The HDI 3300 Temperature Gauge System is an intrinsically safe, battery-powered electronic temperature measurement device commonly used in oil and gas operations requiring precise temperature monitoring. Typical applications include high-pressure nitrogen pumping, geothermal and mud-based drilling, well control manifolds, flare stacks, and bulk liquid storage.

The system consists of a digital gauge display, sensor assembly, and interconnecting cable. The sensor, usually a Resistance Temperature Detector (RTD), is housed in a durable stainless steel case with various mounting options like 2-inch Male NPT, hammer unions, or flanges, allowing flexible installation near the temperature source.

The display features an LCD with numeric and analog bar graph outputs, providing temperature readings with 0.1-degree resolution and ±0.5% full-scale accuracy over a range of -50 to 150°C (-50 to 300°F). Users can switch between Celsius and Fahrenheit. It includes 4-20mA and 0-1 VDC output options for integration with remote monitoring, data logging, or control systems, and supports external power inputs.

Designed for ease of maintenance, the system is field-repairable with a replaceable battery pack. The sensor and display are factory-matched and calibrated, requiring recalibration if components are replaced. The gauge fits standard 6-inch panel cutouts and supports multiple mounting patterns. Cable lengths are customizable up to 200 feet or more.

The system operates reliably in temperatures from -40°C to +70°C and is certified for hazardous environments, with a rugged stainless steel sensor housing to withstand harsh field conditions.

The 3300 is well-suited for environments requiring precise, continuous temperature monitoring, including high-pressure drilling, well control, and fluid storage applications. Its intrinsically safe design provides dependable operation in hazardous locations without compromising safety. The solid-state electronics and durable construction reduce maintenance and downtime, while versatile mounting options allow placement close to the measurement point for accurate readings. Featuring clear numeric and bar graph displays along with remote output capabilities, the system supports timely decision-making and integrates easily with larger monitoring setups, enhancing process control and operational safety in demanding conditions.

The Gauge Root Valve Bleed Valve with Vent Screw is designed for oil and gas applications where controlled pressure release is critical. It is installed on pressure gauges and instrumentation lines to provide a safe and easy way to vent trapped pressure. The vent screw allows operators to gradually release pressure without removing the valve, reducing the risk of sudden pressure surges that could damage equipment or compromise safety.

This valve is rated for 6000 PSI standard working pressure, with higher pressures available on request. It is built to ASME B16.34 standards and produced under ISO 9001, PED, and ATEX quality systems, ensuring reliability and compliance with industry requirements. The design includes a metal-to-metal seal for high-pressure and temperature applications, a durable vent screw that prevents leakage, and easy operation even in confined spaces. Its construction allows for long-term durability and minimal maintenance, providing safe and accurate operation for critical oil and gas instrumentation systems.

The Bore Through Male Connector NPT fittings are engineered to create robust, leak-free connections in high-pressure systems. These fittings feature a bore-through design, allowing fluid or gas to flow freely without obstruction, which minimizes pressure drop and ensures consistent system performance. Made from high-quality materials, they are suitable for pressures up to 6000 PSI and are manufactured to meet ASME B16.34, MSS-SP-99, and ASME B31.3 standards.

The NPT (National Pipe Thread) male connection ensures a tight seal when connected to compatible threaded components, providing reliable performance in oil and gas, chemical, and process industries. The fittings are precision-machined for proper ferrule deformation, which ensures leak-free connections under vibration, impulse, or vacuum conditions. Silver-plated threads reduce friction and prevent galling, while the bore-through design supports high flow rates without obstruction.

Bore Through Male Connector NPT fittings are easy to install and maintain. They are finger-tight for initial assembly and then wrench-tightened to achieve a secure seal, reducing installation errors and downtime. Their design allows disconnection and reconnection without compromising sealing integrity, making them suitable for applications requiring frequent maintenance or system modifications.

These fittings are unique in combining full-flow capability, high-pressure performance, and reliable sealing in a compact, easy-to-install form, making them ideal for demanding oil and gas systems, process lines, and high-pressure instrumentation setups.

The Gauge Root Valve Female x Female 1/4” NPT is a small but essential valve used to protect and control pressure instruments, like gauges and transmitters, in fluid or gas systems. Its female x female connection allows it to connect directly to two male-threaded fittings, making installation simple and reducing the risk of leaks.

This valve can handle pressures up to 6000 PSI and operates safely across a wide temperature range. The internal stem is designed with a back seat and the packing is placed below the threads, keeping the threads protected from the process media. A self-centering, non-rotating tip ensures a tight seal every time, preventing leaks.

It also features a removable “T” handle for easy turning with low effort, smooth rolled threads for long-lasting use, and a dust cap to prevent dirt or debris from entering the valve. Each valve is factory tested with nitrogen at 1000 PSI to ensure it seals correctly and operates reliably. This type of valve is ideal for isolating and protecting pressure instruments in chemical, oil and gas, and industrial processes.

The HDI 2250 Valve Position Indicator System provides a reliable method to monitor the open or closed status of manual and hydraulically operated gate valves on choke manifolds. It offers two modes of position verification: a clear visual indicator mounted directly on the valve, and an electronic signal transmitted remotely to control rooms or monitoring systems. This dual feedback delivers real-time valve position information both locally and from a distance, enhancing operational control and safety.

