Ball valve, trunnion DBB two balls type
Pre     next

Ball valve, trunnion DBB two balls type

  • Description
  • Make an Inquiry

(double block and bleed valve) DBB ball valve can be three-piece or integral body body, flanged ends and butt-welded are available, Size 2" to 24", pressure 150Lb to 2500Lb.

Features:
1.Forged ball
2.Anti-fire safe design
3.Anti-static device
4.Free leakage of body Sealed construction
5.Low torque in operation
6.Double block&bleed(DBB)
7.Emergency sealing
8.Extension stem at your choice
9.Automatic body cavity relief
10.Various driving types: gear, lever, electric, hydraulic, pneumatic

Standards Compliance
Design and manufacture: ANSI B16.34, API 608, API 6D, BS5351
Face to face dimensions: ANSI B16.10, API 6D
Flanged connection: ANSI B16.5, ANSI B16.47
Butt welded: ANSI B16.25
Fie-safe: API 607, API 6FA
Test and inspection: API 598, API6D

Standard Material Specifications
Body: A105, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, A350 LF2, 1A(CD4MCu)
Cap: A105, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, A350 LF2, 1A(CD4MCu)
Ball: A105, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, A350 LF2, 1A(CD4MCu)
Stem: A105, A182 F304 A182 F316 A182 F304L A182 F316L, A182 F6a, A350 LF2, 1A(CD4MCu)
Seat: A105, A182 F304, A182 F316, A182 F304L, A182 F316L, A182 F6a, A350 LF2, 1A(CD4MCu)
Seat ring: PTFE/RPTFE/NYLON/PEEK
Fixed trunnion: A105, A182 F304, A182 F316, A182 F304L, A182 F316L,1A(CD4MCu)
O-ring: VITON, PTFE, NBR
Seat spring: 17-7PH/Inconel/304/316
Cover bolt: A193 B7, A193 B8, A193 B8M, A320 L7
Cover nut: A194 2H, A194 8, A194 8M, A194-4
Bearing: SF-1, 304SS/PTFE



Sign Up for Our Newsletter:

Copyright © WELCO VALVE - Flow control solution All Right Reserved.