Bolted Bonnet ?Non-Rising Stem ?Resilient Wedge ?Flanged Ends CONFORMS TO DIN 3202
Freezing Weather Precaution ?Subsequent to testing a piping system, valves should be in an open position to allow complete drainage.
PART
SPECIFICATION
1.
Valve Body
Ductile Iron QT450-12
2.
Resilient Wedge
Ductile Iron QT450-12/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.
Operating Nut Washer
Carbon Steel Zinc Plated
13
Operating Nut Screw
Carbon Steel Zinc Plated 45#
14.
Handwheel
Carbon steel ST12
15.
16.
Stem Seal Bushing
Brass H62
DN
L
n-φd
D
φ
d
b
t
H
H1
G
F4
F5
50
10
150
250
4-φ19
165
125
98
19
3
335
253
φ200
16
65
170
270
185
145
118
376
284
80
180
280
200
160
133
420
320
φ250
8-φ19
100
190
300
220
153
453
343
φ288
325
210
183
533
408
φ350
350
8-φ23
285
240
209
567
425
230
400
8φ23
340
295
264
20
700
530
φ380
12-φ23
450
319
22
821
621
φ450
12-φ28
355
500
455
367
24.5
4
930
703
φ500
410
290
550
16φ23
16-φ28
520
460
470
429
26.5
1097
841
310
600
16-φ31
580
515
525
480
28
1199
922
330
650
20-φ29
640
565
585
30
1342
1022
20-φ31
715
620
609
31.5
1535
1177
20-φ35
390
800
20-φ32
840
725
682
36
5
1799
1379