J D CONTROLS

Memco, Ahmedabad, Gujarat

Butterfly valve is a flow regulating disc valve, rotary valves in which a disc – shaped closure member is rotated through 90º, or about to open or close the flow passage. The main function of these valves is to control the flow of liquids through a section of pipe. Butterfly valves are mainly used in waste treatment systems.

OPERATING PRINCIPLES:–

Butterfly Valve movement of the disc will depend on whether the valve is open or closed either partially or completely. If the valve is opened partially, it means that the disc will not be rotated a full one quarter turn, thus it cannot provide unrestricted passage. This means that, smaller amounts of fluid or air will pass through. However, if the valve is opened completely, the disc will be rotated 90 degrees then larger amounts of air or fluid will pass through.

A Stem [shaft] which moves perpendicular to the axis of flow of the working medium, there will be one gate or wedge in gate valve and it will control the fluid flow. Shape of gate or wedge of gate valve will be a type of flat circular plate or rectangular plate. Sometimes, gate or wedge is also termed as disc of gate valve.

Gate Valve handle wheel when rotated in clockwise direction, steam and gate will move in downward direction across the fluid flow line and gate will be tightly located between the two seats. Hence there will not be any leakage of fluid through the valve once valve is closed completely. When handle wheel will be rotated in anti-clockwise direction, steam and gate will move in upward direction across the fluid flow line and valve will be opened from closed position and will permit the flow of fluid through the gate valve. Once gate valve is completely opened, it will permit no resistance or very little resistance to the flow of fluid.

JD CONTROLS GATE VALVES:-

JD. Controls Gate Valves are Outside Screw, Rising Stem, Bolted Bonnet Construction, threads are away from the line fluid and easy to lubricate.

The body bonnet joint for all class of Gate Valve is in CircularRound/Rectangular Shape. In Gate Valve from 150# Rating body & bonnet joint have male-female type joint with a gasket.The Gate valve is also available in different types of Disc-Gate such as Double Disc Gate, Solid Gate, Flexible Gate, Parallel Slide Gate, Conduit Gate etc. to suit industrial various applications.

Rising Spindle: -Outside Screw & Yoke (OS & Y) design keeps the stem threads outside the valve and is recommended where high temperatures, Corrosives, and solids in the line might damage the stem threads inside the valve. When Gate Valve will open, the stem extends above the hand wheel indicates the position of the gate.

Valves Trims: Trim refer to internal working parts of valves. In Gate Valves the Stem (Spindle), Seat Ring, Back Seat Bush, Gland Bush ARS trim parts.

Valves Seat: Itcan be Integral Seat with body Casting.

Renewable: Separate Seat Rings that screw into the valve body, which is called as Renewable Seats.JD Gate Valves are OS & Y Type, Rising Spindle, Bolted Bonnet design, threads are away from the line fluid and easy to lubricate. Gate Valve body ports are streamlined, permitting unobstructed flow, reduces turbulence, results in lower pressure drop and lower erosion. JD Gate Valves bonnet castings are of one piece construction, where the yoke is integral with bonnet up to 6 size.

Our manufacturing range also coversJACKETED GATE VALVE, Thermic Fluid Hot Oil Jacketed Gate Valve & Steam Jacketed Valve for sticky, viscous, molten sulphur, bitumen, asphalt application.

JD An ISO 9001, ISO 14001 & OHSAS 18001 certified company Gate Valve Manufacturer, Alloy 20, Duplex Steel, Hastelloy, API 600, API6D, API 603 Standard Gate Valve Exporter, Supplier, Stockist, Importer. Rising Stem, Bolted Bonnet, Austenitic Stainless Steel Gate Valves, Flanged Butt Weld End.

SALIENT FEATURES:

• Body & Bonnet made from high quality casting with liberal sections. The castings are precision machined for high performance
• Bi-Directional Shut-Off
• Die moulded Graphite (Grafoil) Packing Rings, controlled clearance between stem, gland and bonnet bushing for guaranteed low emissions and also suitable for higher temperature.
• Deep stuffing box is providing for tightness and maximum long packing life.
• Swinging Eye Bolts facilitate easy access to the stuffing box.
• Back seating feature facilitates repacking of the stuffing box on line with the valve in fully open position.
• Seat Ring Screwed in to the body are replaceable type. Seal welded type Seat Ring & Integral Seat cab also be offered on special request.
• Stellited Wedge (Gate), Seat Ring & Back Seat can also be offered on special request.
• Higher Pressure & Higher Size Valves are provided with Thrust Bearings and also with Gear drive arrangements.
• In built wear life for long duration of service.

SWING CHECK VALVES :-

PURPOSE:-

JDcheck valvesare ideally suitable for vertical and horizontal application. A range of Check Valves (Non-Return Valves) suitable for oil, gas, water, refining, power and chemical applications where the prevention of flow reversal is mandatory.

