Product Core Brief
- Model: A413188
- Brand: Metso (Neles / Valmet Field Instrument Pneumatic Accessories)
- Series: Service replacement bowl assembly for A413xx medium flow filter regulators
- Core Function: Capture condensed water and compressor oil separated by the A413125 coalescing filter cartridge, with transparent sight glass for visual liquid level monitoring before manual drain operation.
- Product Type: Complete disposable service bowl assembly including sight glass vessel and EPDM sealing gasket
- Key Specs: Transparent polycarbonate sight glass | Integrated manual drain port | EPDM high-temperature seal for 1.4–10 bar instrument air
- Condition: New Original (New Surplus); Active OEM production spare with continuous factory supply availability.
Key Technical Specifications
- Vessel material: Impact-resistant transparent polycarbonate sight glass bowl
- Seal material: EPDM rubber O-ring gasket, chemical resistant to compressor lubricants
- Operating pressure range: 1.4 bar minimum up to 10 bar maximum instrument air supply
- Operating ambient temperature: -20°C to +70°C; storage range -40°C to +85°C
- Compatible regulator bodies: A413139 and A413240 medium flow filter regulator housings only
- Integrated feature: Bottom threaded manual drain port for weekly condensate purging
- Max liquid holding volume: 35mL condensate storage capacity before liquid carryover risk occurs
- Compliance standard: ATEX non-electrical pneumatic component certification for Zone 1/2 hazardous process environments
- Service replacement trigger: Replace entire assembly if sight glass cracks, gasket hardens, or drain port threads show corrosion
- Pressure withstand rating: 12 bar burst pressure safety margin above rated operating max
Product Introduction
Metso is the factory standard replacement bowl assembly built to pair with medium flow Metso filter regulators installed alongside ND9103HX intelligent valve positioners. The clear polycarbonate wall lets maintenance staff spot accumulated condensate without full disassembly during routine field inspections.
Its molded EPDM gasket eliminates air leakage at the bowl-to-regulator joint; degraded aftermarket gaskets create pressure loss that slows valve stroke response and introduces process control variability. The unit ships pre-assembled with the matching seal to cut field service time during scheduled instrument maintenance rounds.
Firmware/Software Versions & Upgrade Notes
This is a fully mechanical pneumatic spare component with no embedded electronics, microcontrollers, or digital firmware. No configuration software, flash updates, parameter mapping, or digital communication setup applies to the assembly. All compatibility rules rely solely on physical dimensional matching with target regulator housings.
Frequently Asked Questions
- Can I remove and replace this bowl assembly while the valve instrument air supply stays pressurized?Shut off and fully vent upstream instrument air pressure before detaching the bowl. Pressurized bowl removal releases sudden air surges that flush accumulated oil and water downstream into the ND9xxx positioner pilot valve, causing sticking or permanent positioning drift.
- Are aftermarket plastic bowl assemblies a cost-effective long-term substitute for this OEM part?Generic polycarbonate bowls use lower grade resin that cracks under rapid temperature swings common in pulp mill and chemical plant environments. Thin aftermarket gaskets degrade within 2–3 months, creating constant air leakage that increases plant compressed air consumption and disrupts closed-loop valve control. New Surplus OEM stock avoids these recurring service costs.
- Does this assembly fit all Metso filter regulator product lines?This bowl only fits A413139 and A413240 medium flow regulator bodies. Mini A413331 and high-flow A413337 regulators require separate unique bowl part numbers; cross-installation creates misalignment and permanent air leakage at the joint seal.
- What warranty terms apply to New Surplus OEM bowls versus unbranded aftermarket alternatives?Our New Surplus OEM inventory carries a 12-month shelf life warranty against manufacturing defects in the polycarbonate vessel and EPDM seal. Generic aftermarket bowls ship with zero manufacturer-backed coverage; cracked sight glass or leaking gaskets cannot be replaced under any vendor guarantee once field installed.
- Why does OEM New Surplus bowl hardware carry a higher upfront price than generic plastic alternatives?New Surplus OEM assemblies use factory-tested thick-wall polycarbonate and heat-stabilized EPDM gaskets validated through Metso environmental cycling testing. Aftermarket bowls cut material costs by reducing wall thickness and using unformulated rubber seals; premature cracking and air leaks create unplanned instrument downtime that far exceeds the initial component price gap.
- How often should maintenance crews drain condensate from the sight glass bowl?Complete a full drain once every 7 days under standard plant air quality. Increase drain frequency to every 2–3 days during humid summer operating conditions to prevent liquid carryover past the A413125 filter cartridge.
- Can I reuse the original EPDM gasket when swapping to a new bowl?Discard and replace the old gasket with the pre-installed seal included on each new unit. Used gaskets develop permanent compression set after repeated bowl removals, which creates slow air leaks that degrade regulated instrument air pressure stability for connected control valves.
