The HDI 1522 Choke Position Indicator System is an electronic instrument designed to accurately measure and display the position of choke valves used in oil and gas production. Choke valves regulate the flow of oil, gas, or water from wells by adjusting the degree of restriction in the pipeline, which directly affects pressure control and production rates. The 1522 system provides highly precise position readings in one percent increments, ranging from fully closed (0%) to fully open (100%), enabling better management of well performance and enhanced safety.

This system uses solid-state electronics to convert mechanical valve movement into electronic signals via various potentiometer types—including linear, rotary, and retractable options—making it adaptable to a wide variety of choke valve designs and configurations. The position data is presented on a four-inch liquid crystal display that combines a numeric readout with a linear bar graph, allowing clear and immediate visualization of the choke’s exact position. The display is engineered for visibility from distances up to fifteen feet, suitable for typical field environments.

Powered by an internal, field-replaceable battery with approximately one year of continuous operation, the 1522 system minimizes maintenance requirements and eliminates the need for complex wiring. It also offers optional analog output signals, such as 4-20 mA or 0-1 V, enabling seamless integration with plant control systems, programmable logic controllers, data acquisition systems, or remote display units for centralized monitoring and automation.

The enclosure is constructed from UV-stabilized, impact-resistant polycarbonate and PBT alloy materials to ensure durability in harsh outdoor conditions. It is rated to operate reliably within a wide temperature range from -40°F to 176°F (-40°C to 80°C). The internal electronics are protected by a gasket seal to prevent dust and moisture ingress, maintaining performance and longevity.

Installation flexibility is enhanced through support for cable lengths up to 1,500 feet, allowing the gauge to be mounted in the most accessible or secure locations. Multiple sensor housing options and connector orientations simplify field installation and reduce the need for onsite customization, helping to minimize downtime and installation costs.

The 1522 Choke Position Indicator System delivers accurate, real-time choke valve position information in a robust, easy-to-install package. Its reliable performance, flexible integration capabilities, and low maintenance design support improved flow control, safer operations, and optimized production.

The Gauge Root Valve Male x Female 1/4” NPT is designed to provide reliable isolation and control for pressure measurement instruments in chemical, petrochemical, and oil and gas applications. It allows a secure connection between the process line and pressure gauges, ensuring accurate readings while preventing backflow and leakage. This size is commonly used where compact instrumentation connections are needed, offering precise control in tight piping configurations.

The valve is constructed and tested according to ASME B16.34 for pressure and temperature ratings and complies with ISO 9001, PED, and ATEX standards, confirming quality and suitability for use in hazardous or pressurized environments. It has a standard working pressure of 6000 PSI, with higher pressures available upon request. The metal-to-metal body and bonnet seal ensures high-pressure and temperature performance, and the self-centering, non-rotating stem tip provides consistent shutoff for leak-free operation.

Additional design features include a simple, adjustable gland retainer for stable packing, a back seat for added security, a removable T-handle for low torque operation, and a dust cap to protect the stem from contamination. All valves are 100% factory tested for seat and packing leakage using nitrogen gas at 1000 PSI, ensuring reliable performance. This valve is ideal for isolating and protecting pressure measurement instruments.

Tube Fittings Male Connector NPT are used to connect tubing directly to threaded pipe systems, ensuring a secure and leak-tight joint in fluid and gas applications. The male NPT threads allow compatibility with standard pipe threads.

These fittings are unique due to their twin ferrule design, which provides a strong mechanical grip on the tubing while creating a reliable seal without requiring welding or additional sealants. The precision-machined ferrules deform evenly to prevent leaks, even under vibration, impulse, or high-pressure conditions.

Straight fittings are manufactured from bar stock, and shaped fittings are made from forgings, offering high structural strength. The case-hardened back ferrules and silver-plated female threads reduce wear and prevent galling, while the radius junction in elbows maintains smooth flow.

Installation is simplified: the tubing is inserted fully to the shoulder of the fitting, and the nut is tightened to specific torque, producing a secure connection. Male Connector NPT fittings are ready for immediate use and can be disassembled and retightened if needed.

Their combination of threaded pipe compatibility, twin ferrule sealing, and ease of installation makes them reliable and widely used in demanding industrial applications.

The Check Valve Poppet Type with 3/8" NPT tube ends is a compact valve designed to allow flow in one direction while preventing reverse flow in hydraulic, pneumatic, and industrial systems. It features a spring-loaded poppet mechanism that opens when forward pressure exceeds the cracking pressure and closes immediately when flow attempts to reverse, ensuring reliable protection for pumps, compressors, and other critical equipment.

