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Endress+Hauser COY31-Z (51506784) service kit for Oxymax COS31 & COS41 dissolved oxygen sensors. Includes membrane caps, KCl electrolyte, sealing rings & polishing strips.
Product Overview
The Endress+Hauser COY31-Z (Article No. 51506784) is the standard maintenance/spare parts kit for Oxymax W COS31 (3-electrode) and COS41 (2-electrode) amperometric dissolved oxygen sensors. It contains all consumables required for periodic membrane replacement and electrolyte refill — including COY31-WP membrane caps, COY3-F potassium chloride (KCl) electrolyte solution, Viton O-ring seals (COY31-OR), and cathode polishing strips (COY3-PF) — ensuring continued measurement accuracy in wastewater aeration and water quality monitoring.
Wastewater Aeration Basins: Routine servicing of DO probes in activated sludge process control.
Environmental Monitoring: Maintenance of sensors deployed in rivers, lakes, or coastal waters.
Aquaculture: Keeping DO probes in fish tanks and raceways within spec.
Industrial Effluent: Scheduled preventive maintenance in discharge monitoring stations.
Note: Membrane cap COY31-WP is also available separately (Order No. typically 51506684). Always verify sensor model (COS31/COS41) and response type before ordering.
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Agent,Importer,Trading Company
Year Established:
2012
Total Annual:
2000000-3000000
Employee Number:
>50
Ecer Certification：
Verified Supplier
A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E... A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E...
