Flow Systems, Inc.
13650 T.I. Boulevard, Suite 106 • Dallas, TX 75243 • U.S.A. • Phone: 972-644-4395, 800-956-8447 • Fax: 972-644-4616
Contro B/C Series Materials of Construction 
[ Standard Design Features ] [ Materials of Construction ][ Technical Data ] [ Dimensions ] [How-To-Order ]
[Contro Series Ball Valves Table of Contents]
 
 
Def. 
No.
No. 
Req'd.
Description Material 
BC
Material 
LC
1
8
Hex. Nut SAE Grade 2 Carbon Steel (See note 4,7) 18-8 Stainless Steel (see note 7)
2
2
Seat See optional seat materials
 
3
2
Stem Seal Reinforced PTFE (see note 5) Reinforced PTFE (see note 5)
4
1
Handle Nut SAE Grade 2 Carbon Steel SAE Grade 2 Carbon Steel
5
1
Stem 316 Stainless Steel AISI 316 Stainless Steel
6
1
Star Lockwasher AISI C1045 Carbon Steel AISI C1045 Carbon Steel
7
1
Travel Stop AISI C1010 Carbon Steel (see note 6) AISI C1010 Carbon Steel (see note 6)
8
2
Spring Washer AISI 302 Stainless Steel AISI 302 Stainless Steel
9
1
Handle AISI C1010 Carbon Steel AISI C1010 Carbon Steel
10
1
Gland Ring AISI 303 Stainless Steel AISI 303 Stainless Steel
11
4
Stud ASTM 193 Grade B7 Carbon Steel (see note 1,4) 18-8 Stainless Steel (see note 1)
12
1
Body AISI C1026 Carbon Steel (see note 2) ASTM A351 CF3M 316L Stainless Steel
13
1
Ball AISI 316 Stainless Steel AISI 316 Stainless Steel
14
2
End Piece ASTM A216 Grade WCB Carbon Steel ASTM A351 CF3M 316L Stainless Steel
15
8
Split Lockwasher AISI C1045 Carbon Steel (see note 2,7) 18-8 Stainless Steel (see note 2,7)
16
1
Stem Nut SAE Grade 2 Carbon Steel (see note 4) 18-8 Stainless Steel (see note 4)
17
1
Grounding Spring AISI 302 Stainless Steel 302 Stainless Steel
18
2
Seal, End Piece Grafoil (see note 8) Grafoil (see note 8)
 
Note 1: ¼" thru 2½" standard port and ¼" thru 2" full port, has hex. hd. cap screw, SAE Gr. 5.
Note 2: ¼" thru 2" standard port and ¼" thru 1½" full port has star lockwasher on stainless steeel valves, ¼" - 2" carbon steel not required.
Note 3: ASTM A216 Gr. WCB for ¼" thru 2" standard port and ½" thru 1½" full port.
Note 4: Stainless steel 18-8 used on FS models.
Note 5: Additional flexible grahite seal used on FS models.
Note 6: Not available on 3" size.
Note 7: Quantity of 4 required when cap screws are used.
Note 8: Available in FS models only.
Note 9" Sizes 6" - 8" consult factory.
 

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FLOW SYSTEMS
13650 T.I. Boulevard, Suite 106 • Dallas, TX 75243 • U.S.A. • Phone: 972-644-4395, 800-956-8447 • Fax: 972-644-4616


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