Flowserve Valtek Mark Eight Control Valve - Manual (Page 2)

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Adjusting Screw
(Item No. 210)
Adjusting Screw Gasket
(Item No. 248)
Cylinder
(Item No. 202)
Spring Button
(Item No. 227)
Spring
(Item No. 229)
Actuator Stem Nut
(Item No. 348)
Actuator Stem Spacer
(Item No. 228)
Piston O-ring
(Item No. 271)
Piston
(Item No. 225)
Cylinder Retaining
Ring
(Item No. 256)
Actuator Stem
(Item No. 211)
Stroke Plate
(Item No. 213)
Yoke
(Item No. 201)
Yoke Clamp
(Item No. 76)
Body
(Item No. 1)
Seat Ring
(Item No. 20)
Seat Ring Gasket
(Item No. 55)
Half-ring
(Item No. 11)
End Flange
(Item No. 10)
Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended
function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide
variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The
purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation and maintenance of Flowserve products. The purchaser/user
should read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products
in connection with the specific application.
While the information and specifications presented in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or
as a guarantee of satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect
to this product. Because Flowserve is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without
notice. Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any of its worldwide operations or offices.
For more information about Flowserve, contact www.flowserve.com or call USA 972 443 6500
Regional Headquarters
1350 N. Mt. Springs Prkwy.
Springville, UT 84663
Phone 801 489 8611
Facsimile 801 489 3719
12 Tuas Avenue 20
Republic of Singapore 638824
Phone (65) 862 3332
Facsimile (65) 862 4940
Flowserve and Valtek are registered trademarks of Flowserve Corporation.
12, av. du Québec, B.P. 645
91965, Courtaboeuf Cedex,
France
Phone (33 1) 60 92 32 51
Facsimile (33 1) 60 92 32 99
Quick Response Centers
5114 Railroad Street
Deer Park, TX 77536 USA
Phone 281 479 9500
Facsimile 281 479 8511
104 Chelsea Parkway
Boothwyn, PA 19061 USA
Phone 610 497 8600
Facsimile 610 497 6680
1300 Parkway View Drive
Pittsburgh, PA 15205 USA
Phone 412 787 8803
Facsimile 412 787 1944
For more information, contact:
FCD VLAIM008-06 ©1999 Flowserve Corporation. Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611
Figure 2: Sectioned View of Standard Mark Eight Control Valve
NOTE: Item numbers correspond directly to the valve’s bill of material. Refer to the bill of material for specific part numbers.
Piston Stem O-ring
(Item No. 272)
Actuator Stem Bushings
(Item Nos. 253 & 254)
Actuator Stem O-ring
(Item No. 275)
Actuator Stem Bellows
(Item No. 247)
Yoke O-ring
(Item No. 274)
Stem Clamp
(Item No. 249)
Gland Flange
(Item No. 80)
Upper Stem Guide
(Item No. 87)
Upper Packing
(Item No. 88)
Bonnet Flange Stud
(Item No. 108)
Bonnet Flange Nut
(Item No. 114)
Bonnet Flange
(Item No. 70)
Packing Spacer
(Item No. 93)
Bonnet Gasket
(Item No. 58)
Lower Packing
(Item No. 88)
Lower Stem Guide
(Item No. 83)
Seat Retainer
(Item No. 30)
Plug
(Item No. 50)