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180 Bronze Y Blow-Off Valves

 
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Lunkenheimer Fig. 180 "Y" Blow-off valves conform to the ASME Boiler Code and are suitable for boiler service up to 80% of valve working steam pressure. Also provide approximate flow and drainage of a gate valve and may be used as such on other services. Also for throttling and fine regulation.

Bodies and Bonnets ASTM B61 Type S-1 Steam Bronze
Seat opening permits almost unrestricted flow. Cylindrical guides insure proper disc seating.

Union Bonnet
Assures strong, pressure-tight connections, facilitates cleaning and inspection.

Discs and Seat Rings
Regrindable, renewable. NT4 nickel alloy.

Back Seats
Repackable when disc is wide open under pressure.


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Item #

Item Name

Size

Dim. A

Dim. E

Dim. G

Dim. M

Dim. H

Weight
180-1 1" Y Blow-Off Valve 1 in 4 1/2 in 6 11/16 in 4 1/2 in 3 7/2 in 10 in 4.0 lb
180-1/4 1/4" Y Blow-Off Valve 1/4 in 5 3/18 in 7 1/11 in 4 2/3 in 4 1/2 in 14 in 5.0 lb
180-1/2 1/2" Y Blow-Off Valve 1/2 in 5 13/11 in 8 3/2 in 5 1/2 in 4 11/16 in 18 in 7.9 lb
180-2 2" Y Blow-Off Valve 2 in 7 in 9 3/6 in 5 1/2 in 5 1/2 in 22 in 13.5 lb
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