Diesel Engine Controls

CV42-M20 — Pressure Regulator
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CV42-M20 Valve

CV42-M20 Valve symbol

A screw-in, cartridge-style, pressure regulator for use in diesel engine applications, such as
variable flow pumps, fuel and oil controls, and SCR/EGR emission and exhaust controls.

The CV42-M20 allows flow passage from 1 to 2, while normally blocking oil flow in the opposite
direction. The cartridge has a fully guided check which is spring-biased closed until sufficient
pressure is applied at 1 to open to 2.

• Compatible with diesel fuel types 1 and 2.
• Corrosion-resistant plating.
• Stainless steel options available - consult factory.
• Hardened seat for long life and low leakage.
• Optional bias springs for back-pressure application flexibility.
• ISO 7789 cavity.

Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: Up to 378 lpm (100 gpm)
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. at 240 bar (3500 psi)
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with fluorocarbon seals;
   -54° to 107°C (-65° to 225°F) with polyurethane seals
Filtration: Compatible with ISO Classification 19 (25 µm), NAS classification
Fluids: For use with common diesel fluids
Installation: No restrictions; See page 9.020.1
Cavity: VC42-M2; See page 9.142.1_2w
Cavity Tool: CT42-M2xx; See page 8.600.1
Seal Kit: SK42-M2x-T; See page 8.650.1


CV42-M20 Valve Performance Chart


CV42-M20 Valve Dimensions


Cartridge:Weight: 0.62 kg. (1.36 lbs.) Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N O-rings and polyester elastomer back-ups standard.

Standard Ported Body:
Weight: 1.63 kg. (3.60 lbs.) Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.
See page 8.042.1_2w.

CV42-M20 Ordering Chart

More Diesel Control Products.
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