Products & Services
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Supplier: Robvon Backing Ring Company, Inc.
Description: Designed primarily for automatic welding and to allow quick and easy joint alignment where the inside diameters are slightly out-of-round. Nubs can be chipped off or left intact to be melted into first root pass.
- Features: Specialty / Other
- Accessory: Weld Backing
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Supplier: Accuris
Description: INTERNAL MACHINING AND SOLID MACHINED BACKING RINGS FOR CIRCUMFERENTIAL BUTT WELDS
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Supplier: Robvon Backing Ring Company, Inc.
Description: If you are not able to find a comparable ring here in our "Standard" Machined Rings, please Mail / Fax your sketch or drawing and we will be happy to quote on a " Custom" ring for you.
- Welding Filler Types: Nickel Alloy, Steel - Carbon, Steel - Stainless
- Features: Other
- Joining Process / Product Form: Weld Insert / Backing Ring
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Supplier: Robvon Backing Ring Company, Inc.
Description: Conspacer, which combines a Robvon Backing Ring and a consumable insert ring, is suited for use in high and low-pressure piping, in facilities where TIG welding is used to join pipe or tubing. Filler metal feature ensures alignment of pipe ends and automatically sets root
- Features: Specialty / Other
- Accessory: Weld Backing
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Supplier: American Cast Iron Pipe Company
Description: compressive force exerted by the backing ring on the restraining segments result in dependable gripping of the spigot when thrust is applied. The rubber backing ring for the Field Flex-Ring does not perform any sealing function for the joint. A separate, standard
- Material: Iron (Ductile)
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Supplier: Robvon Backing Ring Company, Inc.
Description: Robvon Squings are designed for quick, easy alignment of square or rectangular tubing and to assure a precise, close tolerance fit-up. They allow complete penetration and fusion of the weld.
- Diameter / Thickness: 0.125 inch
- Welding Filler Types: Nickel Alloy, Steel - Carbon, Steel - Stainless
- Features: Other
- Joining Process / Product Form: Weld Insert / Backing Ring
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Supplier: ASME
Description: tolerances). Coverage includes preparation for joints with the following: no backing rings; split or noncontinuous backing rings; solid or continuous backing rings; consumable insert rings; gas tungsten arc welding (GTAW) of the root pass.
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Supplier: ASME Standards and Certification
Description: tolerances). Coverage includes preparation for joints with the following: no backing rings; split or noncontinuous backing rings; solid or continuous backing rings; consumable insert rings; gas tungsten arc welding (GTAW) of the root pass.
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Supplier: U.S. Plastic Corporation
Description: backing O-ring for low torque and wear compensation-no adjustment necessary. Available in PVC with solvent cement or threaded end connections. Monobloc structure provides high safety level: user cannot disassemble or mis-adjust.
- Valve Size: 0.5 inch
- Valve Type: Ball Valves
- Features: Socket Weld / Solder, Union
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Supplier: International Polymer Solutions Inc.
Description: PVC, Polypropylene or PVDF. For the highest level of chemical inertness and overall fluid handling performance all three configurations include 100% Virgin PTFE for the Bellows and Backing Plate construction. O-Ring Seal options include EP or Viton. All DI Valve come standard with high
- Valve Size: 0.375 to 1 inch
- Number of Ports/Ways: 2
- Flow (Cv): 2.1 to 13.5
- Pressure Rating: 30 to 75 psi
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Supplier: Clark Solutions
Description: conduit port. The valves are a one-piece, compact design, non-union type. O-rings are EPDM, seats are PTFE with EPDM backing cushions. PVC conforms to ASTM D1784 Cell Classification 12454-A, and CPVC conforms to ASTM D1784 Cell Classification 23567-A. The valves are rated 150 psi at
- Valve Size: 0.375 to 2 inch
- Pressure Rating: 150 psi
- Number of Ports: 2
- Media Temperature: 30 to 120 F
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Supplier: National Bronze & Metals Inc.
