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CONTROL DEVICES

CONTROL DEVICES is a manufacturer of pneumatic safety valves, pressure and vacuum relief valves, and compressor controls, with a product line focused on industrial air systems. The brand supplies components used in compressed air networks, regenerative blower installations, and engine-driven compressor packages. 3G Electric stocks over 200 SKUs from CONTROL DEVICES, including soft seat and hard seat pneumatic safety valves, unloader valves, check valves, and throttle controls. These products are specified for applications requiring preset pressure relief, backflow prevention, or regulation of compressor output. The safety valves are available in brass or stainless steel constructions, with inlet sizes ranging from 1/8 in to 3/4 in (M)NPT and preset settings from 100 psi to 225 psi. Soft seat variants use silicone seating material for lower leakage rates, while hard seat versions employ metal-to-metal sealing for higher temperature tolerance. The pressure and vacuum relief valves for regenerative blowers are rated in inches of water column, with a 471 in wc preset limit and 5 in outside diameter, designed to protect blower systems from overpressure or vacuum conditions. Check valves in the line include in-line and in-tank configurations, with brass bodies and maximum pressure ratings up to 450 psi. Engine-driven compressor throttle controls are compatible with specific gas engine models, such as Honda 5.5 hp units, and provide pneumatic actuation for speed regulation. All CONTROL DEVICES products are manufactured to standard industrial specifications, with materials and pressure ratings clearly marked on each unit. 3G Electric supports global procurement of these components, offering logistics coordination for maintenance, repair, and operations (MRO) requirements in industrial facilities, water treatment plants, and pneumatic systems. The product range is suitable for plant engineers and maintenance managers who need reliable, off-the-shelf safety and control components for compressed air and blower systems.

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About CONTROL DEVICES

CONTROL DEVICES is a manufacturer of pneumatic safety valves, pressure and vacuum relief valves, and compressor controls, with a product line focused on industrial air systems. The brand supplies components used in compressed air networks, regenerative blower installations, and engine-driven compressor packages. 3G Electric stocks over 200 SKUs from CONTROL DEVICES, including soft seat and hard seat pneumatic safety valves, unloader valves, check valves, and throttle controls. These products are specified for applications requiring preset pressure relief, backflow prevention, or regulation of compressor output. The safety valves are available in brass or stainless steel constructions, with inlet sizes ranging from 1/8 in to 3/4 in (M)NPT and preset settings from 100 psi to 225 psi. Soft seat variants use silicone seating material for lower leakage rates, while hard seat versions employ metal-to-metal sealing for higher temperature tolerance. The pressure and vacuum relief valves for regenerative blowers are rated in inches of water column, with a 471 in wc preset limit and 5 in outside diameter, designed to protect blower systems from overpressure or vacuum conditions. Check valves in the line include in-line and in-tank configurations, with brass bodies and maximum pressure ratings up to 450 psi. Engine-driven compressor throttle controls are compatible with specific gas engine models, such as Honda 5.5 hp units, and provide pneumatic actuation for speed regulation. All CONTROL DEVICES products are manufactured to standard industrial specifications, with materials and pressure ratings clearly marked on each unit. 3G Electric supports global procurement of these components, offering logistics coordination for maintenance, repair, and operations (MRO) requirements in industrial facilities, water treatment plants, and pneumatic systems. The product range is suitable for plant engineers and maintenance managers who need reliable, off-the-shelf safety and control components for compressed air and blower systems.

Common Applications

  • Compressed air systems — CONTROL DEVICES soft seat safety valves (SB75-0A150) for overpressure protection on air receivers
  • Regenerative blower installations — CONTROL DEVICES pressure and vacuum relief valves (NBR20-0T017) for blower protection
  • Engine-driven compressor packages — CONTROL DEVICES throttle controls (TC63-4KA000) for pneumatic speed regulation
  • Industrial pneumatic networks — CONTROL DEVICES hard seat safety valves (SN50-1A100) for high-temperature relief applications
  • Compressor tank maintenance — CONTROL DEVICES in-tank check valves (P3850-1EP) for backflow prevention
  • Instrument air systems — CONTROL DEVICES in-line check valves (M2525-1WA) for directional flow control

Frequently asked questions

Common questions about CONTROL DEVICES from 3G Electric.

What materials are used in CONTROL DEVICES soft seat pneumatic safety valves?

CONTROL DEVICES soft seat pneumatic safety valves, such as the SB75-0A150, use a brass body with a silicone seat. The silicone material provides a conformable sealing surface that reduces leakage at lower pressures compared to hard seat designs. These valves are suitable for air and inert gas applications where tight shutoff is required. The brass construction offers corrosion resistance in typical industrial environments.

What is the difference between hard seat and soft seat CONTROL DEVICES safety valves?

Hard seat CONTROL DEVICES safety valves, like the SN50-1A100, use metal-to-metal sealing between the disc and seat, typically brass or stainless steel. They are more resistant to high temperatures and particulate contamination but may have higher leakage rates. Soft seat valves, such as the SB75-0A150, incorporate a silicone or elastomeric insert that provides a tighter seal at lower pressures, making them preferable for applications where minimal leakage is critical.

Are CONTROL DEVICES check valves available for in-tank mounting?

Yes, CONTROL DEVICES offers in-tank check valves, such as the P3850-1EP. This model features a 3/8 in FPT inlet and 1/2 in MPT outlet, with a brass body rated to 450 psi maximum pressure. It is designed for installation directly into compressor tanks or receiver vessels to prevent backflow of compressed air. The in-line check valve M2525-1WA is also available for pipe mounting.

What is the preset pressure range for CONTROL DEVICES hard seat safety valves?

CONTROL DEVICES hard seat safety valves are available with preset settings from 100 psi to 225 psi, depending on the model. For example, the SA12-1A225 is preset to 225 psi with a 1/8 in (M)NPT inlet, while the SA25-1A125 is preset to 125 psi with a 1/4 in (M)NPT inlet. These valves are factory-set and not field-adjustable, ensuring compliance with system pressure limits.

Can CONTROL DEVICES throttle controls be used with engines other than Honda?

The CONTROL DEVICES pneumatic driven compressor throttle control TC63-4KA000 is specifically designed for gas engine driven compressors and is listed as compatible with a Honda 5.5 hp engine with a 5/8 in stroke. For other engine models, you would need to verify the stroke length and mounting interface. 3G Electric can assist in cross-referencing specifications for alternative engines.

Does 3G Electric supply CONTROL DEVICES products?

Yes — 3G Electric (S) Pte. Ltd. supplies CONTROL DEVICES products. We stock the CONTROL DEVICES catalog and supply genuine factory-original products with full manufacturer warranty and technical support.