In hydraulic systems, one size rarely fits all. The BOSS Hydraulics monoblock valve range is designed to strike a balance: robust, compact, and yet configurable enough to suit many mobile and industrial applications.

 

BOSS BM45 series monoblock valves feature:

• Nominal flow: 45 L/min
• Max P pressure: 250 bar, Max T Pressure 25 Bar
• Ports: P-T = ½″ BSPP, A-B = ⅜″ BSPP
• Units with 1-6 Spools with a range of spool options
• 3 Relief Valve Options
• High Pressure Carry Over Optional
• Spool Positional Options include;
  • • Detents Kits
    • Pneumatic and Electro-Pneumatic
    • MicroswitchesHigh

Why Choose BOSS Hydraulics?

1. Configurability / Modularity within Monoblock Form
   The BOSS Hydraulics range offers multiple spool counts, circuit types (parallel, series, tandem), and optional ports (power beyond) so you can tailor the system to suit your needs.
2. Built-in Safety & Check Circuits
   These monoblock valves typically come with an adjustable relief valve and load check valves by default, reducing the need for external add-ons.
3. Temperature / Viscosity Tolerance
   The BM45 series features fluid viscosity ranges (15–75 cSt) and options for seals that extend ambient/fluid temperature range.
4. Compactness & Reduced Leak Points
   The solid, monoblock body means fewer joints, fewer external seals, and less plumbing complexity — especially important in vibration-prone mobile environments.
5. Multiple Control Options
   Spools can be operated via manual levers, pneumatic or electro-pneumatic pilots, solenoids, hydraulic pilots, or remote cables.

Monoblock Top Tips from the BOSS

• Make sure your hydraulic fluid is clean — filtration is critical to protect internal spools and seals.
• Bleed and cycle carefully after installation to avoid internal entrapment.
• Torque mounting bolts evenly to avoid warp or stress in the body.
• Use the correct handle/operator kits to match spool type (spring-centre, detent, servo, etc.).
• Monitor hoses, tubes and fittings for signs of leakage
• Keep spares of common wear parts (seals, levers, rubber boots or solenoids if applicable) for easier maintenance.

 CLICK HERE to find out more or CONTACT US to speak to our Industrial Hydraulics team