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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Post on Nov 5. 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 IVR model Butterfly dampers, offered by Intervalve India are essentially seatless Butterfly valves intended for low pressure gas lines and air lines.

Foanges 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 flwnges.

QFF Brown and Green IS6392 Table 17 Flange, Size: 20-30 and >30 inch

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 mechanical stopper provided on the valve body ensures precise valve closing every time to ensure specified seat tightness.

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. The ISI Mark on products 63392 by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under-a lfanges system of inspection, testing and qualit control which is devised and supervised by ISI and operated Ly the producer.

These shall Abe screwed in 6 shall as agreed be prepared theto between7. All dimensions in millimetres. 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.


Use this table also for nominal sizes 6 to 65 mm for 1.

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 has excellent throttling characteristics with good low flow control capability, which offers an inherently higher rangeability. The disc has a spherical profile and comes out of contact with seat in the initial opening itself. The double offset disc design nearly eliminates the seating wear due to the camming action of the disc during closing. The type of protector and method of attachment shall be approved by the purchaser.

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If repairs by welding arc carried out, the castings shou! Ilangcs the bolt holes shall flangee drilled off centres. Pressure Pressure Allowable Allowable Other ratings at 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 foanges Nominal SizeA continuous produced by a 3 mm radius round-nosed tool approximately 1.

The top shaft sealing is through stuffing box type gland sealing arrangement, which is field adjustable. For details reference may be made to IS: All dimensions in millimctres. Even though the body is designed for a maximum pressure of 2.

Norm — The two types of Ranges shown arc alternatives at the flqnges Values other steels will be included when available.

The valve has a fully rubber lined body and a rubber encapsulated disc with a square slot for the drive end shaft. C 70 80 80 80No. When the welding of flangws is permitted, the welding rod shall be such as to produce a weld having characteristics similar to the parent metal.

Carbon and Carbon Matzganese Steele 1. The valve’s unique design totally eliminates media contact with any metallic surface of the valve.


Flange Adaptor, Flanges, Flange Type Adapters, Manufacturer, India

Developed By Trillion IT. The purchaser shall specify the weld preparatio?

He shall be at liberty to reject any material which does not comply with the requirements of this. 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. NOTE 2 – The minimum tensile strength been specified in the relevant specifications.

API category A Valve face to face dimensions: Outside Diameter D Machined Up to nun inclusive Over Over mm to mm inclusive mm lo mm inclusive f f 1 mm 1. The ultimate in high performance Butterfly valves, IV’s IVEX-series incorporates the ‘state of the art’ valve technology to out perform the competition. 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.

Flange N Flange

The lugged version with threaded holes can be used as end of line valves or terminal end valves. 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. API category B Pressure temperature rating: The term integralflange applies to flanges integralwith pipes, valves and2.

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. Alloy steel flanges shall be marked with the symbols designated in Table 1.

Ail dimensions in millimetres. 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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