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Series 77 & 78 Installation, Operating & Maintenance
78 Series – ½” ~ 1” (DN 12~DN25)
Item
Description
Material Specification
Qty.
1
Body
G-X6CrNiMo-18-10 (1.4408),
S.St ASTM A351 CF8M, C.St A216 WCB,
ASTM A494 CW12MW, ASTM B574,
ASTM A351 CN7M, ASTM A494 M35-1,
ASTM A351 CK3MCuN, ASTM A351
CD4MCU, ASTM A995 UNS J93388
1
2
Plug
G-X6CrNiMo-18-10 (1.4408),
S.St ASTM A351 CF8M, C.St A216 WCB,
ASTM A494 CW12MW, ASTM B574,
ASTM A351 CN7M, ASTM A494 M35-1,
ASTM A351 CK3MCuN, ASTM A351
CD4MCU, ASTM A995 UNS J93388
1
3
Ball
G-X6CrNiMo-18-10 (1.4408),
S.St ASTM A351 CF8M, C.St A216 WCB,
ASTM A494 CW12MW, ASTM B574,
ASTM A351 CN7M, ASTM A494 M35-1,
ASTM A351 CK3MCuN, ASTM A351
CD4MCU, ASTM A995 UNS J93388
1
4
Stem
G-X6CrNiMo-18-10 (1.4408),
S.St ASTM A351 CF8M, C.St A216 WCB,
ASTM A494 CW12MW, ASTM B574,
ASTM A351 CN7M, ASTM A494 M35-1,
ASTM A351 CK3MCuN, ASTM A351
CD4MCU, ASTM A995 UNS J93388
1
5
Seat
PTFE, RPTFE, CF PTFE, PEEK, TFM,
UHMWPE, VESPEL, PVDF, DELRIN, PCTFE
2
6
Body Seal
PTFE, RPTFE, TFM, UHMWPE, Graphite,
Impregnated Graphite
1
7
Stem Thrust Seal
PEEK, CF PTFE
1
8
Stop Pin
S.St. 303 ASTM A582
1
9
Stem Packing
CF PTFE, TFM
1
10
Follower
S.St. 316L ASTM B783
1-2
11
Disc Spring
S.St. 17-7PH ASTM A693
2
12
Stem Nut
S.St. 316 ASTM A194
1-2
13
Tab Washer
S.St. 304 ASTM A164
1
14
Handle
S.St. 430 ASTM A240, C.St. ST37 zinc plated
1
15
Serrated Washer
S.St. 410 ASTM AISI 410
1
16
Sleeve
Vinyl Plastisol
1
15
1
10
2
11
11
3
12
12
4
13
5
5
14
6
7
7
16
9
8
