Surface condensers · Power plants · Turbine exhaust

From the waterbox doors to the anchor bolts: we make the bolting.

Waterbox cover and flange studs, hinge pins, circulating water nozzle bolting, expansion joint clamp-bar studs, manway and davit hardware and anchor bolts, made in Houston to your drawings and specifications.

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    Innovation Fasteners · surface condensers

    A steam surface condenser, taken apart to show what we make

    A two-pass steam surface condenser of about 20,000 sq ft, the kind that sits under a turbine exhaust: a 10 ft square shell holding 3,824 one-inch tubes 20 ft long. It comes apart the way a fitter does it: the cooling water pipes unbolt from their 36-inch nozzles, the waterbox covers are unbolted and swung open on their hinges, the waterboxes pull back off the tubesheets, the manway covers swing out on their davits and the turbine hood lifts off the rubber expansion joint. The bolting we make is in colour. Press Solid view for a steel model, or Cutaway to see the tube bundle, support plates, hotwell and waterbox inside.

    In colour · parts Innovation Fasteners makes

    What's highlighted, and where it goes

    Waterboxes

    Waterbox cover studs & nuts

    Clamp the hinged flat cover (door) onto the front flange of each waterbox, sixty-four round each door. They all come out whenever the doors open to clean or plug tubes.

    Waterbox flange studs & staked studs

    Join each waterbox to the tubesheet and shell flange. Every fourth one is drawn as a staked stud: screwed into the tubesheet with double nuts on the shell side, so the waterbox can come off without breaking the tubesheet seal.

    Waterbox door hinge pins

    Machined pins through the hinge plates and the door arms, two per door, carrying the cover as it swings open.

    Circulating water nozzle studs & nuts

    Bolt the cooling water pipes to the inlet and outlet nozzles: thirty-two 1-1/2 in. studs per flange on a 42-3/4 in. bolt circle (ASME B16.47 Series A Class 150, NPS 36), each with two heavy hex nuts.

    Shell & exhaust neck

    Expansion joint clamp-bar studs & nuts

    Clamp the rubber dogbone belt between the turbine exhaust hood and the condenser neck, one row above and one below.

    Shell manway studs & nuts

    Hold the two 24-inch manway covers on the shell side wall: twenty 1-1/4 in. studs each on a 29-1/2 in. bolt circle (ASME B16.5 Class 150). Off at every outage for inspection inside.

    Davit hanger bolts & pins

    The threaded hanger that carries each manway cover from its davit, and the pin that keeps the davit post in its brackets.

    Hotwell & air-removal flange bolting

    The condensate outlet off the hotwell and the air-removal connection to the vacuum equipment: eight 3/4 in. studs per flange (ASME B16.5 Class 150).

    Supports

    Anchor bolts & nuts

    Four per support foot, cast into the foundation piers. The feet at the return end sit on slide plates and have slotted holes, so the shell can grow as it heats.

    Waterbox, nozzle, manway and expansion joint bolting for your condenser, to your drawing. Send us your drawings and material spec.

    Request a quote832-446-3442

    A generic 20,000 sq ft two-pass condenser, not any maker's design. The circulating water, manway and small nozzle flanges and their studs follow ASME B16.47 and B16.5; the shell, waterboxes, covers, hinges, expansion joint, davits and supports are illustrative, and their bolt sizes and counts are typical. Your drawings govern. We manufacture to your drawings and specifications.

    A condenser of the kind covered by the HEI Standards for Steam Surface Condensers, drawn with ASME B16.47 Series A Class 150 flanges on the circulating water nozzles and ASME B16.5 Class 150 flanges on the manways and small nozzles.

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