DESIGN & OPERATING PRINCIPLE :-

DESIGNJD Check Valves are Bolted cover design up to 600# and above pressure seal design. It is designed for long service life and maintenance free operation. It has a full-flow area body and is equipped with a disc arm with dual precision pins for optimum disc connection and protection against damage due to vibration.

OPERATING PRINCIPLE-A swing check valve consists of a flap or disc of the same diameter as the pipe bore, which hangs down in the flow path. With flow in the forwards direction, the pressure of the fluid forces the disc to hinge upwards, allowing flow through the valve. Reverse flow will cause the disc to shut against the seat and stop the fluid going back down the pipe. In the absence of flow, the weight of the flap is responsible for the closure of the valve; however, in some cases, closure may be assisted by the use of a weighted lever.

PNEUMATIC VALVES:

J D Automation series ball valve accepts an actuator or gear box can be bolt directly on the mounting pad (as per ISO 5211) of the valve body. No. extra brackets/couplers are required. The bottom of the actuator is rest on the mounting pad of the valve. There are no external moving parts. The coupler/adapter is less subject to corrosion. An external bracket does not exist to create surfaces that may be untrue. This design alleviates a number of problems mentioned above.

Automation Series Ball Valves known as Direct Mounting Pad Ball Valve, ISO Mounting Pad Ball Valve, ISO 5211 Direct Mounting Pad Ball Valve, Remote Operated Ball Valve, Pneumatic Operated Ball Valve, Actuator Operated Ball Valve, Fire Safe Ball Valve, Fire Safe Approved Ball Valve, API 607 Fire Safe Design Ball Valve, API 6D Ball Valve, Automatic Ball Valve, Electrical Operated Ball Valve

ADVANTAGES OF JD DIRECT MOUNTING PAD VALVES FOR ACTUATOR & GEAR OPERATORS:

International Standard : Featuring an ISO 5211 Mounting Pad for direct mounting of Actuators and Gear Box on valve.Strength of mount between : No brackets that can bend after installation. valve/actuatorSafety : No pinch pointsCompactness : Smaller/Shorter package takes up less space in pipe galley. Low Profile.Actuator/Valve Stem alignment : Shorter distance between valve/actuator allows closer tolerance to minimize torque.Modular: Simplicity : No confusion as to how bracket bolts to equipments or how to install adapter.Screwed End : ANSI B 1.20.1(BSP/NPT)Lighter Weight : Package no longer includes bracket and large adapter reduce weight.Direct valve stem/actuator connection :Less chance for hysterisis. One less connection with no adapter involved.Maintenance : Often no packing to adjust. Less corrosion in the valve stems Area from atmosphere.Long Life Performance : Its offer long life, smooth, easy performance without any preservingStandard Feature : Fire Safe Design, Antistatic Device & Blow-out Proof Stem.

PNEUMATIC VALVE RANGE:

ISO 5211 Pneumatic Valve, ISO 5211 Direct Mounting Pad Pneumatic Ball Valves, ISO Mounting Pad Pneumatic Ball Valve Manufacturer, Pneumatic Ball Valves Manufacturer, Exporter & Stockist

J. D. Controls manufacturing High performance Forged Steel Ball Valve as per international design and standard to get 100% Client Satisfaction and repeat order with total interchangeability, superior quality, workmanship & service. These Ball Valves come in Three Piece Design (1/2 to 2) to suit various critical, non-critical applications and pressure rating up to 800 class in regular (reduce) bore design.

J D P.T.F.E. seated Forged Steel Ball Valve gives Zero Leakage, Tight Shut-Off and Low Torque with easy smooth operation at temperature ranging from -20 C. to +220 C. Electro-Polished, Buff Finish & Ultra clean valve also provided for Food & Pharmaceutical Industries on request.

WIDE RANGE OF BODY SEAT, SEAL & PACKING:

J D Ball Valves are also available with different type of Seat, Seal & Packing material such as P.T.F.E. (Virgin) / Glass Filled P.T.F.E. / Carbon Filled P.T.F.E. / Graphite (Grafoil) / PEEK to suit special requirement of client.

DESIGN & TESTING INTERNATIONAL STANDARD:

• Valve Design : BS 5351 / ANSI B 16.34
• Pressure Testing : BS 6755 Part II / API 598
• Face To Face : ANSI B 16.10
• Butt Weld End : ANSI B 16.25
• Socket Weld End : ANSI B 16.11
• Screwed End : ANSI B 1.20.1(BSP/NPT)

SALIENT FEATURES:

• High Performance Ball Valve
• Longer Life
• Positive Shut off
• Quick in Action
• No Lubrication
• Compact Design
• Low Pressure Drop
• Simplicity

The globe valve is used for throttling flow control. Shut off is accomplished by moving the disc against the flow stream rather than across it as in the case with a gate valve. The globe valve is an excellent valve to use for on-off service, but is highly suited for frequent cycling and control of fluids anywhere in amount or volume between the open and closed positions.

