valves

Instrument Tubing Bundles

• TubeTrace, with “cut-to-length” BSX self-regulating heat tracing.
• TubeTrace, with “cut-to-length” FP constant watt heat tracing.
• TubeTrace, with “cut-to-length” HPT power-limiting heat tracing.
• TubeTrace, with “cut-to-length” HTSX self-regulating heat tracing.