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 double offset disc design nearly eliminates the seating wear due to the camming action of the disc during closing. 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. The valve’s unique design totally eliminates media contact lfanges any metallic surface of the valve.

Use this table also for nominal sizes 6 to 65 mm for 1. The disc has a spherical profile and comes out of contact with seat in the initial opening itself. Norm — The two types of Ranges shown arc alternatives at the option The lugged version with threaded holes can be used as end of line valves or terminal end valves. The purchaser shall specify the weld preparatio? The integrally moulded spherical profile seat with a matching profile on the disc shoulder both closed die moulded ensures perfect sealing with minimum operating torque and prevents any fluid ingress into the shaft bores.

Post on Nov 5. 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. However, a quality factor of 0. API category B Pressure temperature rating: Ail dimensions in millimetres.

Intervalve’s GKL series valves are designed to meet the demanding requirements of the general utility valve market with the HVAC segment in particular.


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. IVR is an ideal choice for furnace air flow and combustion control applications. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with a centric disc construction and is available in wafer lugged style body pattern to ensure precise location in pipeline.

The valve has a fully rubber lined body and a rubber encapsulated disc with a square slot for the drive end shaft. Even though the body is designed for a maximum pressure of 2. Its split body makes it easy for seal replacement during maintainance. Details o P conditions under which a licence for the use of the ISI Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.

After welding, flanges shall be heat-treated, except that welds required for finish- and appearances only need not be heat treated, if approved by the purchaser. 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. API Flange standard conformity: SIZE10 15 20 2. Outside Diameter D Machined Up to nun inclusive Over Over mm to mm inclusive mm lo mm inclusive f f 1 mm 1.

Stockists & Suppliers Of

He shall be at liberty to reject any material which does not comply with the requirements of this. Values other steels will be included when available.

The term integralflange applies to flanges integralwith pipes, valves and2. If repairs by welding arc carried out, the castings shou! The ISI Mark on products covered by an Indian Standard conveys the flangess that they 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.

Diamond Flanges & Fittings Pvt. Ltd.

Flanges not integral Machined at Back. The wafer style body has universal design to fit between pipe flanges of almost all popular flange standards. 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.


Developed By Trillion IT. 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 63392 purchaser so agrees. The valve has excellent throttling characteristics with good low flow control capability, which offers an inherently higher rangeability.

For alloy steel studs or bolts, nuts of a similar steel, If carbon steel is used, it shall have but of a different qrade shall be used. Where there is no application standard the method of attachment shall be the subject of agreement between the purchaser and the manufacturer.

WeldNeck Flanges (IS:6392,ANSI B16.5)

Nominal SizeA continuous produced by a 3 mm radius round-nosed tool approximately 1. These shall Abe screwed in 6 shall as agreed be prepared theto between7. API category A Valve face to face dimensions: All dimensions in millimetres.

NOTE 2 – The minimum tensile strength been specified in the relevant specifications. Ilangcs the bolt holes shall be drilled off centres.

The valve is available in ‘wafer’ as well as tlanges lugged’ version with a host of seat and encapsulation material to cater to majority of the chemical process industry requirement.

For details reference may be made to IS: The mechanical stopper provided on the valve body ensures precise valve closing every time to ensure specified seat tightness. Alloy steel flanges shall be marked with the symbols designated in Table 1.