Opening Hour

7*24H Service hotline

Call Us

+012-58386189

Image

Factors Affecting Gasket Performance

NOTE 2 The above mentioned torque values are based on a maximum bolt stress of 60 000 psi Bolt yield should be at least 80 000 psi NOTE 3 This table does not take flange strength into consideration We recommend consulting the flange manufacturer to confirm the suitability of the above-mentioned values NOTE 4 Apply torque in increments Get price

Image

Flange Joints Avoiding Installation Pitfalls

The current version of the standard AWWA C207 (2013) not only indicates the standard flange specifications but dictates the only acceptable bolt nut and washer grades respectively and limits the choice of gaskets to one of three normally interchangeable materials for water service Get price

Image

torque guidelines

reliable seal This torque table is not intended to communicate the minimum possible torque value to seal GORE Gaskets Consult Gore when selecting a lower torque value Caution should be used when using this documentation as proof of flange design It is the user's responsibility to meet all applicable local laws and requirements Get price

Image

Tightening Torque Recommendations for Hydraulic Couplings

The torque values in the following table give minimum and maximum torque recommendations The minimum value will create a leakproof seal under most conditions Applying torque values greater than the maximum recommendation will distort and/or crack the fitting Coupling and Adapter Torque Recommendation For 37 45 (Machined or Flared)Get price

Image

AWWA BUTTERFLY VALVES TECHNICAL SPECIFICATIONS

Mechanical-Joint bell dimensions conform to ANSI/AWWA C111/A21 11 Rubber Gasket Joints for Ductile Iron and Gray Iron Pressure Pipe and Fittings Bonding of 3 (80mm) through 20 (600mm) seat conforms to ASTM D429 Standard Test Methods for Rubber Property — Adhesion to Rigid Substrates Get price

Image

Rubber Lined Piping A Solution to Corrosion Resistance

Jul 12 2017It is from the above concern that the line size of Rubber Lined Piping is recommended to be 2" NPS and above A Rubber lined Piping System therefore is an assembly of various flanged Spools/ Fittings prefabricated to a predetermined dimensions The supporting system employed for Rubber Lined Piping is normally a clamp and shoe arrangement Get price

Image

PROPER FLANGE BOLTING

the flanges can be misaligned making it impossible to have uniform seating of the gasket Numbering the bolts may be helpful in following the bolt sequence 7 Repeat step 6 elevating the torque to 50 to 60 percent of the final torque 8 Continue tightening in the recommended sequence until the final torque value is reached Get price

Image

Torque Chart

Torque Chart Nominal Number Size of Min Rec'd Preferred Pipe Size Of Bolts Torque/Bolt Torque/Bolt (in) Bolts (in) (ft ls )b (ft ls )b 0 5 4 0 5 9 19 0 75 4 0 5 12 23 *NOTE This torque table applies for 1/16 and 1/8 thick homogeneous elastomeric gaskets The pressure rating of the material may vary depending on the grade Get price

Image

Durco BTV

Flowserve is the world's largest manufacturer of lined valves with T4E1/ T4E3 plug valves and Atomac ball valves plus the BTV-2000 Tests Every valve is spark tested and hydrostatically tested prior to shipment The valve seat is tested at 150 psi (1034 kPa) while the stem seals are subjected to a Get price

Image

Torque Value Display

For lined or non‐metallic raised face flanges consult the flange manufacturer to confirm the suitability of the values shown Maximum torque per bolt is based upon a gasket stress of either 15 000 psi or the available gasket stress at 75% of bolt yield whichever is lower Get price

Image

ANSI FLANGES B 16

Class 150 and 300 are regularly furnished with 2 mm raised face which is included in the minimum flange thickness Class 400-600-900-1500-2500 flanges are regularly furnished with 7 mm raised faces which is additional to the minimum flange thickness Height of large or small male and tongues is 7 mm Get price

Image

Resistoflex PTFE

PTFE-Lined Pipe Options Supplied Fabricated by CFPC Eliminates flange connections at elbows Sections are bent at any angle up to 90 with a tolerance of 1 Reduces pressure drop across the bend and reduces energy costs Longer bend radius (3 diameters vs 1 5 diameters) Get price

Image

Cloth Inserted Rubber Gaskets

Cloth Inserted Rubber Sheet Cloth Inserted (CI) Rubber is a rubber sheet material that has been reinforced with one or more plies of cloth or duck such as polyester nylon cotton or fiberglass fabric This reinforcement gives added stability in flanged gasket applications requiring mechanical fastenging and reduces creep when there are highGet price

