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MERCOID

MERCOID, a brand with a history dating back to the early 20th century, is recognized for its pressure and temperature controls, transmitters, and switches used in industrial process applications. The brand is particularly known for its mercury-switch-based controls, though modern product lines have expanded to include electronic and explosion-proof designs. 3G Electric supplies a range of MERCOID products, including pressure switches, differential pressure transmitters, and mounting accessories, catering to applications in hazardous locations and general industrial environments.

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About MERCOID

MERCOID, a brand with a history dating back to the early 20th century, is recognized for its pressure and temperature controls, transmitters, and switches used in industrial process applications. The brand is particularly known for its mercury-switch-based controls, though modern product lines have expanded to include electronic and explosion-proof designs. 3G Electric supplies a range of MERCOID products, including pressure switches, differential pressure transmitters, and mounting accessories, catering to applications in hazardous locations and general industrial environments.

The core product families available through 3G Electric include the SA1100 Series hazardous-location machine tool pressure switches, which cover set-point ranges from 20 psi to 500 psi with 1/4" FNPT connections, suitable for use in classified areas. The 3200G Series explosion-proof pressure transmitters offer outputs of 4 to 20 mA DC with HART communication, accuracy of ±0.075% of full scale, and IP66/NEMA 4X enclosures, available in ranges from -14.5 psi to 10,000 psi. These transmitters feature conduit connections and optional LCD displays. Additionally, MERCOID provides mounting brackets such as the A-630 angle bracket and A-631 flat bracket, designed for use with differential pressure transmitters and smart pressure transmitters, respectively.

From a technical-buyer perspective, MERCOID products are built to standards that include NEMA 4X and IP66 ratings for environmental protection, and they are designed for use in hazardous locations with explosion-proof and intrinsically safe options. The pressure switches and transmitters are constructed with materials suitable for industrial environments, and the accessories are engineered for secure installation. 3G Electric supports the MERCOID line by stocking these products and offering global logistics, enabling procurement specialists and plant engineers to source these components for projects involving burner management, pump control, gas handling, and other process control systems.

Common Applications

  • Oil and gas refining — MERCOID 3200G Series explosion-proof pressure transmitters for monitoring pipeline pressures in hazardous areas.
  • Chemical processing — MERCOID SA1100 Series pressure switches for machine tool control in classified environments.
  • Water treatment — MERCOID A-631 flat brackets for mounting differential pressure transmitters on filter systems.
  • Power generation — MERCOID 3200G Series transmitters with HART communication for boiler pressure monitoring.
  • Pharmaceutical manufacturing — MERCOID A-630 angle brackets for installing smart pressure transmitters in clean rooms.
  • HVAC systems — MERCOID SA1100 Series pressure switches for fan and pump control in industrial buildings.

Frequently asked questions

Common questions about MERCOID from 3G Electric.

What are the key specifications of the MERCOID 3200G Series pressure transmitters?

The MERCOID 3200G Series pressure transmitters available from 3G Electric feature 4 to 20 mA DC output with HART communication, accuracy of ±0.075% of full scale, and IP66/NEMA 4X enclosures. They have NPT process connections and are available in pressure ranges from -14.5 psi to 10,000 psi. Some models include an LCD display and are rated for explosion-proof applications with conduit connections.

What is the difference between the MERCOID A-630 and A-631 brackets?

The MERCOID A-630 is an angle-type bracket designed for use with smart pressure transmitters, while the A-631 is a flat-type bracket intended for differential pressure transmitters. Both brackets include bolts for installation and are made to facilitate secure mounting in industrial settings. They are accessory items that support the installation of MERCOID transmitters.

What pressure ranges are available for the MERCOID SA1100 Series pressure switches?

The MERCOID SA1100 Series hazardous-location machine tool pressure switches stocked by 3G Electric cover set-point ranges from 20 psi to 500 psi. Specific models include the SA1112E-S5-K2 (20–250 psi) and SA1113E-S5-K2 (30–500 psi), all with 1/4" FNPT pressure connection ports. These switches are designed for use in hazardous locations.

Are MERCOID pressure transmitters suitable for use in hazardous locations?

Yes, certain MERCOID pressure transmitters, such as the 3200G Series, are designed for explosion-proof applications. They feature conduit connections and are rated IP66/NEMA 4X, making them suitable for use in hazardous environments. However, not all models are intrinsically safe; check specific model specifications for certifications.

What accessories are available for MERCOID pressure transmitters from 3G Electric?

3G Electric supplies MERCOID mounting brackets, including the A-630 angle bracket and A-631 flat bracket, both of which come with bolts. These accessories are designed for use with differential pressure transmitters and smart pressure transmitters, respectively, to facilitate installation in industrial process systems.

Does 3G Electric supply MERCOID products?

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