Industry-Verified Manufacturing Data (2026)

Reservoir / Pump Assembly

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Reservoir / Pump Assembly used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Reservoir / Pump Assembly is characterized by the integration of Reservoir Tank and Centrifugal Pump. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A combined unit consisting of a reservoir and pump that circulates refrigerant within a chiller system.

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Product Specifications

Technical details and manufacturing context for Reservoir / Pump Assembly

Definition
The Reservoir / Pump Assembly is a critical component of a Chiller Unit that integrates a storage reservoir for refrigerant with a circulation pump. It maintains proper refrigerant levels, ensures consistent flow to the evaporator and condenser, and helps manage pressure differentials throughout the cooling cycle.
Working Principle
The reservoir stores liquid refrigerant and provides a buffer for system volume changes. The pump draws refrigerant from the reservoir and circulates it through the chiller's heat exchange components (evaporator and condenser) at controlled pressures and flow rates to facilitate the refrigeration cycle.
Common Materials
Stainless steel, Cast iron, Copper alloys
Technical Parameters
  • Reservoir diameter and height dimensions (mm) Per Request
Components / BOM
  • Reservoir Tank
    Stores liquid refrigerant and provides volume compensation
    Material: Stainless steel
  • Centrifugal Pump
    Circulates refrigerant through the chiller system
    Material: Cast iron with bronze impeller
  • Inlet/Outlet Manifold
    Connects reservoir and pump to chiller piping
    Material: Brass or stainless steel
  • Mounting Bracket
    Secures the assembly to the chiller frame
    Material: Steel
Engineering Reasoning
0.5-25 bar (gauge pressure), -20°C to +120°C fluid temperature, 500-3600 RPM pump speed
Cavitation occurs at NPSHa < NPSHr + 0.5 m, bearing failure at >90°C oil temperature, seal failure at >15 bar differential pressure
Design Rationale: Cavitation due to vapor pressure drop below saturation at 0.023 bar absolute at 20°C refrigerant, bearing fatigue from Hertzian contact stress exceeding 1.8 GPa yield strength
Risk Mitigation (FMEA)
Trigger Refrigerant contamination with >50 ppm moisture content
Mode: Hydrolysis of ester-based lubricant forming organic acids
Strategy: Molecular sieve desiccant with 3Å pore size in reservoir, maintaining dew point <-40°C
Trigger Radial load >1.5 kN on pump shaft from misaligned coupling
Mode: Bearing L10 life reduction from 20,000 to <2,000 hours
Strategy: Laser-aligned flexible coupling with <0.05 mm parallel offset tolerance

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Reservoir / Pump Assembly.

stainless steel chiller pump reservoir assembly industrial refrigerant circulation pump unit centrifugal pump with reservoir for chillers machinery equipment reservoir pump assembly cast iron copper alloy pump reservoir system

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Chiller Unit
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 25 bar (max operating pressure)
flow rate: Up to 300 L/min (depending on pump model)
temperature: -40°C to +120°C
slurry concentration: Not applicable - designed for clean refrigerant systems only
Media Compatibility
✓ R-134a refrigerant ✓ R-410A refrigerant ✓ R-32 refrigerant
Unsuitable: Corrosive or abrasive slurries containing solid particles
Sizing Data Required
  • Required refrigerant flow rate (L/min)
  • System operating pressure (bar)
  • Reservoir capacity needed for refrigerant charge (liters)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cavitation
Cause: Insufficient net positive suction head (NPSH) due to low fluid level, high fluid temperature, or excessive pump speed causing vapor bubble formation and implosion on impeller surfaces.
Bearing failure
Cause: Inadequate lubrication, contamination from fluid ingress or particulate matter, misalignment, or excessive radial/axial loads leading to overheating and premature wear.
Maintenance Indicators
  • Unusual high-frequency vibration or audible knocking sounds from the pump housing
  • Visible fluid leakage at shaft seals or abnormal discharge pressure fluctuations on gauges
Engineering Tips
  • Implement strict NPSH monitoring and maintain reservoir fluid levels/temperatures within design specifications to prevent cavitation damage.
  • Establish predictive maintenance routines using vibration analysis and thermography to detect early bearing degradation before catastrophic failure.

Compliance & Manufacturing Standards

Reference Standards
ISO 13709:2009 (Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries) ANSI/HI 14.6-2011 (Rotodynamic Pumps for Hydraulic Performance Acceptance Tests) DIN EN 809:1998 (Pumps and Pump Units for Liquids - Common Safety Requirements)
Manufacturing Precision
  • Bore Diameter: +/-0.025mm
  • Surface Flatness: 0.05mm per 100mm
Quality Inspection
  • Hydrostatic Pressure Test (1.5x Maximum Working Pressure)
  • Material Composition Verification via Optical Emission Spectrometry

Factories Producing Reservoir / Pump Assembly

Verified manufacturers with capability to produce this product in China

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✓ 96% Supplier Capability Match Found

P Procurement Specialist from Australia Jan 07, 2026
★★★★★
"Found 33+ suppliers for Reservoir / Pump Assembly on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
T Technical Director from Singapore Jan 04, 2026
★★★★★
"The technical documentation for this Reservoir / Pump Assembly is very thorough, especially regarding technical reliability."
Technical Specifications Verified
P Project Engineer from Germany Jan 01, 2026
★★★★★
"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Reservoir / Pump Assembly so far."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

16 sourcing managers are analyzing this specification now. Last inquiry for Reservoir / Pump Assembly from UAE (1h ago).

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Frequently Asked Questions

What materials are used in this reservoir/pump assembly?

This assembly is constructed from durable materials including stainless steel for corrosion resistance, cast iron for structural integrity, and copper alloys for optimal thermal conductivity in refrigerant systems.

What components are included in the BOM for this assembly?

The bill of materials includes: Reservoir Tank, Centrifugal Pump, Inlet/Outlet Manifold, and Mounting Bracket - all designed to work together as a complete circulation unit.

What industrial applications is this reservoir/pump assembly designed for?

This assembly is specifically engineered for chiller systems in machinery and equipment manufacturing, providing reliable refrigerant circulation for industrial cooling applications.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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