Risers, Spools & Pipe-aways

1 2110 70 Ave NW, Edmonton, AB Canada T6P 1N6 phone: (780) 490-4295, fax: (780) 490-4290 REV C0 FEBRUARY (4295)Above:Vent riser , with 12:1 PitchBelow:12 150# ANSI to 8 API spool AdapterBelow:Pipe Away with 4 150# ANSI Flange pipe connectionVapor Control > AccessoriesRisers, Spools & Pipe-awaysHawkeye offers riser , spool and Pipe-away System adapters to complement our vapor controlproduct line. Hatch RisersAdapter SpoolsPipe-away System Hatch risers are used to mount Marsh Hawk TRV units to tankswith sloped roofs. The riser accommodates the slope angle ofthe roof, allowing the hatch to sit in an upright orientation, whilekeeping the internals of the vent within the heat envelope of thetank. The risers have 8 API mounting flanges on top and bot-tom, and a canted at the standard 12:1 roof Spools are used to mount a Marsh Hawk or TVTH to atank lacking the standard 8 API mounting pattern.

2 The spoolheight accommodates fastener installation, while keeping theMarshhawk internals within the heat envelope of the tank. Com-mon adapter Spools include 8 and 12 150# ANSI, as well as theAPI 18 and 22 oblong bolt patterns. Custom mounting pat-terns can be accomodated, call us for more Pipe-away system provides means to capture emissions froma tank while still maintaining the pressure- and vacuum -reliefcharacteristics of a Marsh Hawk TRV. The Pipe-away Systemsports a 4 150# ANSI flange connection to pipe vapors away, inaddition to a 8 API flange at the top that can accommodate aTVTH. The Pipe-away ships standard with a modified MarshHawk, blind 8 API flange, gaskets and tank mounting , Spools and pipe-away systems are welded carbon steel,and coated with high temperature flat-black , Spools & Pipe-aways2110 70 Ave NW, Edmonton, AB Canada T6P 1N6 phone: (780) 490-4295, fax: (780) (4295)Common spool Adapter Bolting PatternsPipe-Away ConfigurationAPI 8 X 22 Oblong Pattern API 12B, Figure 8 X 18 Oblong Pattern API 12B, Figure 150# ANSI ANSI API API 65020 API API 65024 API API 6508 API API 12B Figure *Standard Thief Hatch*8 150# ANSI ANSI InformationRISER1.

3 Specify the 12:1 Vent Riser2.) Specify Tank Connection (8 API Standard) spool ADAPTER1.) Specify spool Adapter2.) Specify Tank Bolt Pattern (see left for typical connections)PIPE-AWAY SYSTEM1.) Specify Pipe-away System2.) The following steps are the same as ordering a Marsh Hawka.) Specify Marsh Hawk TRV b.) Specify Pressure Release Setting (2 - 16 oz / in2) c.) Specify Seal Material3.) Specify Pipe-away connection (4 150# ANSI Standard)A.) Blind Flange or TVTHB.) Pipe-away bodyC.) Pipe-away connectionD.) Marsh Hawk TRVACDB