Universal Flowtech Engineers LLP

Raigad, Navi Mumbai, Maharashtra

IVGK-25 modular design butterfly valve incorporates the optimum design features to provide long trouble free service in the field. This general purpose soft seated butterfly valve has a fully rubber lined single piece body with centric disc construction and is available in wafer type body pattern.
The body liner which also functions as the soft seat, comes in integrally molded (Bonded) version and offers 100 % bi-directional sealing with dry shaft design.
The drive to shaft attachment is through a square drive eliminating dowelling between disc & drive end shaft.

Key Features :

• Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.
• Self lubricated PTFE lined bearings for both drive end and non-drive end shaft ensures minimum bearing friction torque.
• Seat liner extending on to the flange contact faces, eliminates the need for separate flange gaskets during installation.
• Controlled compression of the gasket face to offer optimum sealing & prevent gasket face crushing failure.
• Bi-directional valve with tight shut off sealing capability to hold vacuum to rated pressure in either direction.
• Excellent adaptability for actuated operation through standardised top flange mounting dimensions for actuator fitment.
• Suitability for ON /OFF as well as throttling duties.
• Choice of seat and disc materials to suit media conditions and service requirements.
• Adaptability to fit between companion flanges of all popular flange standards for the wafer style body.
• Possibility of lower seat rating to obtain reduced operating torque and extended seat life for low operating pressures.

IVTLE model Butterfly valve incorporates the optimum design features to provide long trouble free service in the field. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with a centric, rubber encapsulated disc construction  and is available in wafer lugged body pattern to ensure precise location in pipe line.

The body liner which also functions as the soft seat, comes integrally moulded (bonded) version and offers 100% bi-directional sealing against rated pressures of PN10.

Key Features:

• Full PN10 pressure rating for entire range of DN50 to DB350.
• Bi-directional valve with sealing capability to hold rated shut off pressure in either direction.
• Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.
• Self lubricated shaft bearings (PTFE coated stainless steel) for both drive end and non-drive end shaft ensures minimum bearing friction torque.
• Square coupling disk drive arrangements eliminates need for taper pins and exposure of metal parts to media.
• Spherically profiled seat and disc shoulder contact area ensures perfect sealing around the shaft bore and zero leakage.
• External locking arrangement for top shaft to make it blow out proof.
• Seat liner extending on to the flange faces of the body eliminates the need for separate flange gaskets.
• Controlled compression of the gasket face to offer optimum sealing & prevent gasket face crushing due to over tightening.

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. 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 body liner which also functions as the soft seat, come either in a replaceable version or an integrally moulded (bonded) version and offers 100 % bi-directional sealing against full vacuum to rated pressures of PN10 or PN16.

Key Features :

• Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.
• Self lubricated PTFE lined bearings for both drive end and non-drive end shaft ensures minimum bearing friction torque.
• Seat liner extending on to the flange contact faces, eliminates the need for separate flange gaskets during installation.
• Controlled compression of the gasket face to offer optimum sealing & prevent gasket face crushing failure.
• Bi-directional valve with tight shut off sealing capability to hold vacuum to rated pressure in either direction.
• Excellent adaptability for actuated operation through standardised top flange mounting dimensions for actuator fitment.
• Suitability for ON /OFF as well as throttling duties.
• Choice of seat and disc materials to suit media conditions and service requirements.
• The lugged wafer pattern ensures precise self centering of valve between mating flanges.
• Possibility of lower seat rating to obtain reduced operating torque and extended seat life for low operating pressures.

The IVR model Butterfly dampers, offered by Intervalve are essentially seatless Butterfly valves intended for low pressure gas lines and air lines. 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.

IVR valves are primarily intended for low-pressure large volume gas / air flow control applications. The absence of seat substantially reduces the valve operating torque requirements and makes the valve very effective for flow control / regulation duties. IVR is an ideal choice for furnace air flow and combustion control applications.

Even though the body is designed for a maximum pressure of 2.5 bar the maximum shut off pressure is limited to 0.5 bar only. The disc flap is held in position by a stub shaft with an axial locking arrangement provided on the top shaft. The top shaft sealing is through stuffing box type gland sealing arrangement, which is field adjustable.

Key Features:

• Lightweight design suitable for mounting in ducts, exhaust lines and ventilation pipes.
• Very low operating torque due to seatless construction.
• Ideal for flow control / modulating duties in low pressure gas lines.
• Very low pressure drop in open condition.
• Wide operating temperature range to cater to exhaust & flue gas control lines.
• Zero external leak due to the stuffing box type gland sealing arrangement.
• Perfect adaptability for manual or actuated applications.

The ultimate in high performance Butterfly valves, IV’s IVEX – series incorporates the ‘state of the art’ valve technology to out perform the competition. The double offset disc design nearly eliminates the seating wear due to the cam action of the disc during closing. The mechanical stopper provided on the valve body ensures precise valve closing every time to ensure specified seat tightness. The disc has a spherical profile and comes out of contact with seat in the initial opening itself.

The valve is available with 3 distinctly different seat design versions, viz. Soft seated, Fire safe and Metal to Metal seated with wafer or wafer lugged body option.

The valve has excellent throttling characteristics with good low flow control capability, which offers an inherently higher range ability. This feature of IVEX series makes them ideal for the flow control / modulating duties. An adjustable gland box type shaft sealing arrangement permits on line adjustment of the packing to ensure zero leakage.

