Features (DJF series angle check valves): 1) Installed on suction system, fuel lines on top of fuel storage tanks to maintain prime 2) Models are available with male threaded inlets for connection directly into tank bung fittings or with female inlets for connection to a nipple that is threaded into a tank bung fitting 3) Single-poppet models can be used in applications where the valve is easily accessible for maintenance and disc cleaning or replacement 4) Spring-loaded poppet and buna-N discs to assist in keeping the valve closed when installed in high-vibration areas 5) Recommended for use on suction lines where the pressure does not exceed 34 feet of head (approximately 15 psi) 6) 100% factory tested 7) Ordering specifications: a) Products: DXF801, DJF 802-804 b) Sizes: NPT11/2" (inlet) x NPT11/2" (outlet), NPT11/2" (inlet) x BSP11/2" (outlet), BSP11/2" (inlet) x NPT11/2" (outlet), BSP11/2" x BSP11/2" (outlet) Features (CGQ series pulser): 1) Ordering specifications: a) Products: CGQ260 b) Pulse: 60, 100 2) Good quality Outer packing: 20pcs/ctn Carton dimensions: 54 x 30 x 16.5cm N.W.: 16.5kg G.W.: 18kg Features (BWG series syphon): 1) Ordering specifications: a) Products: BWG-813, 816, 830 b) Lengths: 130mm, 160mm, 300mm 2) Good quality