Donkin Series 555 Cast Iron Gate Valves

Flanged Gate Valve to GIS/V7:Part 1 PN2

Flanged Gate Valve to GIS/V7:Part 1

The large diameter Series 555 Softseal Valve is a double-faced, resilient seat, internal screw, clear bore wedge gate valve. It is designed primarily for the isolation of natural gas and manufactured gas. Manufactured and approved to specification GIS/V7:Part 1. PN2

Variant 555/100-001
Connection: Flanged
Material: Cast Iron
DN: DN350 - DN800
PN: PN 2
Closing direction: Clockwise to Close

Features

  • Maximum Working Pressure: 2 Bar (29 PSIG)
  • Temperature Range: -10°C to +60°C
  • Soft seal, positive shut off
  • Full double block and bleed with pressure relieving plug
  • Clear bore for under pressure drilling operations
  • Metal to metal secondary seal
  • Maintenance free
  • “Flange feet” to aid installation and stockholding
  • No lubrication required
  • Double ‘O’ Ring stem seal
  • Lifting lugs on all sizes
  • Suitable for above and below ground use
  • Embodied carbon data available upon request.
  • Options:
    • Pressure point/by-pass bosses cast into the valve as standard. These can be drilled and plugged at our factory if required
    • 4 Bar version available on certain sizes
    • Alternative flange drilling
    • Gear box
    • Electric/pneumatic actuation
    • Stainless steel spindle
    • DN400, 450 and 600 available as 4 bar on request
    • Stainless spindle and viton o-ring with CI thrust collar for Biogas

Reference nos. and dimensions:

Close Download package
AVK ref. no. DN
mm
H3
mm
H
mm
HF
mm
BR
DN
BP
DN
L
mm
Turns
to open
Theoretical
weight/kg
3D drawings Enquiry
555-350-00-010 350 997 730 793 RP0.75 RP1.5 381 32 270
555-400-00-010 400 1158 848 911 RP0.75 RP1.5 406 36 301
555-450-00-010 450 1257 930 993 RP0.75 RP1.5 432 40 340
555-500-00-010 500 1318 1015 1078 RP0.75 RP1.5 457 45 480
555-600-00-010 600 1601 1173 1236 RP0.75 RP2 508 52 745
555-800-00-01010050 800 2271 1520 1706 RP1 N/A 660 32 1241

Downloads

Datasheet (PDF)
Certificate(s)
Installation, Operation & Maintenance
Price list

Components

1. Body and bonnet Cast iron GJL-250
2. Stem Steel 11SMn30 (EN1A)
3. Gate Cast iron GJL-250
4. Stem/seat seal NBR
5. Pressure relief plug Steel 11SMn30 (EN1A)
6. Bonnet gasket CNAF fibres
7. Fasteners Steel 8.8

Test/Approvals

  • Tested according to EN12266-1

Standards

  • Designed according to GIS/V7 Part 1
  • Face to face according to EN 558 table 3 basic series 3
  • Standard flange drilling to EN1092 (ISO 7005-2), PN 16
0 Files In the package
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