The fire safe version, IVEX – F model has been fire tested and certified as per the requirements API 607 standard by Lloyd’s Register of Shipping & API 607 Edition. V by Bureau Veritas and TUV.

• Double offset disc design with a spherical profile seat eliminates seat wear and ensures perfect sealing every time.
• Availability of wafer lugged body with through drilled or threaded holes.
• Available in 3 distinctly different seat version viz. PTFE seat, Fire Safe seat and Metal to Metal seated.
• Self- lubricated drive end and non-drive end bearings for IVEX–T and IVEX-F models and galling free metal bearing for IVEX-M versions.
• Stuffing box type gland sealing to enable field adjustment of shaft sealing.
• Gland packing standardised on graphoil rings (non-asbestos) to offer widest operating temperature range coupled with excellent media resistance.
• Metal seat standardised on Inconel 625 material to offer maximum temperature resistance and minimum seat deformation.
• Option of seat material for soft seated version in virgin PTFE or filled PTFE.
• Seat removal without disconnecting of shaft and disc.
• Split ring type thrust pad provided for the drive end shaft prevents axial movement of the disc as well as ensures the required ‘anti-static’ feature for the valve.
• IVEX-F model fire tested in presence of third party agencies as per latest version of API 607 standard.
• Special material of construction available optionally for specific services.

Intervalve’s PTFE lined Butterfly valve model IVTFE provides an optimum solution to the corrosion problems encountered by the chemical process industries with conventional Butterfly valves. 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.

The circularly moulded full  back up elastomer and live loaded disc shoulder sealing ensures bubble tight closing of the Valve with zero shaft leakage. The valve is adaptable for ON / OFF as well as control duty and can be fitted with actuators and accessories as required to meet the specific duty conditions.

Key Features:

• Full PN10 pressure rating for the entire range of valve sizes from DN50 to DN350.
• Bi-directional valve with sealing capability to hold rated shut off pressure in either direction.
• Circularly moulded back up elastomer provides uniform contact pressure over the entire seat without losing shaft bore shape, ensuring bubble tight closure every time.
• Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.
• Self lubricated shaft bearings (PTFE coated stainless steel) for both drive end and non-drive end shaft ensures minimum bearing friction torque.
• Live loaded disc shoulder sealing arrangement through pusher and disc springs in both top and bottom shaft bores, acting on PTFE liner ensures leak free mechanical stem seal.
• Back up elastomer standardised in Viton to ensure excellent corrosion protection and maximum temperature resistance against media fumes and higher temperature.
• Disc springs and fasteners standardised on corrosion resistant stainless steel to ensure long service.
• A choice of exotic metallurgy for the disc, to meet any type of aggressive media.
• Choice of liner materials of virgin PTFE or filled PTFE, which also extends on to the flange contact faces.
• Low operating torque enables selection of smaller size actuators.
• Perfect adaptability for conversion from manual to actuated operation due to standardised top flange.

IVGE model Butterfly valve incorporates the optimum design features to provide long trouble free service in the field. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with a centric, rubber encapsulated disc construction  and is available in wafer lugged body pattern.

The body liner which also functions as the soft seat, comes integrally moulded (bonded) version and offers 100% bi-directional sealing against rated pressures of PN 10. The wafer style body has universal design to fit between pipe flanges of almost all popular flange standards.

Key Features:

• Full PN 10 pressure rating for the entire range of DN 50 to DN 350.
• Bi-directional valve with sealing capability to hold rated shut off pressure in either direction.
• Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.
• Self lubricating shaft bearings (PTFE coated stainless steel) for both drive end and non-drive end shaft ensures minimum bearing friction torque.
• Square coupling disc drive arrangement eliminates need for taper pins and exposure of metal parts to media.
• Spherically profiled seat and disc shoulder contact area ensures perfect sealing around the shaft bore and zero leakage.
• External locking arrangement for top shaft to make it blow out proof.
• Excellent adaptability for actuated operation through standardised top flange dimensions for actuator mounting.
• Seat liner extending on to the flange contact faces of the body eliminates the need for separate flange gaskets.
• Controlled compression of the gasket sealing face to offer optimum sealing and prevent gasket face crushing due to over tightening.

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. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with centric disc construction and is available in wafer type body pattern.

The body liner which also functions as the soft seat, comes in either a replaceable version or an integrally molded (bonded) version and offers 100 % bi-directional sealing against vacuum to rated pressure of PN10 or PN16.

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

Key Features:

• Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.
• Self  lubricated PTFE lined bearings for both drive end and non-drive end shaft ensures minimum bearing friction torque.
• Seat liner extending on to the flange contact faces, eliminates the need for separate flange gaskets during installation.
• Controlled compression of the gasket face to offer optimum sealing & prevent gasket face crushing failure.
• Bi-directional valve with tight shut off sealing capability to hold vacuum to rated pressure in either direction.
• Excellent adaptability for actuated operation through standardised top flange mounting dimensions for actuator fitment.
• Suitability for ON /OFF as well as throttling duties.
• Choice of seat and disc materials to suit media conditions and service requirements.
• Adaptability to fit between companion flanges of all popular flange standards for the wafer style body.
• Possibility of lower seat rating to obtain reduced operating torque and extended seat life for low operating pressures.
• Valves of DN 250 and higher are provided with bottom thrust bearings.
• Valves of DN 600 and higher are provided with additional top shaft sealing and guide brush.