Bolted Bonnet · Non-Rising Stem · Resilient Wedge · Flanged Ends CONFORMS TO BS5163
PRECAUTION: Subsequent to testing a piping system, gate valve should be in an open position to allow complete drainage.
PART
SPECIFICATION
1.
Valve Body
Ductile Iron QT450-10
2.
Resilient Wedge
Ductile Iron QT450-10/EPDM
3.
Wedge Nut
Bronze ZQSn5-5-5
4.
Stem
Stainless Steel 1Cr13
5.
Bonnet Gasket
EPDM
6.
Bonnet Screw
Alloy Steel ASTM 45#
7.
Bonnet
8.
Stem Primary O-Ring
9.
Stem Thrust Washer
Nylon 1010
10.
Gland Seal O-Ring
11.
Stem Ring Wiper
12.
Bolt
Carbon Steel Zinc Plated
13
Square Operating Nut
Cast Iron HT250
13A
Handwheel (Optional)
14.
15.
Stem Seal Bushing
Brass H62
DN
L
n-φd
D
φ
d
b
t
H
H1
50
10
178
4-φ19
165
125
98
19
3
410
253
16
65
190
185
145
118
451
284
80
203
8-φ19
200
160
133
498
320
100
229
220
180
153
531
343
254
250
210
183
618
408
150
267
285
240
209
653
425
292
340
295
264
20
785
530
12-φ23
330
400
350
319
22
911
621
12-φ28
355
300
356
455
367
24.5
4
1020
703
381
16-φ23
520
460
429
26.5
1097
841
16-φ28
470
406
580
515
480
28
1199
922
16-φ31
525
450
432
20-φ29
640
565
550
30
1342
1022
20-φ31
585
500
457
715
620
609
31.5
1535
1177
20-φ35
650
600
508
20-φ32
840
725
682
36
5
1799
1379