The USAQUAPRO F64A1-AirKit Manual Backwash Air Pocket Oxidation Iron Filter Control Valve for Water Treatment with Air Injection Kit, Top Strainer, BSPP/FIP-1" threads, NPT Female threads (with adapters) features a flow rate of 17.6 GPM (4m³/h) and utilizes a ceramic sealing technology with corrosion resistant gasket for opening and closing functions. It can be used with tank sizes up to 1354, with catalytic media like Filter-Ox, Birm, Katalox-Lite, etc This valve is for use in water filters (carbon, sediment, multimedia, sand, or any other backwash media), for residential or commercial application. Media tank is usually a FRP tank, holding the media, and this valve will do backwash and rinse service for the media. Single tank control valve, no water pass when the valve is in washing. Has a Mounting base 2.5"-8NPSM, and Inlet/Outlet/Drain ports G1" Female threads or FIP1" threads with adapters if included. Control Valve has Service, Air-injection, Fast rinse, and Backwash modes, with manual operation. With a handle, you can switch the settings easily without turning off the pump or the power. When selecting a valve setting, make sure the handle arrow points to the desired mode directly (not in between two modes). NO electricity required. If you have started backwashing your filter, always make sure you backwashed enough time and intensity to get turbidity leave the tank. Usually it takes 6 -10 minutes to backwash. Use additional flow restriction valve or a washer on the drain line to limit drain flow for NOT to wash out the tank media. As the name suggests, the Manual filter Control Valve is operated by manually spinning the handle or hand wheel. Its handle can be turned 180 degrees and could be available in both plastic and metal. For tanks that range in size from 8" to 13", the installation technique is top-mounted. The primary applications for the Manual Filter Control Valve include carbon and sand filtration systems in homes, as well as iron and manganese removal filtration, and pre-filtration systems for reverse osmosis treatment. It is possible to use F64A1 Control Valve to built an Iron removal filter utilizing an "Air Pocket" or "Air Bubble" technology. In order to form an air pocket during filter regeneration, it is necessary to make minor improvements to the device's installation diagram and to the regeneration technology. The following changes to the installation diagram are required: 1. Install an Air Injection Kit on the brine line. That is, the brine "inlet" - is connected to the ambient air and freely passes air into the tank at the time of brain/rinse stage of regeneration. The mesh is needed to protect against insects. The change in the regeneration diagram includes an additional cycle of air injection into the tank, after fast rinse, it is necessary to leave Control Valve in the stage brain/slow-rinse for about 15 minutes. When the air bubbles starts to go off the drain, turn the Control Valve to Fast Rinse mode for 1 minure, then turn to Service mode. Included with this purchase: 1. Control Valve F64A1 and AirKit -1 Pc 2. Spare Parts Kit: - Base Seal Ring (72 x 5.3) - 1 Pc - Drain Hose Connector - 1Pc - Brine Tube Hose Connector - 1 Pc - Tube Bushing (T-type) - 1 Pc - Brine Line Flow Control (red) - 1 Pc - Drain Line Flow Control (5#) - 1 Pc - Washer 1" (30x23x3.5)mm - 2 Pcs 3. Top Strainer - 1 Pc (variative) 4. FPT (NPT) Adapter - 3 Pcs (variative) User Manual - 1 Pc Model: F64A1（61104）Technical Data: Handle material: Metal Mount type: Top mount Inlet/outlet: G1" F or NPT1" with adapters if included Drain: G1/2" Male and hose barb 1/2 Mounting base: 2.5"-8NPSM Riser pipe: 1.05"OD Flow rate: 4m³/h Filter tank: 6"--16" Water pressure: 0.15-0.6Mpa Water temperature: 5-50℃ Water turbidity: ＜20FTU Applications: - Softener filter, with Filter media: Ion Exchange resin; - Iron filter, with Filter media: Catalitic filter media for Iron filters, Air Pocket technology required to use.