Image

rubber flange lining

Worm Gear Actuated Flange Concentric All Rubber Lined Butterfly Valve Worm Gear Actuated Flange Concentric All Rubber Lined Butterfly Valve 1 Features Rubber lined butterfly valve is a kind of valve with thick polymer lining on the body and disc The lining makesGet price

Image

Proco Series 300 Flanged Rubber Pipe Connector

The full-face rubber flange of the PROCO Series 300 Rubber Pipe Connector is self gasketing Additionally the Style 310-R features a molded in place "O-Ring" on each flange-face for faster sealing with less torque at installation and less long-term maintenance Get price

Image

Styles 741 and 743 Vic

When mating to a serrated flange a flange gasket should be used adjacent to the serrated flange and then the Flange Washer is inserted between the Vic-Flange adapter and the flange gasket B When mating to a wafer valve where typical valves are rubber lined and partially rubber faced (smooth or not) flange † / / / / / / / / / / / /Get price

Image

Design Manual for Lined Piping Systems

As PSI uses both the homopolymer (6 - 8 fittings) and copolymer resins (1 - 8 pipe 1 - 4 fittings) the PVDF lined system is rated from 0F (-29C) to 275F (135C) Because PVDF is only partially fluorinated its chemical resistance is affected by temperature and concentration of liquids and gases Get price

Image

AWWA C 504 BUTTERFLY VALVES

AWWA C 504 design based travelling nut gear operator can be mounted on all valves sizes both for above and underground service For Gear Box to be used above ground a hand wheel and visual posi on indicator can be provided Chainwheel with 2" Square Nut is also available as an op on Get price

Image

Bolt tightening torque for EPDM gaskets

Jan 08 2006We have to use raised face steel flanges mating flat face flanged cast iron valves I know that it is not recommended to use iron flat face flanges with raised face steel flanges but we dont have time to buy new flanges We are using -Rubber gaskets EPDM 1/8 thickness brand S H but I cannot find information from the vendor of the gasket Get price

Image

Rubber Lining Specialists

Rubber Lining's parts are lined on the outside with a special blend of Butyl The inside is lined with a soft natural gum * The inside is lined with a soft natural gum * Butyl provides protection from harmful ultra-violet light and has a high durometer which produces a better torque value increases the part's sealing capabilities and helps prevent non-accidental releases (NARS) Get price

Image

Bolt Torque For Polyethylene Flanged Joints TN

Bolt Torque For Polyethylene Flanged Joints TN-38/January 2010 flange leakage are insufficient torque un-even torque and flange misalignment Written and correct bolt torque specifications and installation procedures will eliminate these problems The flange assembly design and written assembly specifications are controlled by the Get price

Image

Flange Bolt Torque Sequence and Torque Table

Flange Bolt Torque Sequence Torque bolts and nuts in a "CRISS-CROSS" sequence using a minimum of three torquing passes and the maximum bolt stress as defined PASS 1 Torque to a maximum of 30% of the final torque value in accordance with the torque sequence Check that gasket is getting compressed uniformly Get price

Image

GYLON Style 3504

GYLON Style 3504 is a PTFE gasket with aluminosilicate microsphere filler This style gasket is widely used in glass-lined flanges and other light-duty flanges where available torque is limited GYLON Style 3504 creates a tighter seal with improved performance over conventional PTFE which reduces product loss and emissions Get price

Image

Bolt tightening torque for EPDM gaskets

Jan 08 2006We have to use raised face steel flanges mating flat face flanged cast iron valves I know that it is not recommended to use iron flat face flanges with raised face steel flanges but we dont have time to buy new flanges We are using -Rubber gaskets EPDM 1/8 thickness brand S H but I cannot find information from the vendor of the gasket Get price

Image

Materials Specification – 6 for

Materials Specification – 6 for FLANGED RUBBER SEATED BUTTERFLY VALVES 1 (0 017%) of flange diameter Flanges shall be machined to a flat surface with a serrated finish in accordance with AWWA C207 and shall have full-sized bolt holes Material Specifications Flanged Rubber Get price