OPERATING PRINCIPLES:-

PURPOSE

JD check valvesare ideally suitable for vertical and horizontal application. A range of Check Valves (Non-Return Valves) suitable for oil, gas, water, refining, power and chemical applications where the prevention of flow reversal is mandatory.

DESIGN & OPERATING PRINCIPLES :-

DESIGN JD Wafer Type Check Valve has short face-to-face dimensions and low weight allows a simple space saving installation between the companion flanges. The valves are suitable to mounting between weld neck or slip on type companion flanges of different standards.They are specially developed for applications where a low-pressure loss is essential.

OPERATING PRINCIPLE-Opening and closing of the valve will take place at an extremely low-pressure difference over the valve disc. The eccentric disc shaft combination with the disc seat guarantees a positive shut off returning media. Wafer check valves are becoming the preferred type of check valve for most applications, due to their compact design and relatively low cost.

Butterfly Valve have been developed with extensive application, design and manufacturing expertise. J. D. High Performance Slim-Seal, Concentric design Butterfly Valves are reliable, maintenance free shutoff with permanently gas-tight seal with an integrally moulded or replaceable elastomer body liner. J. D. Butterfly Body having two nos. flange locating holes for sizes up to 12 and from size 14 and above 04 nos. for easy alignment of valve during installation. Flange locating hole confirm to as per ANSI B 16.5 Class 125 & Class 150 BS 10 Table D, E, F PN 6, PN 10, PN 16 or other international standard. J. D. High performance b

Gate Valves are Outside Screw, Rising Stem, Bolted Bonnet Construction, threads are away from the line fluid and easy to lubricate.We make Gate Valve body ports are streamlined, permitting unobstructed flow, reduces turbulence, results in lower pressure drop and lower erosion. J.D Gate Valves bonnet castings are of one piece design, where the yoke is integral with bonnet up to 6 Size. The body bonnet joint for all class of Gate Valve is in Circular Round Shape. In Gate Valve from 150# Rating body & bonnet joint have male-female type joint with a gasket.

PURPOSE:-

JD pinch valves are ideal solutions where shut-off andcontrolapplications involve abrasive or corrosive slurries, muddy sediment, silty liquid powders or coarse substances.

The number of design variations is virtually unlimited as the modular structure of a JD valve enables the selection of any actuator, valve body construction and sleeve material to fit specific process conditions.

OPERATING PRINCIPLES:-

JD Pinch valve is simple. In the open position, the valve is at full bore with no flow restrictions thus making the valve an integral part of the pipeline. During closing, two pinch bars squeeze the sleeve shut on the centerline. The JD valves provide a 100% tight shut-off.

MODULAR DESIGN OF THE PINCH VALVE

JD modular pinch valve design has three main components: the sleeve, the body and the actuator (manual, pneumatic, and electric). The sleeve is the only part that is in contact with the process medium. The construction and materials of all three main components can be tailored to suit most process conditions. Self-cleaning JD CONTROLS valves provide 100% tight shut-off even if solids have built up on the sleeve wall. When compressed, any crystallized particles flake off the sleeve surface and are washed downstream.

JD pinch valves are particularlysuitable for the process industry for shut-off and control applications.JDC provides pinch valves with open, sealed and general line valve bodies.

JD-PINCH VALVE OFFERS THE FOLLOWING BENEFITS:

• durability in demanding conditions
• Long service interval, low cost
• No blocks because of structure, reliability
• Can be tailored to the different needs

TYPICAL USERS ARE:

• Mines and concentrator
• Wastewater processes
• Chemical industry
• The energy industry and power plants
• Pulp and paper mills
• Grain storage, loading, unloading (rubber sleeve for food)

As a small manufacturer, we are agile and we can manufacture valves tailored to customer needs. The design, actuator, positioner, andsleeveare completely modifiable so you dont have to make any compromises. The frame Can be galvanized and powder coated.

Actuator: Pneumatic actuator controlled by magnetic valve or positioner from finish manufacturer

Flange borings: Full size flange with flange borings, DIN or ANSI -standard. Frange borings have been galvanized and powder painted

Sleeve:Is made of natural rubber with textile reinforcements. The sleeve is only part which is contact with the flowing material. Sleeve can be eaily changed.

Press section: The positioner guides the press section of actuator into wanted position to control the flowing.

Positioner/Magnetic valve: Controls the actuator. Magnetic valve opens or shut down the flowing. The place of positioner can be tailored.

Opening stripes: Have been attached in to press section. This secures that the sleeve will open in every situations.