What is a Rubber Flap Check Valve?
The Rubber Flap Check Valve is a versatile and cost-effective solution. Its stroke is smaller than that of a traditional rotary check valve, which reduces impact and provides a strong and fast seal. The spring-assisted rubber insert check valve has all the functions of a standard valve and a built-in spring, which can assist in closing the disc in a system where rapid reverse flow may occur to improve the slam resistance. The valve has a 100% flow area, low head loss and resistance to blockage. The floppy disk has an integrated O-ring seat for drip-proof sealing under low pressure and high pressure. The combination of the valve's 45-degree seat angle, short stroke and the inherent memory of its flexible disc can provide quick closing and impact resistance.
Rubber Flap Check Valve Feature
250 PSI rated epoxy coated ductile iron body and bonnet
Tight seal under low pressure and high pressure
Floppy disk successfully passed a million cycles test
Stainless steel cover fastener standard
Can be used with backflow device and/or position indicator
Optional electric position switch
Rubber Flap Check Valve Material
•Valve body and cover: ductile iron, ASTM A536 grade 65-45-12
•Flexible disc: nitrile rubber, nylon and steel reinforced
• External fasteners: 304 stainless steel