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PROSTOCK

PROSTOCK is a brand of replacement components for gas-fired heating and refrigeration systems, distributed globally by 3G Electric. The line covers direct ignition gas valves, thermostatic expansion valves, hermetic scroll compressors, and related controls. These parts are used in commercial and industrial heating equipment, air conditioning, heat pumps, and process cooling. The direct ignition gas valves are single-stage, slow-opening, and rated at 140,000 BtuH with a straight-thru configuration. They are designed for direct spark or hot surface ignition systems. The thermostatic expansion valves are offset-configuration units for R-410A, with a 3-ton capacity and an included distributor assembly. The scroll compressors are hermetic, for R-410A, with capacities from 26,400 to 45,000 BtuH and 1/2-inch discharge line connections. 3G Electric supplies these PROSTOCK components to maintenance and procurement teams worldwide. The catalog includes multiple compressor capacities and valve configurations to match specific system requirements. Each listing provides manufacturer part numbers, capacity ratings, and connection sizes. This allows buyers to cross-reference existing equipment and select compatible replacements. The PROSTOCK range focuses on interoperability with common ignition and refrigerant circuits. The gas valves support both direct spark and hot surface ignition, which are widely used in rooftop units, boilers, and make-up air heaters. The expansion valves and compressors are intended for R-410A systems, which remain common in commercial HVACR. 3G Electric maintains inventory of these parts and ships globally. Technical documentation, including capacity tables and wiring details, is available for each SKU. For plant engineers and maintenance managers, PROSTOCK components offer a way to standardize replacement parts across multiple heating and cooling assets. The valves and compressors are built to industry dimensional and performance standards, though specific certifications vary by model. Buyers should verify compatibility with their existing system before ordering. 3G Electric provides part number cross-referencing and specification support to reduce downtime. The PROSTOCK line is not a single product but a family of components that address gas ignition, refrigerant metering, and compression. This makes it relevant for facilities that operate mixed HVACR fleets. The direct ignition valves are available in at least two part numbers with identical ratings but different configurations, allowing for replacement flexibility. The scroll compressors come in several capacities, so a single brand can cover multiple tonnages. The thermostatic expansion valve includes a distributor assembly, which simplifies installation in multi-circuit evaporators. All products are listed with clear specifications to support procurement decisions. 3G Electric does not manufacture PROSTOCK parts; it distributes them. The company provides global logistics and technical assistance for the line. For buyers, this means access to PROSTOCK components without regional restrictions. The catalog is updated with new part numbers as they become available. Maintenance planners can use the PROSTOCK range to source drop-in replacements for aging gas valves, expansion valves, and compressors. The brand is not tied to any single equipment manufacturer, so it can be used across different original equipment brands. This flexibility is useful for facilities with diverse installed bases. 3G Electric supports the line with quote-based ordering and worldwide shipping. For specific applications, consult the product data sheets for temperature and pressure limits. The PROSTOCK brand is a practical option for MRO and OEM aftermarket needs in heating and refrigeration.

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About PROSTOCK

PROSTOCK is a brand of replacement components for gas-fired heating and refrigeration systems, distributed globally by 3G Electric. The line covers direct ignition gas valves, thermostatic expansion valves, hermetic scroll compressors, and related controls. These parts are used in commercial and industrial heating equipment, air conditioning, heat pumps, and process cooling. The direct ignition gas valves are single-stage, slow-opening, and rated at 140,000 BtuH with a straight-thru configuration. They are designed for direct spark or hot surface ignition systems. The thermostatic expansion valves are offset-configuration units for R-410A, with a 3-ton capacity and an included distributor assembly. The scroll compressors are hermetic, for R-410A, with capacities from 26,400 to 45,000 BtuH and 1/2-inch discharge line connections. 3G Electric supplies these PROSTOCK components to maintenance and procurement teams worldwide. The catalog includes multiple compressor capacities and valve configurations to match specific system requirements. Each listing provides manufacturer part numbers, capacity ratings, and connection sizes. This allows buyers to cross-reference existing equipment and select compatible replacements. The PROSTOCK range focuses on interoperability with common ignition and refrigerant circuits. The gas valves support both direct spark and hot surface ignition, which are widely used in rooftop units, boilers, and make-up air heaters. The expansion valves and compressors are intended for R-410A systems, which remain common in commercial HVACR. 3G Electric maintains inventory of these parts and ships globally. Technical documentation, including capacity tables and wiring details, is available for each SKU. For plant engineers and maintenance managers, PROSTOCK components offer a way to standardize replacement parts across multiple heating and cooling assets. The valves and compressors are built to industry dimensional and performance standards, though specific certifications vary by model. Buyers should verify compatibility with their existing system before ordering. 3G Electric provides part number cross-referencing and specification support to reduce downtime. The PROSTOCK line is not a single product but a family of components that address gas ignition, refrigerant metering, and compression. This makes it relevant for facilities that operate mixed HVACR fleets. The direct ignition valves are available in at least two part numbers with identical ratings but different configurations, allowing for replacement flexibility. The scroll compressors come in several capacities, so a single brand can cover multiple tonnages. The thermostatic expansion valve includes a distributor assembly, which simplifies installation in multi-circuit evaporators. All products are listed with clear specifications to support procurement decisions. 3G Electric does not manufacture PROSTOCK parts; it distributes them. The company provides global logistics and technical assistance for the line. For buyers, this means access to PROSTOCK components without regional restrictions. The catalog is updated with new part numbers as they become available. Maintenance planners can use the PROSTOCK range to source drop-in replacements for aging gas valves, expansion valves, and compressors. The brand is not tied to any single equipment manufacturer, so it can be used across different original equipment brands. This flexibility is useful for facilities with diverse installed bases. 3G Electric supports the line with quote-based ordering and worldwide shipping. For specific applications, consult the product data sheets for temperature and pressure limits. The PROSTOCK brand is a practical option for MRO and OEM aftermarket needs in heating and refrigeration.

