NIBCO F-910-B Size 6" Cast Iron Class 125 Silent Check Valve

Description

New in box – I purchased 5 of these at a misplaced freight auction, and 1 of them was out of the box, so I used it to take the photos.
I honestly do not know what these are used for, so please do your research before ordering. Due to the heavy weight, and the high cost of shipping this item, I cannot offer free returns, and I will have to deduct shipping costs from any return refund
The shipping cost that you see is actual and calculated based on your location.
The product details below are copied from an online seller of this item. It may contain errors which I am not responsible for. Please research the application your self before buying
Product Details
Conforms to MIL-V-18436F
Renewable seat and disc
Spring actuated (1/2 psi cracking pressure)
Valve pressure rating 200 psi/13.8 bar non-shock cold working pressure
Maximum temperature 200°F/ 93°C
Horizontal or vertical installation
Check valves prevent backflow by automatically closing when fluid reverses direction. Wafer checks may be installed in horizontal positions (or vertical with flow moving up). Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO check valves for the most specified, versatile and economical valve option in commercial, mechanical and industrial applications.
I ship Fast!
I am not responsible for returned items due to wrong address or the inability to forward.
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I try to ship as quickly as the next day following your purchase except on weekends.
Please allow at least ONE full business day for the shipment tracking information to update with location and scheduled delivery date.
Items purchased on Friday thru Sunday will Ship on the following Monday as long as it is not a Holiday. USPS Items may possibly ship on Saturday
If you have a question about shipping times or rates, please contact me before you buy
SHIPPING:
I reserve the right to choose the shipping service (FedEx or USPS) based on your location, quantity, and the cost of shipping. If the item has shipping added, it is a calculated rate based on your location. Please contact me before you buy with any shipping questions.
I ship all of my orders by the next business day or sometimes the same day depending on what time the order was placed.
Tracking and delivery dates on eBay are estimated. Please go to either the USPS or FedEx website to track your order and to get the target delivery date. Delays are possible and are totally out of my control.
RETURNS: PLEASE READ!
(I don’t want to sound mean or harsh, but I want the policies to be clear)
PLEASE CONTACT ME THROUGH EBAY MESSAGING BEFORE OPENING A RETURN. WE MAY BE ABLE TO WORK SOMETHING OUT.
We do allow returns on most all of our items within 30 days of receipt of the item. Anything that is returned and is not in the same condition as it was when you received it will be subject to a restocking fee or the return may be denied.
Please research the item that you are interested in before buying
If you received an item that was damaged during shipping. I will need photos of the packaging and the item so that I can file a damage claim and have the item picked up. Please do not dispose of the shipping box until you are sure that you will not be returning it.