Chemically Resistant Connectors for Extreme Environments

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Sulfuric acid corrosion in many materials is dependent upon the acid concentration. Many materials that will not corrode when in contact with 98% concentrations of sulfuric acid may suffer significant corrosion at lower concentrations. Stainless steels are one of the material groups that can withstand very high concentrations of sulfuric acid (93% - 98% concentrations) but suffer significant corrosion at lower concentrations.

pictured above - stainless steel sensor body showing the effects of sulfuric acid corrosion

pictured above - remnants of a CTC A2A connector where the polycarbonate has completely disintegrated and the stainless locking ring has been seriously eroded due to the sulfuric acid

For situations requiring exposure to lower concentrations of sulfuric acid, CTC has developed PPS connectors with no exposed metal.

PPS connectors, like CTC's A2S and A3S, have an insert, backshell body, and locking ring all made from polyphenylene sulfide.

pictured above - A2S Connector - MIL-style, 2 socket connector, PPS material, no exposed metal, 392°F

pictured above - A3S Connector - MIL-style, 3 socket connector, PPS material, no exposed metal, 392°F

What are the Benefits of Polyphenylene Sulfide?
Polyphenylene sulfide is a high-performance thermoplastic material that exhibits extreme solvent resistance up to 200°C (392°F). The actual service temperature of PPS is up to 218°C (424°F). The inner sealing O-ring of the connector is made of Viton®, another acid-resistant polymer that displays excellent flexibility at higher temperatures.

PPS was selected for this application because it offers the broadest resistance to chemicals of any available advanced engineering plastic, including bases and acids, and also offers inertness to steam and hydrocarbon-based solvents. 

A very low coefficient of linear thermal expansion makes PPS products ideally suited for the machine components required for CTC connectors. In addition, PPS products exhibit excellent electrical characteristics that are inherently flame retardant, which makes them ideal for use in harsh industrial environments.

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CTC is the world leader in the design and manufacture of industrial accelerometers and piezo velocity transducers, 4-20 mA vibration sensors, and proximity probe sets, as well as all related mounting hardware, cables and connectors, and junction boxes. Our products enable efficient vibration monitoring for predictive maintenance in a wide variety of industries. Industries served include cement, mining, petrochemical, food & beverage, auto, steel, wind, paper & pulp, power generation, water & wastewater treatment, pharmaceutical, hospitals, bottling, and more. Our mission is to offer the widest variety of accelerometers and vibration hardware products, which are compatible with data collectors and online monitoring systems, as well as the tools for installation.

The CTC product line features vibration analysis hardware for heavy industry. All CTC products are backed by our unconditional, lifetime warranty. If any CTC product should ever fail, we will repair or replace it at no charge.

CTC’s PRO Line offers the world’s most durable and reliable Proximity Probe Sets including drivers, probes, extension cables, and driver enclosures for 24/7 protection of critical machinery in the most demanding industrial environments. CTC PRO Line Proximity Probe Sets are compatible with all major data collectors. PRO Line products are covered by our best-in-class lifetime warranty on material and workmanship.


The TMP line features vibration analysis hardware for research and development. All TMP products are backed by a five-year warranty on materials & workmanship for standard sensors and a two-year warranty for all accessories, cables, connectors, and custom & private-labeled products.

CANCELLATION POLICY:
Stock, built-to-order, and private-label products qualify for free cancellation only if cancelled within 24 hours of order entry. 

After 24 hours of order entry:

• Stock products will be subject to a 25% cancellation fee
• Built-to-order and private-label products will be subject to a 50% cancellation fee

Custom products are non-cancellable at any time after the order is placed.

If you wish to cancel an order, please reach out to your CTC sales representative. The timestamp of when your email requesting cancellation was received will be honored for whether or not your request meets the free cancellation window.

RETURN POLICY:
All stock products may be returned for a 25% restocking fee if returned in new and unused condition within 90 days of shipment.

Built-to-order and private-label products qualify for a 50% refund if returned in new and unused condition within 90 days of shipment.

Custom products are quoted and built specifically to the requirements of the customer, which may include completely custom product designs or private-labeled versions of standard products for OEM customers. Custom products ordered are non-cancellable, non-returnable, and non-refundable.

EXPEDITED PRODUCTS CANCELLATION & RETURN POLICY:
All expedited CTC orders are non-cancellable and non-returnable.