Working Principle:
The stem nut installed on the gate drives the gate to rise and fall by stem ratation while the stem itself does not rise or fall
Specifiction:
Bolt Bonnet;Wax-Sealed Bolt;Matel Seal(Brass/Bronze/Stainless Steel);Brass Stem Nut; Available Extant Stem;Handwheel Or Nut Or Gear Operator
Technical Paramater:
Normal Size: 40A~500A
Pressure Rate: JIS 5K/10K
Working Temperature: 0℃~80℃
Working Medium: Water
Design: AWWA C509,AWWA C515, MSS SP-70;
Manufacture: Factory STD;
Face To Face: ANSI B16.10
Flange: ANSI B16.1, JIS B2212;
Installation Instructions:
1\The valve’s rated parameters should match the equipment’s. Make sure that the valve’s rated flow satisfied the actual demand;
2\ The installer must the trained or experienced so as to operate the installation correctly;
3\ A thorough check after installation is needed to ensure no errors;
4\ A thorough cleaning before installation is needed(chemical reagent can be applied if it is necessary) to ensure the there is not any rusting or dirt in the pipe. All the filters must be removed before washing to keep the pipe smoothly open;
5\ When beginning to wash the system, it is suggested to install the valve on a temporary pipe. After finish system cleaning, move the valve back and install it on the system’s pipe;
6\ This products should not be used when the fluid medium has high viscosity(contains much grease or mineral oil), or under corrosive circumstances;
7\ Use flange and the corresponding bolts that meet the standard to connect the valve.
