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AS2638.2 LARGER DIAMETER BETTA RESILIENT SEATED GATE VALVE, FLANGED, PN16, CC or ACC
AS2638.2-2011, DN450~DN600
Larger diameter flanged gate valve to AS2638.2. For drinking water and neutral liquids to max. 40℃
ASZ42X1-16Q
Connection
Flanged
Material
Ductile Iron
DN
DN450~600
PN
PN16
Closing Direction
Clockwise to Close
   
Anti-Clockwise to Close

Test/Approvals:

Hydraulic test according to AS2638.2-2011
Seat: 1.1PN, Body: 1.5PN
Closing torque test to AS2638.2 Table5.1
AS2638.2 Registration No. MK25731
WaterMark Registration No. MK25731

Standards:

Designed and certified according to AS2638.2-2011
Face to face according to AS2638.2-2011
Flange drilling according to AS4087 Fig.B5/AS2129 Table D/E

Features:

  • Ductile iron grade of BS500-7 body and bonnet for high strength and impact resistance
  • Wedge fully vulcanized with drinking water approved EPDM rubber
  • Wedge and body guide rails ensure stable operation
  • Stainless steel 431 stem for high strength
  • O-ring stem seals replaceable under allowable working pressure
  • Straight through full bore
  • Fusion bonded epoxy coating to AS4158&4020, WRAS, AS, DIN approved
  • Body/bonnet bolts sealed with hot melt
  • DN450~600 with ISO top flange, eye lifting bolts and roller bearings providing low operating torques
  • Option of DN450~800 with bypass valve
  • All fasteners of S.S.316 for corrosion resistance

Components tree:

1 Body Ductile Iron BS500-7
2 Wedge Ductile Iron EPDM Encaps
3 Stem nut Aluminum Bronze C95210
4 Stem Stainless Steel 1Cr17Ni2(431)
5 Bonnet gasket Rubber EPDM
6 Bonnet bolt Stainless Steel 316(CF8M)
7 Bonnet Ductile Iron BS500-7
8 O-ring Rubber NBR
9 O-ring Rubber NBR
10 Roller bearing Steel 45#
11 Seal retainer Aluminum Bronze C95210
12 Gland Stainless Steel 316(CF8M)
13 Dust seal Rubber EPDM
14 O-ring Rubber NBR
15 O-ring Rubber NBR
16 Eyebolts Carbon Steel Zinc plated
17 Bypass valve Ductile Iron BS500-7
18 Fasteners Stainless Steel 316(CF8M)
19 Bypass pipe Ductile Iron BS500-7

Reference nos. and dimensions:

BETTA ref. no. DN
mm
L
mm
L1
mm
H
mm
Flange Drilling to AS4087 Fig.B5 & AS2129 Table D/E mm Bypass Valve Theoretical
Weight/Kg
D C G d N-ds
450ASZ42X1-16Q 450 432 - 1080 640 584 552 40 12-φ26 DN100 378
450ASZ42X1-16QL 650 545 484
500ASZ42X1-16Q 500 457 - 1180 705 641 609 40 16-φ26 DN100 520
500ASZ42X1-16QL 700 600 625
600ASZ42X1-16Q 600 508 - 1345 825 756 717 40 16-φ30 DN150 650
600ASZ42X1-16QL 786 800 832
700ASZ42X1-16QL 700 900 850 1685 910 845 809 40 20-φ30 DN150 1090
750ASZ42X1-16QL 750 950 875 1720 995 927 885 65 20-φ33 DN150 1490
800ASZ42X1-16QL 800 1000 900 1720 1060 984 942 65 20-φ36 DN150 1550

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