Quick Access Hinged Closures | T-Bolt Style Closures
The T-Bolt Closure is A Compact Closure Design For Tanks, Pressure Vessels, and Filters. Any Vessel or piping system requiring frequent and or quick access.
The simplicity of construction and operation are keynotes of the Tube Turns T-Bolt Hinged Closure. The closure consists of a thick semi-elliptical head that is hinged to a matching hub, a self-energized O-ring, and a suitable number of T-Bolts to effect and maintain a tight seal. For most services, the standard materials—carbon steel and a “Buna-N” 0-ring are satisfactory. Other metals and elastomers are furnished on special request. The T-Bolt Hinged Closure is opened quickly and easily.The operator merely loosens the T-Bolts until they clear the head lugs and allow the head to be swung open on its hinge. Complete, unrestricted access is provided, too, since the standard hinging permits a full 180°opening. Quick Opening Swing Bolt Hinged Closure provides a fast, economical, yet simple means of access to pressure vessels and lines that require frequent opening. high-pressure manway
Hinged Closure Materials:
Internal (Wetted) Materials:
Carbon Steel (ex. SA516-70), Stainless Steel (ex. SA240-304, 304L, 316, 316L), Duplex Stainless Steel (ex. SA240-S31803), Inconel (ex. SB168-N0660), etc.
External Materials:
wCarbon Steel, Stainless Steel, etc.
T-Bolt Break-Over Wrenches and Camlock Assemblies
The Break-Over Wrench Lug is welded to the T-Bolt (head bolt) and a handle is inserted over this lug. A pin is then inserted through the handle and the lug allowing the handle to act as a wrench and making the Break-Over Wrench an integral part of the T-Bolt Assembly.
In a Camlock Assembly,components replace the tapped swing nut (in the hub nut mount).The Camlock bolting unit consists of a high strength eye bolt that is pinned through an eccentric cam to provide the necessary clamping action.The caming action is adjustable by moving the adjustable nut at the threaded end of the eye bolt. This allows the camlock assembly to be loosened & tightened merely by lowering or raising the cam handle.
Vertical T-Bolt Closures
T-Bolt Closures with a spring loaded head for vertical applications are furnished in sizes 10”- 42”.The need for spring loading can be determined by reference to the table below. The tabulated “Force to Lift Head”is the force to lift the head without the springs. Manway covers for tanks
Hinged T-Bolt "Swing Bolt Closures" manway covers for tanks
Manway Closures, T Bolt Hinged, Swing Bolt, Hatch
ManWay Closures, T Bolt Hinged, Swing Bolt, Fast Opening Blind. Hinged manway or covers for tanks. High Pressure Manway
Full Size Range For Swing Bolt Closures
Standard Tube Turns T-Bolt Hinged Closures are furnished in carbon steel, stainless steel, & other alloys. Sizes range from 6” thru 66”.
“Buna-N”is the standard 0-ring gasket material. For services above 250F or where special corrosive conditions are to be encountered,0-rings of “Viton”,Silicone Rubber, “Neoprene’ Ethylene Propylene,“Teflon Encapsulated”(Viton or Silicone Core) can be furnished at an extra charge.
T-Bolt Closure Options
Break-Over Wrenches and Camlocks are optional attachments and accessories adding further to the versatility and utility of our T-Bolt Closures. Attachment of either of these options to the closure’s T-Bolts provides extra convenience, speed and ease in tightening the bolts. These attachments eliminate the need for separate wrenches. Quick Opening Swing Bolt Hinged Closure provides a fast, economical, yet simple means of access to pressure vessels and lines that require frequent opening.
Hinged Closures Come Fully Assembled
A complete unit normally costs less than the component parts for a blind or slip-on flange combination. There need be no additional expenses for hinges, hoists, davits, etc., as the closure can be fully assembled when shipped . high pressure manway
- Hinged Closures
- Swing Bolt
- Camlock Closures
- Access Hatches
- Manway and Handhole Assemblies
Swing Bolt Warning Features
The holding lugs are mounted on the closure head at an angle of approximately 10 degrees. This provides a valuable feature, for the angular mounting requires that the T-bolt be backed off an extra turn or two before it will swing out of the holding position. Thus, if there is pressure in the vessel while it is being opened, initial turns of the bolts permit the head to lift slightly and the contained fluid escapes, alerting the operator to possible danger
Pressure Vessel Closures Applications
1. Manways for storage tanks, mixing vessels, filters, separators and other batch equipment.
2. Caps for inspection ports and other access openings on towers and reactors.
3. Handholes on processing equipment and medical or laboratory apparatus such as hyperbaric chambers.
ASME Code Stamped Closures
Stamping of TUBE TURNS® T-BoltClosures is available on request at a nominal extra cost. This includes (1) the furnishing of a Partial Data Sheet verifying shop inspection of the unit by a commissioned inspector of the National Boiler and Pressure Vessel Inspectors, and (2) the affixing of the ASME stamp on the closure.
Contact nick@stantonsales.net for more information on "swing bolt closures"
Chemical, Wastewater, Oil & Gas, Petrochemical and Power Plants
24 inch Closure with 4" Sight Glass
12" T-Bolt with Sight Glass Installed on Horizontal Vessel
T-Bolt Closure shown with extra long welding hub (neck) and break over handles for quick access.
Operating Aids for T-Bolt closures.
Vertical T-Bolt installed on a carbon Filter. All vertical closure come with a spring assisted hinge.
T-Bolt Closure | Swing Bolt CLOSURE Pressure Ratings
Larger Size T-Bolt Closures Are Available Upon Engineering Review.
Ratings apply to stainless steel closures with carbon steel bolts and attachments. Closures of all stainless steel are rated lower. For temperatures higher than 450F, consult Tube Turns stating temperature, pressure, fluid and type of o-ring required. Ratings apply for closures with ASME SA325 bolts. Slightly higher ratings are available in some sizes upon application by using ASME SA193 Grade B7 bolts, resulting in a slightly higher price.
Above ratings good for 450F. “Buna-N” is the standard 0-ring gasket material. For services above 250F or where special corrosive conditions are to be encountered, 0-rings of “Viton”, Silicone Rubber, “Neoprene’ Ethylene Propylene, “Teflon Encapsulated” (Viton or Silicone Core) can be furnished at an extra charge.
All dimension are in inches. When ordering, please specify class, nominal size, bore, material and service conditions. T-Bolt Closures with longer hubs; Closures made to I.D. dimensions; or Closures equipped with Sight Glasses, Break-over Wrenches, Camlocks and other accessories are available on special order. *Standard Closures are taper bored to match standard wall thickness.
Spare Parts: Stock two extra O-rings per closure for each individual closure. If several closures of the same size are installed close to one another, the number of extra O-rings may be reduced. Replacement bolts and swing nuts are readily available from Tube Turns.
T-BOLT CLOSURE OPTIONS
Break-Over Wrenches and Camlocks are optional attachments and accessories adding further to the versatility and utility of our T-Bolt Closures. Attachment of either of these options to the closure’s T-Bolts provides extra convenience, speed and ease in tightening the bolts. These attachments eliminate the need for separate wrenches.
Now Offering Pipeline Pig Signalers
The Sypris® Technologies Sig-Tech® intrusive Pig Signaler can be installed at pre-determined intervals on pipelines to detect the passage of a cast polyurethane pigs or spherical type pigs.