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Refrigeration Accessories: Comprehensive Technical & Procurement Guide

Refrigeration accessories regulate fluid flow, protect system components, manage oil return, and maintain moisture-free conditions across commercial and industrial refrigeration circuits.

Primary Function

Fluid isolation, flow modulation, filtration, oil separation, and liquid storage.

Target Audience

HVAC/R equipment OEMs, system integrators, and industrial wholesale distributors.

Core Engineering Value

Low pressure drop, high pressure containment reliability, and structural compatibility with standard, high-pressure, and low-GWP refrigerants.

Refrigerant Shut Off Valve
The refrigerant stop valve is a key control component in the refrigeration system, specially designed for the transportation, cut-off and regulation of refrigerants. It is precision-processed with
Refrigeration Globe Valve
The refrigerationglobe valve is an indispensable control component in the pipeline of the refrigeration system. It is mainly used for flow control, cut-off and flow regulation of refrigeration
3 Way Refrigeration Ball Valve
The 3 way refrigeration ball valve is a special control valve with shunting, confluence and cut-off functions in the refrigeration system. It is specially designed for medium switching and flow
Electronic Expansion Valve
The electronic expansion valve is a core throttling control component in the refrigeration system. It is designed by combining electronic control technology with precision mechanical structure,
Refrigeration System Expansion Valve
The refrigeration system expansion valve is a key throttling component in the refrigeration cycle, located between the condenser and the evaporator. Its core function is to throttle and reduce the
Solenoid Valve for Refrigeration System
The refrigeration solenoid valve is a core executive component that controls the automatic on-off of refrigerant in the refrigeration system. It is widely used in various fields such as HVAC,
Compressor Oil Water Separator
The compressor oil-water separator is a crucial auxiliary device specially designed for air compressors, which is mainly used to separate the lubricating oil entrained in the compressed air
Oil Separator in Refrigeration System
The oil separator in refrigeration systems is a key auxiliary component in the vapor compression refrigeration system. Installed between the compressor outlet and the condenser inlet, its core
Liquid Receiver Refrigeration
The liquid receiver refrigeration system is a core auxiliary equipment to ensure the stable and efficient operation of the system, known as the blood storage organ and safety hub of the system. It is
Filter Drier in Refrigeration System
The Filter drier in refrigeration system is an indispensable protective component in refrigeration systems, known as the purification guard of the system. It is mainly installed on the liquid pipe

Product Types & Selection

Product Category	Core Function	Primary Selection Criteria
Refrigeration Shut-Off Valve	Service isolation and refrigerant charge control	Connection type, nominal diameter (DN), working pressure
Refrigeration Ball Valve	Bi-directional full-flow shut-off in liquid, suction, and discharge lines	ODF/ODM size, flow coefficient (C_v), max working pressure
Refrigeration Expansion Valve	Superheat regulation and liquid refrigerant metering	Capacity (TR/kW), refrigerant type, equalization port type
Refrigeration Solenoid Valve	Automatic liquid, suction, or hot gas line shut-off	Voltage (AC/DC), orifice size, Maximum Operating Pressure Differential (MOPD)
Refrigeration Oil Separator	Extract oil from discharge gas and return to compressor	Shell diameter, oil retention volume, connection size, oil return mechanism
Refrigerant Receiver	Liquid storage and system charge compensation under varying loads	Volume capacity, PED/ASME compliance, design pressure
Refrigeration Filter Drier	Moisture, acid, and solid debris removal	Core type (solid/loose), desiccant volume, connection size, filtration micron rating

Technical Specifications & Engineering Documents

Maximum Working Pressure (MWPS)

Up to 4.5 MPa (650 PSI); transcritical CO2 (R744) models rated up to 14.0 MPa.

Operating Temperature Range

-40°C to +120°C (-40°F to +248°F).

Body Materials

Forged brass (HPb59-1 / C37700) for valves; seamless carbon steel or copper for pressure vessels and filter shells.

Connection Standards

ODF (copper extended), ODM, flare, NPT/UNF threads, and ANSI/DIN flanges.

Certifications

PED 2014/68/EU compliance, UL-listed valve options, ISO 9001 manufacturing quality standards.

Engineering Downloads

2D/3D CAD models (STEP format) available for system layout integration.
Technical Data Sheets (PDF) including complete pressure drop curves and torque specifications available upon request.

