NLB Corporation

High Pressure Water Jetting, Water Blasting, High Pressure Pumps

Pump & System Components / By-Pass Valves

By-Pass Valves

NLB by-pass valves let you adjust the pressure on your pump unit with a simple turn of the T-bar handle… much like opening and closing a faucet. They are hydraulically cushioned for smooth pressure adjustment and field repairable. Models are available to handle all common operating pressures. The housing and all major components are precision machined of rugged stainless steel. Air-assisted models (part numbers with an A) are also available. We also offer simple conversion kits that allow older pump units to accept newer by-pass valves.

Features and Benefits:

  • Pressures: 10,000 psi, 20,000 psi, 24,000 psi, or 40,000 psi (700 bar, 1,400 bar, 1,650 bar, or 2,800 bar)
  • Flows up to 65 gpm (246 lpm)
  • Housing and major components precision-machined of stainless steel
  • Add to older pump units with a simple conversion kit

BV10-400: DM11267 Conversion Kit
BV10-650: DM12744 Conversion Kit
BV20-260: DM12699 Conversion Kit

Part NumberMax. PressureMax. FlowInlet ConnectionOutlet ConnectionRebuild Kit 
BV10-40010,000 psi
(700 bar)		40 gpm
(151 lpm)		1" NPT1/2" NPTBV11316

$1 Get a Quote

BV10-65010,000 psi
(700 bar)		65 gpm
(246 lpm)		1" NPT1" NPTBV12635

$1 Get a Quote

BV10-650A10,000 psi
(700 bar)		65 gpm
(246 lpm)		1" NPT1" NPTBV12635

$1 Get a Quote

BV20-26020,000 psi
(1,400 bar)		26 gpm
(98 lpm)		1" MP1/2" NPTBV11317

$1 Get a Quote

BV24-35024,000 psi
(1,650 bar)		35 gpm
(132 lpm)		1" MP1/2" NPTBV18102

$1 Get a Quote

BV24-350A24,000 psi
(1,650 bar)		35 gpm
(132 lpm)		1" MP1/2" NPTBV18102

$1 Get a Quote

BV40-01040,000
(2,800 bar)		10 gpm
(38 lpm)		1-1/8"-12 HPM1/2" NPTBV2180

$1 Get a Quote

BV40-26040,000
(2,800 bar)		25 gpm
(95 lpm)		1-5/6-12UN-2A M1" NPT FBV37864

$1 Get a Quote

BV40-260A40,000
(2,800 bar)		25 gpm
(95 lpm)		1-5/6-12UN-2A M1" NPT FBV37866

$1 Get a Quote

BV36-11540,000
(2,800 bar)		15 gpm
(57 lpm)		1-1/8"-12 HPM1/2" NPTBV2180

$1 Get a Quote

Additional Information

Max. Pressure

10,000 psi (690 bar), 20,000 psi (1,380 bar), 24,000 psi (1,656 bar), 40,000 (2,760 bar)
Max. Flow

40 gpm (151 lpm), 65 gpm (246 lpm), 25 gpm (95 lpm), 35 gpm (132 lpm), 10 gpm (38 lpm), 15 gpm (57 lpm), 26 gpm (98 lpm)
Inlet Connection

1″ NPT, 1″ MP, 1-1/8″-12 HPM, 1-1/8″-12 HPM, 1-5/6-12UN-2A M
Outlet Connection

1/2″ NPT, 1″ NPT, 1″ NPT F
Rebuild Kit

BV11316, BV12635, BV11317, BV18102, BV2180, BV37864