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Diesel Engine Controls
CV12-20 — Pressure Regulator
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A screw-in, cartridge-style, pressure regulator for use as a blocking or load-holding
device for diesel engine applications, such as variable flow pumps, fuel and oil
controls, and SCR/EGR emission and exhaust controls.
The CV12-20 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 option - consult factory
• Hardened seat for long life and low leakage.
• Optional bias springs for back-pressure application flexibility.
• Fully guided check assembly.
• Cost-effective cavity.
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 420 bar (6090 psi)
Flow: Up to 95 lpm (25 gpm)
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. at 240 bar (3500 psi)
Crack Pressure Defined: Gauge psi evident at 1 at 16.4 cc/minute (1 cu. in./minute) attanined
Standard Bias Springs at Crack: 0.34 bar (5 psi); 1.7 bar (25 psi); 4.1 bar (60 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 (-56° to 225°F) with polyurethane or urethane seals
Filtration: Compatible with ISO Classification 19 (25 mµ), NAS classification
Fluids: For use with common diesel fluids.
Installation: No restrictions; See page 9.020.1
Cavity: VC12-2; See page 9.112.1_2w
Cavity Tool: CT12-2xx; See page 8.600.1
Seal Kit: SK12-2x-T; See page 8.650.1
Cartridge: Weight: 0.17 kg. (0.38 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-ups standard.
Standard Ported Body: Weight: 0.57 kg. (1.25 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar
(3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.012.1_2w.
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