Description: Impellers, Heat Exchanger Tubes, Evaporator Tubes, Distiller Tubes, Condenser Plates, Refrigerators, Process Equipment, Condenser Components, Ferrules, Welding Backing Rings, Flexible Metal Hose, Weld Wire, Boiler Parts, Condensers, Propeller Sleeves, Heat Exchanger Components
- UNS Number: 71,500
- AISI / AA / CDA Grade: 715
- Overall Width / OD: 0.75 to 10 inch
- Overall Thickness: 0.75 to 10 inch
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Supplier: Rogers Machinery Company, Inc.
Description: Welded manifold construction to eliminate leaks ASME coded vessels-full penetration welds (with backing rings), 1/16" corrosion allowance and two-part epoxy finish Modular Electronic Controller (MEC) with AMLOC® energy management Aquadex® moisture indicator Pre-mounted prefilter and
- Dryer Technology: Desiccant
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Supplier: Assured Automation
Description: valve seats. O-ring backing cushions to compensate for wear and prevent seizure of the ball. Shear point above the o-ring to maintain system integrity in the unlikely event of a stem breakage. DUAL BLOCK® union nut locking mechanism. Optional feature to allow the valve position
- Valve Size: 0.5 to 2 inch
- Pressure Rating: 232 psi
- Number of Ports: 3
- Flow (Cv): 2.45 to 224
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Supplier: Hammond Manufacturing Company Inc.
Description: compatibility. Gaskets NOTE: Gaskets are included with watertight 1590 enclosures. They can also be purchased as a kit if you'd like to upgrade an IP54 enclosure to IP65. Each kit includes two pre-formed silicone gaskets. Gaskets include adhesive backing for easy installation. Allows
- Type: Electronic and Instrument Enclosures
- NEMA Rating: NEMA / IP Enclosures
- Features: Other
- Ingress Protection(IP) Rating Against Moisture: Type 5, Type 6
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Supplier: FX PCB Co., Ltd.
Description: below table of FX PCB: Items mass-production low volume The layer of flex board 1-16L 1-30L PCB Thickness ≤0.4mm / Line width/Line space inner layer 3mil/3mil (Hoz) 2.5mil/2.5mil (Hoz) outer layer 4mil/4mil (1Oz) 3mil/3mil (1Oz) Annular Ring ≥4mil / BGA 0.15mm BGA 0.15mm BGA Tolerance of
- Thickness: 0.015748031496062992 inches
- Type: Film / Flexible Substrate
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might feature traditional malleable iron or lower steel stamping that helps adjust the wrenches perfectly. 8) Square Drive Ratchet Wrenches Square drive ratchet wrenches are perfect for ratcheting line-up clamps during welding (read more)
Browse Hand Tools Datasheets for Lowell Corporation
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Backing Ring Welding Procedure (.doc)
Robvon Backing Rings are inserted into the beveled pipe end with the spacer nubs flush against the pipe land and the ring gap positioned in the area of first bead deposition. The beveled end of the adjoining pipe is slipped onto the Robvon backing ring until the edge of the pipe land is firmly
More Information Top
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Corrosion of Weldments
Equipment crevices, such as weld backing rings , tube- tubesheet joints, or flanged connections, are common sites for localized corrosion in the process environment.
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Nalco Guide to Cooling Water Systems Failure Analysis, Second Edition > Biologically Influenced Corrosion
The circumferential weld backing ring was severely corroded.
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Nalco Guide to Boiler Failure Analysis, Second Edition > Corrosion during Cleaning
Acid corrosion beneath weld backing ring .
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ZCORW2006P043
Corrosion Associated with Weld Backing Rings .
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ZASMHBA0003622
Corrosion Associated with Weld Backing Rings .
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Piping Handbook, Seventh Edition > DESIGN BASES
The system can be assembled with internal weld backing rings to reduce fit-up and welding costs, but backing rings create internal crevices, which can trap corrosion products.
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Cast Steel And Hollow Sections – New Applications And Technologies
Variant 3: bevelled, with tack- welded backing rings (t = 3 to 4 mm) Variant 4: Backing with cast- on nose .
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