MANN+HUMMEL ProVent 200 Oil separator 3931070550 #su

MANN+HUMMEL · ProVent Series · Crankcase Filtration · In stock

What Is the MANN+HUMMEL ProVent 200 Oil Separator?

The MANN+HUMMEL ProVent 200 Oil Separator (Part No. 3931070550) is a closed crankcase ventilation (CCV) filter engineered to separate oil mist from blow-by gases in medium-to-large diesel and gas engines. Manufactured by MANN+HUMMEL — a Germany-based global leader in filtration systems — it captures airborne oil droplets from the crankcase vent stream, returns the separated oil to the sump, and releases cleaned gas back to the intake or atmosphere. This reduces oil consumption, protects turbocharger components, and helps engines meet emission compliance targets.

In short: The ProVent 200 is a maintenance-friendly, high-efficiency oil mist separator for diesel and gas engines in the 50–250 kW range — keeping your intake system clean, your oil where it belongs, and your emissions within spec.

Key Features and What They Mean

1. High-Efficiency Coalescer Media

What it means: The ProVent 200 uses a depth-loading coalescer element that captures sub-micron oil droplets from high-velocity blow-by gas.
Why it matters: Unfiltered oil mist fouls turbocharger compressor wheels, intercoolers, and intake valves — reducing engine efficiency over time.
Result: Cleaner intake air, reduced carbon deposits, and extended service intervals for downstream components.

2. Integrated Pressure Regulation

What it means: A built-in pressure control valve maintains stable crankcase pressure across the engine's full operating range.
Why it matters: Excessive crankcase pressure can cause oil seal leaks and gasket failures; insufficient pressure reduces separation efficiency.
Result: Consistent oil separation performance from idle to full load, protecting seals and gaskets throughout the duty cycle.

3. Oil Return with Integrated Check Valve

What it means: Separated oil drains back to the sump via a dedicated port with a one-way check valve, preventing reverse flow.
Why it matters: Without a reliable return path, collected oil accumulates in the housing, eventually saturating the filter and bypassing to the intake.
Result: Hands-off oil recovery — no manual draining, no mess, and continuous recirculation of valuable lubricating oil.

4. Modular / Serviceable Design

What it means: The spin-on style replaceable filter element can be changed without removing the housing from the engine.
Why it matters: Quick, tool-free element replacement minimizes engine downtime during scheduled maintenance.
Result: Lower total cost of ownership and simpler PM (preventive maintenance) scheduling for fleet and stationary power applications.

Key Specifications

Typical Applications

• Diesel Generator Sets (Gen-Sets): Keeps intake and turbocharger free of oil fouling during extended standby and prime-power operation.
• Marine Propulsion & Auxiliary Engines: Prevents crankcase oil mist from contaminating engine room air and degrading turbocharger performance.
• Construction & Mining Equipment: Handles high-vibration, variable-load duty cycles common in excavators, bulldozers, and haul trucks.
• Agricultural Machinery: Protects turbocharged tractor and harvester engines operating in dusty, high-load field conditions.
• Rail Locomotives: Maintains emission compliance and intake cleanliness over long-haul, high-hour operation.
• Natural Gas Engines: Suitable for stationary gas compression and cogeneration (CHP) engines requiring closed CCV.
• On-Highway Trucks & Buses: Extends oil drain intervals and reduces visible exhaust smoke in heavy-duty diesel vehicles.

Frequently Asked Questions

"What does a ProVent 200 oil separator actually do?"

It separates airborne oil droplets from the engine's crankcase blow-by gas before that gas reaches the turbocharger or intake system. The separated oil drains back to the sump, while the cleaned gas is routed to the intake or vented. This prevents oil from fouling your turbo compressor wheel, intercooler, and intake valves — reducing carbon buildup and oil consumption over time.

"What engine size is the ProVent 200 designed for?"

MANN+HUMMEL specifies the ProVent 200 for diesel and gas engines in approximately the 50–250 kW power range, with a blow-by flow capacity up to 200 liters per minute. For engines outside this range, MANN+HUMMEL offers the smaller ProVent 100 and larger ProVent 400 / 800 models. If you are unsure about sizing, send your engine model and displacement to Moritta@KOEED.COM for a compatibility check.

"How often should I replace the ProVent 200 filter element?"

Replacement intervals depend on engine hours, load factor, oil type, and blow-by volume. As a general guideline, inspect the element every 500–1,000 operating hours and replace it when the pressure drop across the housing exceeds the manufacturer's recommended limit — typically visible as reduced separation efficiency or elevated crankcase pressure. For engines running high-sulfur fuel or extended oil drain intervals, plan for more frequent changes.

"Can the ProVent 200 be installed on a generator that runs continuously?"

Yes — the ProVent 200 is well suited for continuous-duty applications including prime-power generator sets and CHP gas engines. Its integrated pressure regulation valve maintains stable crankcase pressure across the full load range, and the closed-loop oil return means no manual intervention is needed during extended runs. Ensure the oil return line is routed with a continuous downward slope to the sump to prevent pooling.

"How do I know this ProVent 200 is genuine MANN+HUMMEL?"

KOEED sources this product directly from authorized supply channels. The housing and element carry MANN+HUMMEL factory markings including the part number 3931070550. After placing an order, we will send you detailed photos and, if requested, a video of the actual unit before shipping so you can verify the markings yourself. If you have any concerns, contact Moritta@KOEED.COM.

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