Common Applications

  • Commercial rooftop units — PROSTOCK direct ignition gas valve 60-103901-01 for single-stage, slow-opening gas control in packaged heating sections.
  • Industrial boilers — PROSTOCK direct ignition gas valve 60-103901-02 rated at 140,000 BtuH for direct spark or hot surface ignition.
  • Air conditioning systems — PROSTOCK hermetic scroll compressor 55-107225-190 with 45,000 BtuH cooling capacity for R-410A circuits.
  • Heat pumps — PROSTOCK hermetic scroll compressor 55-107225-193 providing 32,500 BtuH cooling capacity and 1/2-inch discharge connection.
  • Process cooling — PROSTOCK hermetic scroll compressor 55-107225-184 with 26,400 BtuH capacity for medium-temperature refrigeration.
  • HVACR refrigerant control — PROSTOCK RCFZ thermostatic expansion valve 61-108685-04 for R-410A, 3-ton, offset configuration with distributor assembly.

Frequently asked questions

Common questions about PROSTOCK from 3G Electric.

What are the key specifications of PROSTOCK direct ignition gas valves?

PROSTOCK direct ignition gas valves are single-stage, slow-opening valves rated at 140,000 BtuH. They have a straight-thru configuration and are designed for use with direct spark or hot surface ignition systems. Two part numbers are available: 60-103901-01 and 60-103901-02. Both share the same capacity and operation type. These valves are typically used in commercial and industrial heating equipment such as rooftop units, boilers, and make-up air heaters. The slow-opening design allows for controlled gas admission, which can reduce ignition noise and pressure surges. The straight-thru body simplifies piping in tight spaces. When selecting a replacement, verify the manifold pressure, voltage, and ignition type match the original valve. 3G Electric stocks these valves and can provide part number cross-reference assistance.

What refrigerant and capacity options are available for PROSTOCK scroll compressors?

PROSTOCK hermetic scroll compressors are designed for R-410A refrigerant. They are available in several cooling capacities: 26,400 BtuH (55-107225-184), 32,500 BtuH (55-107225-193), 38,000 BtuH (55-107225-194), 39,000 BtuH (55-107225-186), and 45,000 BtuH (55-107225-190). All models have a 1/2-inch discharge line connection. These compressors are used in air conditioning, heat pumps, and process cooling applications. The hermetic design means the motor and compressor are sealed within a welded shell, which reduces leakage risk. When replacing a compressor, match the capacity, refrigerant type, and electrical characteristics to the original. 3G Electric supplies these compressors globally and can assist with selection based on system tonnage and operating conditions.

What is the PROSTOCK RCFZ thermostatic expansion valve used for?

The PROSTOCK RCFZ thermostatic expansion valve is an offset-configuration valve for R-410A refrigerant systems. It is rated for 3 tons capacity and includes a distributor assembly. The valve regulates refrigerant flow into the evaporator, maintaining proper superheat. The offset configuration allows for installation in applications where space or piping layout requires a non-straight body. The included distributor assembly helps distribute refrigerant evenly across multiple evaporator circuits. This valve is suitable for air conditioning and heat pump systems. The manufacturer part number is 61-108685-04. When replacing a TXV, verify the refrigerant type, capacity, and connection sizes match the system. 3G Electric provides this valve as a direct replacement for compatible R-410A systems.

Are PROSTOCK gas valves compatible with both direct spark and hot surface ignition?

Yes, PROSTOCK direct ignition gas valves are designed for use with both direct spark ignition (DSI) and hot surface ignition (HSI) systems. The valve itself does not generate the ignition; it controls gas flow after the ignition source is proven. The single-stage, slow-opening operation is suitable for either ignition method. This compatibility makes the valve versatile for replacing failed valves in various heating equipment. However, the control board and ignition module must match the valve's electrical characteristics. Always confirm the voltage and wiring configuration before installation. 3G Electric lists the ignition type in the product specifications to help buyers select the correct valve for their system.

What should I check before ordering a PROSTOCK scroll compressor?

Before ordering a PROSTOCK scroll compressor, verify the following: refrigerant type (R-410A), cooling capacity in BtuH, discharge line connection size (1/2 inch for all listed models), electrical voltage and phase, and physical mounting dimensions. Also check the original compressor's part number and compare it to the PROSTOCK part number. The capacity should match the system's design load; a compressor with too high or too low capacity can cause performance issues. Confirm the suction and discharge line sizes and the presence of any required accessories such as crankcase heaters or accumulators. 3G Electric provides detailed specifications for each SKU and can assist with cross-referencing to other brands.

Does 3G Electric ship PROSTOCK parts internationally?

Yes, 3G Electric ships PROSTOCK parts globally. The company is headquartered in Singapore and serves customers worldwide. Orders can be placed for any listed SKU, subject to stock availability. Shipping methods and lead times vary by destination and order size. For urgent requirements, expedited shipping options may be available. 3G Electric provides quotes that include freight estimates. All parts are shipped from distribution centers or directly from suppliers. Buyers are responsible for import duties and taxes in their country. For specific shipping inquiries, contact 3G Electric with the part numbers and quantities needed.