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SPAN

SPAN is a manufacturer of industrial pressure gauges, with a product line centered on dial-type instruments designed for demanding process environments. The brand is known for its LFS-210 series of pressure gauges with internal seals, which address common failure modes in gauge operation: clogging of the pressure-sensing element and freezing of the fill fluid in low-temperature conditions. These gauges integrate a freeze- and clog-resistant internal seal directly into the gauge assembly, eliminating the need for a separate diaphragm seal or chemical seal installation. The LFS-210 series is available in a range of pressure spans from 0–100 psi up to 0–7,500 psi, as well as compound ranges covering vacuum to positive pressure (e.g., 30 inHg to 150 psi, 300 psi, 600 psi). All models in this series feature a 2 1/2-inch dial diameter, a glycerin-filled case for vibration dampening and lens fogging prevention, and a Buna-N seal with brass/copper wetted parts. The internal seal is filled with instrument oil, providing a stable barrier between the process fluid and the gauge movement. Accuracy is rated at ±1.00% of full scale, suitable for general industrial monitoring and control applications where repeatability and reliability are required. SPAN gauges are typically used in hydraulic systems, pump discharge lines, compressor packages, and other fluid-power or process-piping installations where the media may contain particulates, viscous fluids, or temperature extremes that could compromise standard Bourdon-tube gauges. 3G Electric stocks multiple SKUs of the SPAN LFS-210 series, covering the most common pressure ranges and compound configurations. Each unit is supplied with a 1/4-inch NPT connection and a 4-inch center-back mount for panel or stem installation. The glycerin case fill and instrument-oil seal fill are factory-sealed and not field-replaceable, ensuring consistent performance over the gauge's service life. For procurement specialists and maintenance engineers, the SPAN LFS-210 series offers a drop-in replacement for applications that previously required a separate diaphragm seal assembly, reducing installation complexity and potential leak points. 3G Electric provides logistics support for these gauges, including consolidated shipping and inventory management for multi-SKU orders.

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Tentang SPAN

SPAN is a manufacturer of industrial pressure gauges, with a product line centered on dial-type instruments designed for demanding process environments. The brand is known for its LFS-210 series of pressure gauges with internal seals, which address common failure modes in gauge operation: clogging of the pressure-sensing element and freezing of the fill fluid in low-temperature conditions. These gauges integrate a freeze- and clog-resistant internal seal directly into the gauge assembly, eliminating the need for a separate diaphragm seal or chemical seal installation. The LFS-210 series is available in a range of pressure spans from 0–100 psi up to 0–7,500 psi, as well as compound ranges covering vacuum to positive pressure (e.g., 30 inHg to 150 psi, 300 psi, 600 psi). All models in this series feature a 2 1/2-inch dial diameter, a glycerin-filled case for vibration dampening and lens fogging prevention, and a Buna-N seal with brass/copper wetted parts. The internal seal is filled with instrument oil, providing a stable barrier between the process fluid and the gauge movement. Accuracy is rated at ±1.00% of full scale, suitable for general industrial monitoring and control applications where repeatability and reliability are required. SPAN gauges are typically used in hydraulic systems, pump discharge lines, compressor packages, and other fluid-power or process-piping installations where the media may contain particulates, viscous fluids, or temperature extremes that could compromise standard Bourdon-tube gauges. 3G Electric stocks multiple SKUs of the SPAN LFS-210 series, covering the most common pressure ranges and compound configurations. Each unit is supplied with a 1/4-inch NPT connection and a 4-inch center-back mount for panel or stem installation. The glycerin case fill and instrument-oil seal fill are factory-sealed and not field-replaceable, ensuring consistent performance over the gauge's service life. For procurement specialists and maintenance engineers, the SPAN LFS-210 series offers a drop-in replacement for applications that previously required a separate diaphragm seal assembly, reducing installation complexity and potential leak points. 3G Electric provides logistics support for these gauges, including consolidated shipping and inventory management for multi-SKU orders.

Aplikasi Umum

  • Hydraulic power units — SPAN LFS-210 pressure gauge for monitoring pump discharge pressure up to 7,500 psi
  • Compressed air systems — SPAN LFS-210 compound gauge for measuring vacuum and positive pressure in compressor packages
  • Water treatment plants — SPAN LFS-210 gauge with internal seal for sludge or slurry lines where clogging is a concern
  • Industrial boiler feedwater — SPAN LFS-210 gauge for monitoring feed pump pressure with freeze-resistant internal seal
  • Chemical injection skids — SPAN LFS-210 gauge with brass/copper wetted parts for non-corrosive chemical dosing lines
  • Hydraulic press maintenance — SPAN LFS-210 gauge for verifying system pressure in high-cycle hydraulic presses

Pertanyaan yang Sering Diajukan

Pertanyaan umum tentang SPAN dari 3G Electric.

What is the primary advantage of the SPAN LFS-210 internal seal design over a standard Bourdon-tube gauge?

The SPAN LFS-210 internal seal isolates the gauge movement from the process fluid using a flexible diaphragm and a fill of instrument oil. This prevents clogging of the Bourdon tube by particulates or viscous media and reduces the risk of freezing in low-temperature environments. Unlike a separate diaphragm seal assembly, the internal seal is integrated into the gauge body, saving space and eliminating an additional threaded connection that could leak.

What pressure ranges are available for the SPAN LFS-210 series from 3G Electric?

3G Electric stocks SPAN LFS-210 gauges in pressure ranges from 0–100 psi up to 0–7,500 psi, as well as compound ranges covering 30 inHg vacuum to 150 psi, 300 psi, and 600 psi. All models have a 2 1/2-inch dial and a 1/4-inch NPT connection. The full list of available SKUs includes ranges of 100, 1,500, 2,000, 5,000, and 7,500 psi, plus the three compound ranges.

What materials are used for the wetted parts and seal in the SPAN LFS-210 gauge?

The wetted parts of the SPAN LFS-210 gauge are brass and copper. The internal seal diaphragm is made of Buna-N (nitrile rubber). The seal fill is instrument oil, and the gauge case is filled with glycerin for vibration dampening. These materials are compatible with many hydraulic oils, water-glycol mixtures, and other non-corrosive fluids. For aggressive chemical compatibility, consult the manufacturer's data.

What is the accuracy specification of the SPAN LFS-210 series?

The SPAN LFS-210 series is rated at ±1.00% of full-scale accuracy. This is typical for industrial-grade dial gauges used in monitoring and control applications where high precision is not required but repeatability and reliability are important. The accuracy is maintained across the full pressure range, including compound models.

Can the SPAN LFS-210 gauge be mounted in any orientation?

The SPAN LFS-210 gauge has a 1/4-inch NPT connection and a 4-inch center-back mount, which is designed for panel or stem mounting. The glycerin case fill and internal seal are factory-sealed, so the gauge can be installed in any orientation without affecting performance. However, for optimal readability and to avoid liquid-column effects, vertical mounting with the dial face upright is recommended.

Does 3G Electric supply SPAN products?

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