108" Dia. Storage Tank and Containment Tank Designed for a Chemical Plant in Texas

January 11, 2015

108

Sweco Fab., a division of PT&P, designed and fabricated this 108″ diameter storage tank that will be submerged inside a containment tank for a chemical plant in Texas. The storage tank is fabricated from 1/2″ thick SA516-70 carbon steel and is 240″ in length. The containment water tank measures 295″ L x 124″ W x 128″ H. The storage tank is designed for 100 PSIG at 130°F internally and 15 PSIG at 130°F externally. The storage tank was hydro tested for 1 hour at 150 PSI and a full radiography test was done prior to shipment.

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Pig Launchers and Receivers Designed for a Crude Export Pipeline

February 21, 2014

Pig Launchers and Receivers Designed for a Crude Export Pipeline

Sweco Fab., Inc. designed and fabricated pig launchers and receivers with closure for a crude export pipeline in Mexico. These units were custom designed per ASME CODE B31.3 and weigh 2,400 lb. They are 120″ in length and have 12″ dia. minor barrels and 18″ dia. major barrels. The barrels are fabricated from API 5L Gr. B pipe, the flanges from SA105 and the closures from carbon steel. The launchers are designed for operating temperatures that vary from -20°F to 212°F at 943 psig. They were radiography tested and hydro-tested at 1,415 psig for two hours.

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42" Dia. Stainless Steel Storage Tank

July 21, 2013

42" Dia. Stainless Steel Storage Tank
Sweco Fab. designed and fabricated storage tanks from 1/4″ thick ASTM A240 grade 304 stainless steel. The tanks are 42″ in diameter, 72″ in overall length and 39-7/8″ in height. The legs are fabricated from SA36 carbon steel. They are designed for 1 PSIG and ambient temperatures. The storage tanks were hydro tested and leak tested for 8 hours prior to shipment.

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48" Dia. High Pressure Knock-out Drum Vessel

June 29, 2013

48" Dia. High Pressure Knock-out Drum Vessel

48" Dia. High Pressure Knock-out Drum Vessel

Sweco Fab, designed and fabricated a high pressure knock-out drum for a refining company in El Paso, Texas. The pressure vessel was designed according to ASME Section VIII Div. 1 codes with an overall height of 351″ and inside drum diameter of 48″. Its main application is to separate the vapor and liquid in the refining process. It contains a fire proofing skirt and a stainless steel demister pad that aids the separation process. The shell is fabricated from 3/8″ thick SA516 Grade 70 carbon steel, and the forge fittings are fabricated from SA105 carbon steel. The knock out drum has an operation temperature of 450°F at 125 psig, and underwent radiography, dye penetrant and hydro-tests before it was shipped.

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84" Water Treatment Vessel Designed for a Refinery in Texas

June 18, 2012

84" Water Treatment Vessel Designed for a Refinery in Texas

Sweco Fab., a division of PT&P, fabricated a water treatment vessel from 3/8″ thick SA516 Grade 70 carbon steel for a refining facility in Texas. This pressure vessel has an 84″ outside diameter, is 11′ tangent to tangent and has an overall height of 14′-8″. It is designed for maximum working pressure of 100 psig at 100°F. A radiography test and hydrotest at 130 psig, held for 1 hour was conducted prior to shipment.

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48" Diameter Stainless Steel Glycol Makeup Tank Fabricated By Our Sweco Fab Division.

December 5, 2011

48" Diameter Stainless Steel Glycol Makeup Tank

This Glycol Makeup Tank is fabricated entirely from ASTM A240-304 stainless steel and is rated for 0 psig at 150°F. The tank has a 1,000 gallon capacity and measures 48″ I.D. x 10′-8″ seam-to-seam. The stand pictured behind is also fabricated from stainless steel and measures 11′ high. The customer ordered six additional units and all the Makeup Tanks underwent leak testing prior to shipment.

48" Diameter Stainless Steel Glycol Makeup Tank

Do you require a tank or vessel for an upcoming project? Let us price it for you today!

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Pig Launcher and Receiver with a Flag Indicator

May 16, 2011

Pig Launcher and Receiver with a Flag Indicator

PT&P’s Sweco Fab division designed and manufactured a pig launcher and receiver with a flag type  indicator and a flanged HI-T Pig Alert pig signaler. They are fabricated from carbon steel with a three coat paint system. The pig launcher has an 8” diameter minor barrel, a 10” diameter major barrel, and is 110” in overall length. The pig receiver has a 10” major barrel, a GD II Closure and is 170” in overall length. They are designed for 430 psig at 100°F and were hydro-tested at 645 psig , held for four hours. Both pig launcher and receiver went through a 100% radiography test prior to shipment.

Want to learn more about pig launchers? Instantly view a recording of a past Sweco webinar.

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ASME Code Pig Launchers and Receivers with a Safety Locking System

January 3, 2011
ASME Code Pig Launchers and Receivers with a Safety Locking System
ASME Code Pig Launchers and Receivers

The pig launchers and receivers were designed for a coal-bed methane gas production facility in Colorado. They are equipped with an integral safety locking system which works on the principle of mechanical key interlocking (transfer of keys). This system avoids serious injuries from human error and insures safety of personnel.

ASME Code Pig Launchers and Receivers with a Safety Locking System
Safety Locking System

One starter key per launcher/receiver is kept in a box located in the control room. Each lock is executed with two keys. When the first valve is opened with this starter key, it releases the second key. This key is transferred to next valve which releases second key from that valve and so on and so forth. This process guides the operator through the specified sequence for opening and closing valves with unique a key for each step.

Do you see a need for pig launchers in your piping system? Request pricing today!

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