Image

9DOYH

Suitable to general pipe flange Suitable for shipside valve in the ship Heavy weight Same installation as ordinary valve Schema of concentric type The valve shall be a 90 turn clockwise to close non-jamming resilient seated valve for zero leakage service The valve shall be torque seated and designed in such a manner that theGet price

Image

Torque Chart

Torque values assume that Nickel Anti-Sieze thread lubricant is used If bolts are to be torqued dry increase wrench setting by 20% Table is for standard pipe flanges only Consult LGT Engineering for flange bolt-up procedure target bolt stresses and guidelines for non-standard connections Get price

Image

Garlock GYLON 3504 (Blue Sheet)

Garlock GYLON 3504 (Blue Sheet) Widely used in glass-lined flanges and other light duty flanges where available torque is limited Garlock GYLON gasketing is a family of flat PTFE gasketing materials GYLON high-performance PTFE gasketing is manufactured using a proprietary process that imparts unique physical properties Get price

Image

Gasket Reference Guide

1 Ensure flange faces are clean and free from imperfections These could be detrimental to the sealing performance 2 Carefully remove any solid residue from the flanges using scrapers wire brush or cloth Gasket Installation Surface Finish Recommendations Gasket Description Gasket Cross Section Flange Surface Finish Microinch Ra Flange SurfaceGet price

Image

Weir Valve Selections

rubber Superior to natural rubber in resistance to heat ozone sunlight and oil Typical applications include phosphoric acids magnesium oxide and sodium hydroxide Maximum temperature 200 F (93 C)3 Soft Rubber Good resistance to most inorganic chemicals with the exception of strong oxidizing agents Exhibits outstanding abrasion resistance Get price

Image

Suggested Methods and Guidelines for Torquing and Bolting

Practical Method Used to Prevent Over Torquing Gasket and/or Face Lining Rubber A Mechanical steel ring stop or non-compressible gasket properly chosen to limit compression to 25% on the rubber lined flange joint • When soft rubber lined flange face is used as gasket the rubber lining should be brought up to 1/32 of bolt hole B Get price

Image

Rubber Lined Tank Experts

Abtrex also specialized in rubber lining for abrasion resistant tanks and abrasion resistant pipe Crews of highly trained engineers are available 24/7 From rubber lining repairs to steel repairs and inspections Abtrex can take care of your tank lining and pipe lining needs either at our shop or at yours Get price

Image

Flange Bolt Torque Sequence and Torque Table

Flange Bolt Torque Sequence Torque bolts and nuts in a "CRISS-CROSS" sequence using a minimum of three torquing passes and the maximum bolt stress as defined PASS 1 Torque to a maximum of 30% of the final torque value in accordance with the torque sequence Check that gasket is getting compressed uniformly Get price

Image

Torque Chart

Torque values assume that Nickel Anti-Sieze thread lubricant is used If bolts are to be torqued dry increase wrench setting by 20% Table is for standard pipe flanges only Consult LGT Engineering for flange bolt-up procedure target bolt stresses and guidelines for non-standard connections Get price

6mm high chrome grinding media grinding steel balls for ball mill

structural concrete theory and design th edition free download

gold milling machine processing line

limestone mill suppliers china

price of a mine crusher miami

coal mining advantages and disadvantages for kids

linear sieves screens vibratory

who stands on quarry and environment

manganese steel crushing parts us dealers

china china clay traditional mining methods in cornwall

gold mining equipement and prices

montreal buy braziln grinder mixie

impact hammer concrete crusher

crushing processing plant equipment dealers at sur

for sale vibrating screen for sandgravel machiner

jaw crushers specification plan stone quarry plant Senegal

maintenance of cement grinding unit

indonesia coal mining company

gold wash plant price in australia

super stoneware kenitra mill

m abrasive solutions for marble

ton stone crusher plant for sale in up

vertical raw mill vrm 96 6 650 tpd

belt conveyor handbook free download

catlouge for vibrating screen

quality brand dual chamber rotary crusher price

part of tractor sand machine in cambodia

laxmi engineering 150 tph crusher

iron ore mining equipment required

prince bisley screw conveyor

cedarapids cone crusher 50 portable

jaw crusher blades manufacturer in pakistan

cement plant maintenance manual cement plant

the history of the phosphate mining industry in pretoria

a revolving cylindrical sieve used to trommel screen crushed ore

ball mill pemasok afrika selatan gratery

cedar rapids rahang crusher

roller guides for section mill

ore dressing vibrating circle screen

mini rock crusher in colombia