NOTE- IS: · 1m TABLE 10 WELDING NECK FLANGES (Clausts alld IS. 63ft • It71 TABLE 11 PLATE FLANGES FOR WELDING. NOM SIZE, FLANGE, RAISED FACE, DRILLING, NECK. D, b, h1, d4, f, BOLT NO, NO. d2, K, d3, h2, r. , , 26, 70, , 5, M27, S2, 30, , , Phone: + Specification For Flanges. Flanges. As per B.S 10 Flanges. Welding Pressure. 10 Kgs. / cm2 equivalent. ND 10/IS: T/

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The integrally moulded spherical profile seat with a matching profile on flanged disc shoulder both closed die moulded ensures perfect sealing with minimum operating torque and prevents any fluid ingress into the shaft bores. Flanges not integral Machined at Back. A real workhorse from the IV stables, IVGK model Butterfly valve incorporates the optimum design features to provide long trouble free service in the field.

After welding, flanges shall be heat-treated, except that welds required for finish- and appearances only need not be heat treated, if falnges by the purchaser. The lugged version with threaded holes can be used as end of line valves or terminal end valves.

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The top shaft sealing is through stuffing box type gland sealing arrangement, which si field adjustable. This general purpose soft seated Butterfly valve has a fully us lined single piece body with centric disc construction and is available in wafer type body pattern.

Post on Nov 5. All dimensions in millimctres. Yet another real workhorse from the IV stables, IVTL model Butterfly valve incorporates the optimum design features to provide long trouble free service in the field. These shall Abe screwed in 6 shall as agreed be prepared flaanges between7. The purchaser shall specify the weld preparatio? Where machining is carried out it may be either by spot facing at the bolt holes or by back facing at the option of the manufacturer.

NOTE 2 – The minimum tensile strength been specified in the relevant specifications.

Different Drilling Standards For 150# Flanges

They shall be cleaned out to sound metal before welding, and shall be submitted to the purchasers inspector for approval in this condition, after which they may be welded if the purchaser so agrees. He shall be at liberty to reject any material which does not comply with the requirements of this. Its split body makes it easy for seal replacement during maintainance. The fully circular back up elastomer and live loaded disc shoulder sealing ensures bubble tight closing of the Valve with zero shaft leakage.

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The valve has a fully rubber lined body and a rubber encapsulated disc with a square slot for the drive end shaft.

All dimensions in millimetres. Nominal SizeA continuous produced by a 3 mm radius round-nosed tool approximately 1. The PTFE seat liner covers the entire wetted surface of the body and extends on to the flange contact faces, thus eliminating possibility of any media contact with the body metal.

API category A Valve iz to face dimensions: If repairs by welding arc carried out, the castings shou! The valve’s unique design totally eliminates media contact with any metallic surface of the valve. When the welding of defects is permitted, the welding rod shall be such as to produce a weld having characteristics similar to the parent metal. IVR flnges an ideal choice for furnace air flow and combustion control applications.

The mechanical stopper provided on the valve body ensures precise valve closing every time to ensure specified seat tightness. Pressure Pressure Allowable Allowable Other ratings flangws primary service Gmperature, ratings at any other temperature, rS II T,stress value at primary service temperaturt- stress value at any temperature, 7, properties Proper9 are given below: The term integralflange applies to flanges integralwith pipes, valves and2.

The lightweight construction with the narrow wafer body enables easy fitment of these valves in ducts, manifolds and exhaust lines without additional support or strengthening of pipe lines. The valve is available with 3 distinctly different seat design versions, viz.

Use this table also for nominal sizes flagnes to 65 mm for 1. The double offset disc design nearly eliminates the seating wear due to the camming action of the disc flanfes closing. The thickness of the portion of the flange which connects it to the pipe should be not less than the pipe thickness nor more than 3 mm thicker.

:: Chandranchal Group | Pipes and Valves, Valve and Pipe Fittings ::

All dimckonr N–Far in millimetres. If the difference is more than 3 mm, it may be ncgotiatcd in a slope of 1 in 5. The ultimate in high js Butterfly valves, IV’s IVEX-series incorporates the ‘state of the art’ valve technology to ls perform the competition. IlSperification for carbon stw! The IVR model Butterfly dampers, offered by Intervalve India are essentially seatless Butterfly valves intended for low pressure gas lines and air lines.

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Where there is no application standard the method of attachment shall be the subject of agreement between the purchaser and the manufacturer. C 70 80 vlanges 80No. An adjustable gland box type shaft sealing arrangement permits on line adjustment of the packing to ensure zero leakage.

The ISI Mark on products covered by an Indian Standard conveys the assurance that flannges have been produced to comply with the requirements of that standard under-a well-defined system of inspection, testing and qualit control which is devised and supervised by ISI and operated Ly the producer.

The wafer style body has universal design to fit between pipe flanges of almost all popular flange standards.

For alloy steel studs or bolts, nuts of a similar steel, If carbon steel is used, it shall have but flannges a different qrade shall be used. API Flange standard conformity: The disc has a spherical profile and comes out of contact with seat in the initial opening itself. Ail dimensions in millimetres. Outside Diameter D Machined 63992 to nun inclusive Over Over mm to mm inclusive mm lo mm inclusive f f 1 mm 1.

SIZE10 15 20 2.

The valve is available in ‘wafer’ as well as ‘wafer lugged’ version with a host of seat and encapsulation material to cater to majority of the chemical process industry requirement. Soft seated, Fire safe and I to Metal seated with wafer or wafer lugged body option. API category B Pressure temperature rating: Alloy steel flanges shall be marked with the symbols designated in Table 1.

Details o P conditions under which 6932 licence for the use of the ISI Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.