D hole size where required should be the same as the flange bolt hole.
Blind bolt spec.
After installation a neat low profile head is left with no stud.
Maxibolts are primarily used in structures where higher loads are required.
Oversize repair parts huck part numbers and procurement specifications.
Because the blind flange s sole purpose is to contain the pressure of the pipe it and its bolts are stressed more.
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.
Blind flange datasheets and dimensional information.
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.
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.
It is different than a valve in that the blind is a permanent or long term isolation device.
The original 3 part design for general hollow section connections and the larger sized 5 part high clamping force hcf.
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.
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.
Special configurations huck part numbers and procurement specifications.
When used at the end of a pipe vessel or tank it provides an easy open access for further extension of the pipe.
Grip with blue anodize on sleeve.
The thin wall bolt has a strong shear capacity.
A blind flange bf is a piping component for covering or closing the end of a pipe valve vessel or tank.
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.
The cherry maxibolt blind bolt system is available in alloy steel and a 286 cres materials.
In practice these dimensions have been rounded round off upwards.
Wt thickness of the web or tie bar should be 6 mm minimum or equal to thickness t if less than 6 mm.
No reduction in diameter to allow for the slot is required.
W 5 32 nominal diameter cherry maxibolt blind bolt 219 min.
