• NPT Threaded Steel 3-Way Selector Hydraulic Diverter Ball Valve, 1/4" - 2"
NPT, Steel, Buna, "L port"
SKU Body Material Port / O-ring Port Size Threads US Model EU Model
13221 Steel L - NBR 1/4" 1/4" NPT BK3-4-NPT-112A-L BK3-DN6-1/4” NPT
41291 Steel L - NBR 3/8" 3/8" NPT BK3-6-NPT-112A-L BK3-DN10-3/8” NPT
41292 Steel L - NBR 1/2" 1/2" NPT BK3-8-NPT-112A-L BK3-DN13-1/2” NPT
15425 Steel L - NBR 3/4" 3/4" NPT BK3-12-NPT-112A-L BK3-DN20-3/4” NPT
15426 Steel L - NBR 1" 1" NPT BK3-16-NPT-112A-L BK3-DN25-1” NPT
35517 Steel L - NBR 1-1/4" 1-1/4" NPT BK3-20-NPT-112A-L BK3-DN32-1 1/4” NPT
38031 Steel L - NBR 1-1/2" 1-1/2" NPT BK3-24-NPT-112A-L BK3-DN40-1 1/2” NPT
35519 Steel L - NBR 2" 2" NPT BK3-32-NPT-112A-L BK3-DN50-2” NPT


NPT, Steel, Viton "L port"
SKU Body Material Port / O-ring Port Size Threads US Model EU Model
11333 Steel L - FPM 1/4" 1/4" NPT BK3-4-NPT-1128-L BK3-DN6-1/4” NPT
11607 Steel L - FPM 3/8" 3/8" NPT BK3-6-NPT-1128-L BK3-DN10-3/8” NPT
11608 Steel L - FPM 1/2" 1/2" NPT BK3-8-NPT-1128-L BK3-DN13-1/2” NPT
11609 Steel L - FPM 3/4" 3/4" NPT BK3-12-NPT-1128-L BK3-DN20-3/4” NPT
11610 Steel L - FPM 1" 1" NPT BK3-16-NPT-1128-L BK3-DN25-1” NPT
36538 Steel L - FPM 1-1/4" 1-1/4" NPT BK3-20-NPT-1128-L BK3-DN32-1 1/4” NPT
38033 Steel L - FPM 1-1/2" 1-1/2" NPT BK3-24-NPT-1128-L BK3-DN40-1 1/2” NPT
38034 Steel L - FPM 2" 2" NPT BK3-32-NPT-1128-L BK3-DN50-2” NPT


NPT, Steel, Buna, "T port"
SKU Body Material Port / O-ring Port Size Threads US Model EU Model
38049 Steel T - NBR 1/4" 1/4" NPT BK3-4-NPT-112A-T BK3-DN6-1/4” NPT
38050 Steel T - NBR 3/8" 3/8" NPT BK3-6-NPT-112A-T BK3-DN10-3/8” NPT
17198 Steel T - NBR 1/2" 1/2" NPT BK3-8-NPT-112A-T BK3-DN13-1/2” NPT
38051 Steel T - NBR 3/4" 3/4" NPT BK3-12-NPT-112A-T BK3-DN20-3/4” NPT
22926 Steel T - NBR 1" 1" NPT BK3-16-NPT-112A-T BK3-DN25-1” NPT
38052 Steel T - NBR 1-1/4" 1-1/4" NPT BK3-20-NPT-112A-T BK3-DN32-1 1/4” NPT
38053 Steel T - NBR 1-1/2" 1-1/2" NPT BK3-24-NPT-112A-T BK3-DN40-1 1/2” NPT
38054 Steel T - NBR 2" 2" NPT BK3-32-NPT-112A-T BK3-DN50-2” NPT


NPT, Steel, Viton "T port"
SKU Body Material Port / O-ring Port Size Threads US Model EU Model
25912 Steel T - FPM 1/4" 1/4" NPT BK3-4-NPT-1128-T BK3-DN6-1/4” NPT
25913 Steel T - FPM 3/8" 3/8" NPT BK3-6-NPT-1128-T BK3-DN10-3/8” NPT
25914 Steel T - FPM 1/2" 1/2" NPT BK3-8-NPT-1128-T BK3-DN13-1/2” NPT
25915 Steel T - FPM 3/4" 3/4" NPT BK3-12-NPT-1128-T BK3-DN20-3/4” NPT
25916 Steel T - FPM 1" 1" NPT BK3-16-NPT-1128-T BK3-DN25-1” NPT
38055 Steel T - FPM 1-1/4" 1-1/4" NPT BK3-20-NPT-1128-T BK3-DN32-1 1/4” NPT
38056 Steel T - FPM 1-1/2" 1-1/2" NPT BK3-24-NPT-1128-T BK3-DN40-1 1/2” NPT
38057 Steel T - FPM 2" 2" NPT BK3-32-NPT-1128-T BK3-DN50-2” NPT

Catalog Page with Drawings and Dimensions:
BK3-THD-STL.pdf

CAD Drawings STEP format:
Visit MHA Zentgraf Website

Full MHA Zentgraf Catalog (EU version):
MHA_ZENTRGAF_Catalog.pdf

7250 psi 3-way selector ball valve for high pressure fluid power requirements and other hydraulic applications. Steel body with lever handle and female NPT threaded connections.

  • L-bore, 90° Turn or T-bore, 90° Turn
  • FNPT Threaded Connections: 
    ANSI B1.20.1 NPT Female Thread
  • 4500 - 7250 psi Pressure Rating
  • Plated Steel Housing
  • Delrin (POM) Seats
  • BUNA (NBR) or Viton (FPM) Seals
  • Lever Handle Operator

1/4", 3/8", and 1/2" sizes rated for 7250 psi. 
3/4" and 1" sizes rated for 4500 psi.
1-1/4", 1-1/2" and 2" sizes rated for 5000 psi.

Note: Pressure inlet only permitted at center port 2. See BK-3S for versions capable of pressure inlet at all ports. All versions are readily available. Contact Valves-USA for a price quote for items showing $0.00. Options include stainless-steel internals - contact Valves-USA

NPT Threaded Steel 3-Way Selector Hydraulic Diverter Ball Valve, 1/4" - 2"

  • Brand: MHA ZENTGRAF
  • Product Code: 3BV-STL-NPT
  • SKU: 13221
  • Availability: In Stock
  • $62.46


Available Options


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