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HOW IT WORKS: ZP-900 HYDRAULIC contains a wet anti-wear lubricant and dry dielectric lubricant, pour point depressant, viscosity index improver, foam reducer, oxidation inhibitor and seal revitalizer. This formulation will not reduce fluid lubricating ability as silicone defoamants often do. It reduces the most frequent problems with hydraulic systems: wear, heat, oxidation, cavitation and leaks. Pump, cylinder and valve wear are virtually eliminated by the surface and subsurface lubrication. By forming a barrier between metal to metal contact, it reduces friction, increasing the load carrying capacity of the system and reducing pump strain. This also reduces friction heat buildup, resulting in less oxidation, varnish, sludge and acids. Valves are freed, and the hydraulic oil lasts longer. WHAT TO EXPECT: Foaming develops as pumps pull in air and mix it with oil. Air may enter due to faulty seals, low fluid level, or even during normal operation. Excess noise in the pump indicates cavitation, which is the formation and collapse of vapor bubbles in the oil. When bubbles collapse, the effect is that of miniature hammer blows, which work to destroy the pump. ZP-900 guards against disastrous pump cavitation with a defoamant and against the power losses that occur when bubbles are in the hydraulic system. ZP-900 reduces the heat load and adds a viscosity index improver to keep oil from thinning out. At 120°F or below, oil oxidizes very slowly. Above 135°F, the rate of oxidation doubles for each 18° increase in temperature. Oxidation leads to sludging, causes formation of harmful acids and creates more heat. Seals deteriorate, and thin, hot fluid leaks out. Hoses fail from being exposed to excess heat, resulting in more fluid loss and downtime. ZP-900 will keep seals pliable, reduce heat and with our defoamant and viscosity improver, keep pumps from cavitating. APPLICATIONS: ZP-900 is compatible with all standard hydraulic systems. 12 oz bottle.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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