In practice these dimensions have been rounded round off upwards.
Blind bolt spec.
Maxibolts are primarily used in structures where higher loads are required.
The original 3 part design for general hollow section connections and the larger sized 5 part high clamping force hcf.
The huck blind bolt system is a service proven high strength blind fastening system which combines important features of structural durability and fabrication convenience with good economics.
After installation a neat low profile head is left with no stud.
Grip with blue anodize on sleeve.
Oversize repair parts huck part numbers and procurement specifications.
A spectacle blind or spec blind abbreviated as sb is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service.
D hole size where required should be the same as the flange bolt hole.
It is different than a valve in that the blind is a permanent or long term isolation device.
When used at the end of a pipe vessel or tank it provides an easy open access for further extension of the pipe.
As the bolt head is tightened the cone is pulled up the bolt thread causing the legs of the sleeve to expand until the cone locks the sleeve against the inner wall of the hollow section available in two versions.
Blind flange dimensions class 150 to class 2500 outer diameter of body bolt circle bolt hole diameter straightness and alignment of the bolt hole thickness of the blind.
In bearing the resistance of a blind bolt should satisfy the requirements of aisc specification 360 10 clause j3 10 expressions j3 6a or j3 6b as required using the nominal diameter d of the bolt.
Hollo bolt an expansion bolt for structural hollow sections shs hss with blind connections when you only have access to one side of the connection.
No reduction in diameter to allow for the slot is required.
Wt thickness of the web or tie bar should be 6 mm minimum or equal to thickness t if less than 6 mm.
W 5 32 nominal diameter cherry maxibolt blind bolt 219 min.
Because the blind flange s sole purpose is to contain the pressure of the pipe it and its bolts are stressed more.
In combined tension and shear blind bolts should satisfy the following expressions.
The tw or thin wall bolt was developed to address the need for a blind fixing to be used into lightweight steel sheet or cladding material.
Blind flange datasheets and dimensional information.
A blind flange bf is a piping component for covering or closing the end of a pipe valve vessel or tank.
It conforms to ms90353 ms90354 and ms21140 ms21141 meets the requirements of mil f 81177 and mil f 8975 and is listed in qpl81177 and qpl8975.