The system is compatible with a wide range of rising and non-rising stem gate valves from various manufacturers, adding position monitoring without compromising valve integrity or certification. An adapter enables installation on valves that lack built-in position feedback. The sensor is an inductive Namur type housed within a rugged 316 stainless steel case, engineered for hazardous oilfield environments. It operates on a 5 to 25 volts DC power supply, making it suitable for integration with most industrial control systems.

Weighing 15.3 pounds with the junction box mounted, the 2250 is built for durability and long-term performance in demanding onshore and offshore conditions. Once installed, it requires minimal maintenance, reducing operational downtime.

The system connects easily to local displays and remote monitoring platforms, offering a comprehensive view of valve positions across the manifold. It supports both Namur and proximity sensors, providing flexibility to meet different installation requirements.

The 2250 stands out for its ability to retrofit manual valves without modification, its robust construction for harsh environments, and dual visual and electronic position reporting. These features make it a practical, dependable choice for improving safety and operational awareness in oil and gas valve management.

The Double Block and Bleed Valve with Flange x Thread connections and Ball x Ball isolation with Needle Drain is a compact assembly designed to provide dual isolation in oil and gas systems. The two ball valves ensure reliable upstream and downstream shutoff, while the needle drain allows controlled venting, sampling, or pressure release between the isolation points. This design reduces the number of flanged joints and potential leak paths, improving safety and reliability in instrument and process applications.

The valve is available in sizes from ½ inch to 2 inch and pressure classes from 150 to 2500, making it suitable for a wide range of process conditions. It can be manufactured in various materials including SS 316, SS 316L, Duplex, Super Duplex, Hastelloy, Inconel, and Monel, and can be supplied to meet NACE MR-01-75 requirements. The assembly is built to recognized standards including ASME B16.34, API 6D, and ISO 17292 and is tested to ensure proper operation, minimal leakage, and long service life.

This valve is ideal for instrument isolation, gauge protection, chemical injection, sampling connections, and other applications where safe and reliable dual isolation is required. Its compact and integrated design reduces installation complexity, simplifies system layout, and provides a safer and more efficient solution compared to assembling individual valves.

The Double Block & Bleed Valve with Flange x Flange connections and Ball x Ball isolation with Needle drain is designed to provide reliable dual isolation in oil and gas applications. This valve allows two points of isolation in a single assembly, reducing leak paths and ensuring safe maintenance downstream of the first isolation point. The integrated needle drain safely vents any trapped pressure between the two isolation valves.

This valve is available in flange sizes from 1/2” (DN 15) and can be used in applications requiring Class 150 ratings. Reduced and full bore options are offered to accommodate varying flow requirements. The design is suitable for direct or remote mounting of instruments, chemical injection connections, gauge isolation, instrument drains, and piping/instrument interfaces.

Manufactured in materials such as SS 316, SS 316L, Duplex, Super Duplex, Hastelloy, Inconel, and Monel, the valve can also meet NACE MR-0-175 requirements where corrosion resistance is necessary. The assembly conforms to recognized standards including ASME B16.34, API 6D, and ISO 17292. Its compact design allows easier installation in space-constrained environments while minimizing stress from loading or vibration.

This configuration is particularly useful in oil and gas operations where dual isolation is needed for maintenance, sampling, or chemical injection, providing a safe and efficient solution in instrument and piping systems.

Hex Reducing Nipples Male NPT are pipe fittings designed to connect two female-threaded pipes of different diameters while maintaining a secure and leak-resistant seal. The male tapered threads provide a tight connection that prevents fluid leakage, which is especially important in high-pressure systems.

These fittings are widely used in the oil and gas industry, chemical processing, and instrumentation applications where a reduction in pipe size is required without adding extra joints.

They are manufactured from high-quality materials such as stainless steel, brass, and other compatible alloys, ensuring durability and resistance to corrosion. The fittings are precision-machined from bar stock to provide burr-free internal surfaces for smooth flow and to reduce turbulence within the system. Threads are carefully capped and packed to prevent damage during transit.

Hex Reducing Nipples are rated for pressures up to 10,000 PSI and comply with ASME B1.20.1, SAE AS71051, ISO 7-1, and ISO 228 standards. They are designed for reliable performance in ambient temperatures from -28 to 37°C (-20 to 100°F) and support efficient installation with standard wrenches thanks to the hex shape, which allows secure tightening. These features make them suitable for high-pressure and instrumentation piping systems where both reliability and traceability are required.

Pipe Fittings Adapters Female to Male NPT are designed to connect a female-threaded pipe or fitting to a male-threaded pipe, providing a secure and leak-resistant joint. They are made from high-quality materials such as stainless steel, brass, and carbon steel to ensure durability and corrosion resistance in demanding environments.

The adapters are suitable for a wide range of pressures, with standard ratings up to 10,000 psi, and conform to industry standards including ASME B1.20.1, SAE AS71051, ISO 7-1, and ISO 228.

These adapters are used extensively in oil and gas applications, instrumentation, and process control systems where it is necessary to adapt different thread types or sizes. Their precise threading ensures maximum engagement and leak-tight connections, making them reliable for high-pressure or critical systems.

Available in sizes ranging from 1/8 inch to 1 inch, these adapters support efficient and safe connections in pipelines, instrumentation panels, and chemical or petrochemical systems. Their compact design allows for installation in tight spaces without compromising performance, and they are free from burrs or debris to maintain smooth flow paths.