430x330 mm(17x13in) Sanitary Stainless Steel Rectangular Manhole Cover The sanitary manhole is a negative pressure manhole.It is made of S304 and can meet the special requirements of various media in the field of food and bio-pharmaceutics.It can be used in dairy, beer, food, beverage, pharmaceutical, bioengineering and other industrial fields, especially in Food, beer, dairy, chemical containers and other industries. The manhole is located in the lower part of the tank, and the manhole is subjected to a large liquid pressure. In order to prevent leakage, the installation quality of the manhole must be strictly required. The installation and maintenance of manhole The manhole is installed on the side wall or bottom of the tank or equipment to check the internal material work at any time. It is widely used in container equipment,moving tanks and fixed tanks, such manholes are respectively installed with stainless steel large tanks and tops, sides or bottoms of containers. And applications require access to large tanks and the inside of the container can be locked. Good sealing performance and other advantages. Four Characteristics Casting Assured Choice Selection of High-quality Brass High Temperature Ted Punch Forging One Piece of Raw Material High-precision Machining Manhole Size: 430mmx330mm(17x13inch) Gross Weight: 12kg(27lb) Working temperature: below 100℃ Pressure: within 3kg(6.7lb) Application: Mainly Used For Tanks In The Fields Of Food, Beverage, Chemical, Etc Sealed water lines are processed on the flanges and cover plates, and care should be taken during construction to avoid oil leakage during use. Every time you remove the manhole. Marked to avoid misalignment when reloading, affecting rigor. When installing the manhole cover nut, evenly apply a pair of diagonals to prevent deformation of the cover or oil leakage caused by uneven force. Items included:1 set of Rectangular Manhole Cover 430x330mm(17x13inch) (020069)