Applications & Compatibility

Typical Operating Environments

• Commercial Refrigeration: Supermarket multi-compressor rack systems, walk-in cold rooms, display cases.

• Industrial Cooling: Process water chillers, food processing refrigeration, cold storage warehousing.

• HVAC Systems: Commercial chillers, rooftop air conditioners, industrial heat pump loops.

Refrigerant Compatibility

• HFC / HFC Blends: R410A, R134a, R404A, R507.

• HFO & Low-GWP Blends: R32, R1234ze, R454C.

• Natural Refrigerants: R744 (CO2 - specific high-pressure variants), R290 (Propane - compatible models).

Customization, Manufacturing & Supply

Manufacturing Capabilities
• Machining: Multi-axis CNC machining centers for valve bodies and internal spools to maintain strict dimensional tolerances and prevent internal leakage.

• Vessel Fabrication: Automatic submerged arc welding and orbital tube welding stations for receivers and oil separators.

• Heat Treatment & Brazing: Controlled-atmosphere vacuum brazing furnaces for clean internal passages and high joint tensile strength.

OEM / ODM Customization Services
Custom connection sizes (metric and imperial variations).
Tailored working pressure ratings and wall thicknesses for specialized refrigerants.
Private label laser marking, custom surface treatments (nickel-plating, anti-corrosion painting), and dedicated industrial packaging.

Supply Chain & Logistics
Standard catalog items maintained in buffer stock for rapid dispatch.
Flexible batch manufacturing schedules for OEM volume orders.
Secure export packaging (fumigation-free wooden crates and moisture-barrier wrapping) to prevent transit damage.

Quality Control & Support

Quality Inspection Protocols

Leak Testing

100% helium mass spectrometer leak testing on valves and pressure vessels under rated pressure.

Pressure Testing

Hydrostatic burst and proof pressure testing conducted per batch according to PED/ASME standards.

Dimensional Inspection

Coordinate Measuring Machines (CMM) used for critical interface tolerances.

Material Traceability

Positive Material Identification (PMI) and mill test reports (MTR 3.1) available for metal components.

Frequently Asked Questions

Q: What is the standard maximum working pressure (MWPS) for standard copper and brass accessories?

A: Standard catalog valves and filter driers are rated for MWPS up to 4.5 MPa (650 PSI). High-pressure variants for R410A and subcritical CO2 systems are available upon request.

Q: Are these refrigeration valves compatible with R32 and R290 refrigerants?

A: Yes, standard brass and copper components are compatible with mildly flammable (A2L) and hydrocarbon (A3) refrigerants, provided electrical components (such as solenoid coils) meet relevant explosion-proof classifications.

Q: What documentation is provided for pressure vessels like receivers and oil separators?

A: Each pressure vessel shipment includes Material Test Reports (MTR 3.1), PED/pressure compliance documentation, and welded joint inspection records upon request.

Q: Can connection sizes and thread standards be customized for OEM projects?

A: Yes. We support custom port configurations, including non-standard ODF diameters, special NPT/UNF thread pitches, and flanged connections based on engineering drawings.

Q: How do you verify leak-tightness prior to factory shipment?

A: Every valve and pressure vessel undergoes 100% helium mass spectrometer leak testing and pressure decay checks to ensure zero leakage before packaging.

Q: What is the typical lead time for bulk OEM orders versus standard stock items?

A: Standard off-the-shelf components ship within 7 to 15 business days. Custom OEM production runs typically require 30 to 45 days depending on tooling and volume requirements.

Request a Quote (RFQ)

To receive an accurate technical proposal and commercial quotation, please provide the following details in your inquiry:
Product Type & Model: (E.g., Refrigeration Ball Valve, Filter Drier, Oil Separator)
Refrigerant Type: (E.g., R410A, R134a, R32, CO2)
Connection Size & Type: (E.g., 5/8" ODF, 1/2" SAE Flare)
Design Pressure / Operating Conditions:
Required Quantity:
Target Delivery Port / Destination:

Zhejiang Xuanyuntong Refrigeration Technology Co., Ltd. is one of the most experienced refrigeration accessorie manufacturers and suppliers in China. We warmly welcome you to wholesale high quality refrigeration accessorie made in China here from our factory. Also, custom service is available.

Refrigeration Accessorie