Item # 180-1/4, 1/4" Y Blow-Off Valve On Lunkenheimer/Cincinnati Valve Co.

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	Item # 180-1/4, 1/4" Y Blow-Off Valve

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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Specifications · Principal Parts and Materials

Specifications

Size		1/4 in

Dim. A		5 3/18 in

Dim. E		7 1/11 in

Dim. G		4 2/3 in

Dim. M		4 1/2 in

Dim. H		14 in

Weight		5.0 lb

Body Material		Bronze with Metal Seat

Principal Parts and Materials

Part	Fig	Material	ASTM
Body & Bonnet		S-1 Steam Bronze	B61
Disc	180	NT Nickel Alloy

	180-T	Teflon
Stem		Stemalloy, Rod	B371

		(C6970)
Seat Ring	180	NT Nickel Alloy

	180-T	Integral/Bronze
Packing		JC168 Kevlar

Bronze Valves comply with ANSI B1624 arc MSS-S5P-80

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Item # 180-1/4, 1/4" Y Blow-Off Valve

Size

Dim. A

Dim. E

Dim. G

Dim. M

Dim. H

Weight

Body Material