BVB - Manifold Valves for VKG/VKM Flow Meters

The KOBOLD BVB is a manifold valve block that consolidates up to eight VKG or VKM variable-area flowmeters into a single integrated unit for centralized flow measurement and distribution in lubricating oil circuits. Available in single through 8-fold configurations, the BVB is rated for a maximum combined flow of 6.3 GPM, a maximum pressure of 930 PSI, and a maximum temperature of 212°F (100°C), with 1/2" NPT connections and it is manufactured in the United States.

How the BVB Manifold Valve Centralizes Multi-Point Flow Monitoring

The BVB manifold valve system replaces scattered individual flowmeter installations with one integrated valve block, eliminating extensive piping and reducing leak points in multi-point lubrication systems. Each of up to eight valve positions provides individual flow control, so a single accessible location serves an entire group of lubrication circuits.

Traditional multi-point lubrication monitoring requires separate piping and mounting for every measurement point. Consolidating those points into one manifold simplifies installation and improves operator efficiency, an approach that proves valuable in machinery installations where space constraints exist or where centralized monitoring is preferred.

BVB Manifold Valve Technical Specifications

According to specifications, the BVB valve block is rated for a maximum combined flow of 6.3 GPM per complete valve block, a maximum pressure of 930 PSI, and a maximum temperature of 212°F (100°C), with any limitations of the mounted flowmeters also observed. Process connections are 1/2" NPT.

• Manifold configurations: single through 8-fold valve positions
• Maximum combined flow: 6.3 GPM per complete valve block
• Maximum pressure: 930 PSI
• Maximum temperature: 212°F (100°C)
• Process connections: 1/2" NPT inlet and flowmeter mounting
• Wetted parts: anodized aluminum housing, NBR seal, brass spindle guide, 303 stainless steel spindle
• Pressure drop (Kv value, with water): 7.3 PSI at 2.5 GPM; 14.5 PSI at 3.7 GPM; 29.0 PSI at 5.3 GPM

Which Flowmeters Work with the BVB Manifold?

The BVB accommodates both KOBOLD VKG glass tube rotameters and VKM all-metal flowmeters. Order the manifold with valves and flowmeters mounted (BVB-4101 through BVB-4108, single through 8-fold) or as the valve block only (BVB-5101 through BVB-5108); the "..Z" designation applies to VKM series or VKG-9000 series flowmeters.

When ordering, specify whether the piping inlet connection is to be mounted on the right or left side of the valve block, and specify the desired VKG or VKM flowmeter model for mounting. Flowmeter pricing is not included in BVB pricing.

Installation and System Requirements

A BVB system requires a supply pump with 20–30% overcapacity beyond total branch flow requirements so each branch receives adequate flow. To protect the instruments, that overcapacity must return to the media supply tank through a pressure limiting regulator; KOBOLD recommends a setting between 100 PSI and 235 PSIG.

The pre-assembled manifold arrives ready for flowmeter installation, requiring only connection of a single supply line to the inlet port and individual discharge lines to lubrication points, reducing labor hours and system downtime. Per the operating manual, avoid water hammer caused by very quick shut-off, check that the connection threads are fully sealed after installation, and avoid mounting flow switches in magnetic fields.

Individual Valve Control and Modular Expansion

Each manifold position features independent valve control, allowing technicians to isolate specific flowmeter branches for maintenance without disrupting lubrication flow to other circuits. The modular design supports progressive expansion from single flowmeter installations through eight-point measurement systems as monitoring requirements grow.

Made in USA and BABA Compliance

The BVB manifold valve system is manufactured in the United States, and Build America, Buy America (BABA) compliant models are available, meeting federal procurement requirements for government facilities and public infrastructure projects. Industrial facilities rely on BVB systems with immediate availability from U.S. inventory and comprehensive technical support.

Variable Area Flow Technology and Manifolds

Learn more about variable area and rotameter flow technology by visiting our in-depth Article on Variable Area and Rotameter Flow Technology.

Learn more about manifolds for variable area and rotameter flow technology by visiting our in-depth Article on Manifolds for Rotameters.

Common Questions about ADI-1 - BVB - Manifold Valves for VKG/VKM Flow Meters