Rated for a standard working pressure of 6,000 psi, with optional higher-pressure ratings up to 10,000 psi, this valve is suitable for demanding applications in oil and gas, chemical processing, instrumentation, and general industrial environments. The 3/8" NPT tube ends provide secure, leak-tight connections and easy integration into medium-diameter piping or tubing systems.

The poppet design minimizes pressure drop while delivering fast response and tight sealing, reducing the risk of backflow and system inefficiency. Built from durable materials such as stainless steel, Duplex, Super Duplex, Hastelloy, Inconel, or Monel, the valve offers long service life even in corrosive or high-pressure conditions. Factory testing ensures each valve meets standards for cracking and reseal performance, with heat code traceability for full material verification.

This type of valve is particularly effective in applications requiring precise flow control, compact installation, and reliable one-way operation, making it an essential component for maintaining system integrity and protecting valuable equipment.

The Panel Mounted Ball Valve, 2-Way Female × Female, is an isolation valve designed to control, start, or stop fluid flow in oil and gas piping systems. Its 2-way configuration allows flow in either direction between two ports, providing reliable on/off operation for process lines, sampling, injection systems, or bypass lines.

The female × female connections provide secure inline installation without the need for additional fittings, reducing potential leak points and simplifying system integration. The panel-mounted design enables operation from a control panel, making it suitable for applications where multiple valves are centralized or access to the pipeline is limited.

The valve features a floating ball design that ensures leak-proof shut-off under high-pressure conditions. Operation is achieved via a quarter-turn handle, which indicates flow direction and allows fast, low-torque control. The three-piece construction facilitates easy installation, maintenance, and replacement of internal components. It is factory tested for seat and stem leakage and is available in a range of corrosion-resistant materials including SS 316, SS 316L, Duplex, Super Duplex, Hastelloy, Inconel, and Monel. Optional compliance with NACE MR0175 and fire-safe designs make it suitable for demanding industrial environments.

Angle Pattern Needle Valves Male x Female are designed to control the flow of liquids or gases in a piping system. The angle pattern allows the flow to change direction by 90 degrees, reducing piping complexity and minimizing pressure drop.

The male x female configuration enables easy connection to different pipe types and sizes, providing flexibility for installation in various system layouts. These valves are suitable for high-pressure applications, ensuring reliable and leak-free operation.

In oil and gas operations, they are used for controlling flow to instruments, transmitters, or equipment where space is limited and accurate flow control is needed. Metal-to-metal seals and durable stems ensure long-term performance under demanding conditions.

The 3/8" poppet type check valve with male × female NPT connections is designed for uni-directional flow control and backflow prevention in oil and gas systems. The poppet mechanism provides fast response to flow changes and a positive seal under pressure, ensuring protection of pipelines, pumps, and equipment from reverse flow or pressure transients.

The 3/8" size is suitable for small to medium diameter lines, instrumentation, sampling, and control applications. Male × female NPT connections allow secure inline installation, reducing potential leak points and enabling integration into existing piping without additional adapters.

The valve has a standard working pressure of 6000 psi, with optional configurations rated up to 10000 psi. Selectable cracking pressures range from 1/3 to 25 psi, allowing precise adjustment for system requirements. Construction materials include corrosion resistant SS 316, SS 316L, Duplex, Super Duplex, Hastelloy C276, Inconel 625, Monel 400, and Brass, providing durability in harsh oil and gas environments.

All valves are factory tested for cracking and reseal performance, with pneumatic testing at 1000 psig to verify seat integrity. Heat code traceability ensures material verification, and additional testing including vibration, temperature, and helium is available for critical applications requiring high reliability.

Gauge adapters with a female ISO parallel thread to male NPT are small but essential components used to connect measurement instruments, such as pressure gauges or transmitters, to piping systems in industrial and oil and gas applications.

The female ISO thread screws directly onto the instrument, while the male NPT thread connects securely to the pipe or tube, creating a tight and leak-resistant connection.

These adapters are made from high-quality materials such as stainless steel or brass, which makes them durable and resistant to corrosion, even in harsh environments. They are designed to handle high pressures, up to 10,000 PSI, ensuring that instruments provide accurate readings without risk of failure.

They follow international thread standards including ASME B1.20.1, SAE AS71051, ISO 7-1, and ISO 228, which guarantees compatibility with other equipment and ensures reliable performance in critical systems. This makes them a practical and dependable choice for monitoring and controlling fluids.