Jacketed Ball Valve (Steam Jacketed Ball Valve)

Jacketed Ball Valve

High Performance Ball Valve

Single Piece Simple Design

Regular (Reduce) Bore Fully Jacketed Ball Valve

Flanged End Connection

Manual Lever / Gear / Pneumatic Operated Ball Valve

Dharmi Engineers offers a range of Fully Jacketed Ball Valves. The jacket covers the body from one flange to the other flange. The body is modified by adding oversize flanges. As example:  2" x 3" Jacketed Ball Valve has the nominal bore of 2" (DN 50) and the flange size is 3"(DN 80). It allows enough space for bolting clearance.

The Jackets assure consistent valve Heating or Cooling of the process media to prevent crystallization or seizing of flow media.  The Jacketed Ball Valve (Heating Jacket Ball Valve) with very well design to help the high temperature steam or oil flow over the valve ball & body parts to keep the media liquid. This applies especially to media like bitumen and liquid sulfur.  In addition, the efficient flow of media is ensured through the elimination of pockets.

Steam, can be used as carrier for heating media. Following quality assurance rules, every valve is tested again after the Jackets have been welded (Fabricated) to the body. Jacket Hydraulic & Air Test is carried out at 6.0 Kg. /Cm².

Generally standard Jacketed Ball Valves are delivered in carbon steel and different types of stainless steel materials. Other special materials are available upon special request.

Dharmi Engineers Jacketed P.T.F.E. seated Ball Valves gives Zero Leakage, Tight Shut-Off and Low Torque with easy smooth operation at temperature ranging from -20⁰ C. to +220⁰ C. Electro-Polished, Buff Finish & Ultra clean valve also provided for Food & Pharmaceutical Industries on request.

VALVE OPERATION:

Dharmi Engineers Ball Valves are generally supplied with manual hand lever or gear unit operated, depending on valve size. Dharmi Engineers also offering Ball Valves with either Pneumatic or Electrical actuator operated for automation.

WIDE RANGE OF BODY SEAT, SEAL & PACKING:

Dharmi Engineers 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.

Salient Features:

• High Performance Ball Valve
• Longer Smooth Life
• Positive Shut off
• Quick in Action
• No Lubrication
• Compact Design
• Low Pressure Drop
• Simplicity
• Heating / Cooling Jackets
• Wide selection of Different Jacket Material

Design & Testing International Standard:

Valve Design                                     : BS 5351 / ANSI B 16.34 / API 6D

Pressure Testing                               : BS 6755 Part II / API 598 / API 6D

Leakage Class                                  : Class VI (Zero Leakage)

Face to Face                                     : As Per ANSI B 16.10

Flange Drilling                                   : ANSI B 16.5 / BS 10 Table / DIN / IS / JIS Std.

Size Range                                        : ½” x 1” To 6” x 8”

Material of Construction:

Body / Insert

☼ Cast Carbon Steel to ASTM A 216 GR. WCB

☼ Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M

Ball

☼ Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M

☼ Hast Alloy B / C

☼ ASTM A 351 GR. CN 7M (Alloy 20)

Stem

☼ AISI 410 (S.S. 410 – 13% Cr. Steel)

☼ AISI 304 (S.S. 304)

☼ AISI 316 (S.S. 316)

☼ AISI 304L (S.S. 304L)

☼ AISI 316L (S.S. 316L)

☼ Hast Alloy B / C

☼ Alloy 20

Ball Seat / Gland Seal / Stem Seal

☼ P.T.F.E. – Virgin

☼ P.T.F.E. – Glass Filled

☼ P.T.F.E. – Carbon Filled

☼ Grafoil

Jacket Material

☼ M.S.

☼ S.S. 304

☼ S.S. 316

☼ S.S. 304L

☼ S.S. 316L