Refrigeration Parts-Manifold Gauge Manufacturers
As a Refrigeration Parts-Manifold Gauge Manufacturers, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.
Ningguo Kingcool Import and Export Co., Ltd supplies Manifold Gauge sets and components for refrigeration and air-conditioning service professionals. Our range covers aluminum manifold bodies, single gauge valves, pressure gauges, and complete manifold assemblies with R134a, R410a, R22, R404a, and R407c scales. We support HVAC contractors, appliance parts distributors, and OEM service networks that need consistent pressure measurement and controlled refrigerant charging.
As a China manifold gauge manufacturer and refrigeration parts supplier, we combine manifold gauge sourcing with a broader one-stop appliance parts program. Our manifold gauge line sits inside our Refrigeration Parts range, alongside copper tubes, filter driers, control valves, and installation materials. This lets project teams consolidate refrigerant service tools and system components in a single order.
Manifold Gauge Range at a Glance
- Aluminum Manifold Gauge: Lightweight body for field service, with dual gauge ports and color-coded valves.
- Single Gauge Valve: Compact valve for charging, evacuation, or pressure testing on single-line connections.
- Pressure Gauge RG-250/RG-500: 1/8 NPT connection, 2-3/4 in. diameter dial, scale options for R12/R22/R502 and R22/R404a/R407c/R134a.
- Manifold Gauge R134A R410: Assemblies configured for common refrigerant families used in residential and light commercial systems.
Application Fit Across Refrigeration and HVAC Service
Manifold gauges are used wherever refrigerant pressure must be read, compared, or controlled during installation, commissioning, and maintenance. Our gauges suit split air conditioners, refrigerators, cold-room condensing units, and packaged refrigeration equipment. The aluminum manifold body keeps the tool light enough for rooftop and field work, while the gauge dials provide clear low-side and high-side readings.
For distributors, the range covers both complete manifold sets and individual pressure gauges or valve bodies. Service companies can standardize on one manifold platform and replace only the gauge or valve as needed. OEM service networks can specify scale sets that match the refrigerants used in their installed base.
Materials, Connections, and Critical Specifications
The manifold body is typically aluminum for weight reduction and corrosion resistance. Gauge connections use 1/8 NPT threads, and hose connections follow standard refrigeration service sizes. Dial diameter is 2-3/4 in. on the RG-250/RG-500 pressure gauge. Scale sets are printed for specific refrigerant groups, so the gauge face must match the refrigerant being serviced.
| Item | Typical Specification | Application Note |
|---|---|---|
| Manifold body material | Aluminum | Lightweight for field service; resists corrosion in normal HVAC environments |
| Gauge connection | 1/8 NPT | Standard thread for pressure gauge replacement and manifold assembly |
| Dial diameter | 2-3/4 in. (RG-250/RG-500) | Readable scale for low-side and high-side pressure checks |
| Scale options | R12/R22/R502; R22/R404a/R407c/R134a | Match scale to refrigerant family used in the service market |
| Valve configuration | Dual valve manifold; single gauge valve | Dual for evacuation and charging; single for compact service kits |
Configuration Options and Customization
We configure manifold gauge orders around the refrigerant scale, connection type, valve count, and packaging format. Scale printing can be aligned to the refrigerants most common in your market. For distributors, we can discuss private-label packaging and mixed cartons that combine manifold gauges with other refrigeration parts.
- Scale set: R12/R22/R502 or R22/R404a/R407c/R134a, depending on service market.
- Connection: 1/8 NPT gauge ports; standard refrigeration hose connections.
- Valve count: Single gauge valve or dual-valve manifold.
- Packaging: Bulk cartons for distributors; retail-ready packs for service channels.
Quality Control and Acceptance
Our quality approach follows the same discipline we apply to our capacitor production: incoming material screening, in-process monitoring, and finished-product testing. For manifold gauges, this means checking thread fit, valve operation, dial readability, and scale accuracy before packing. We can discuss inspection criteria and sampling plans with project teams that require documented acceptance.
Where a project requires compliance evidence, we provide the documentation available for the specific manifold gauge configuration. We do not apply certifications to products that have not been tested under the relevant standard. The acceptance scope is agreed before shipment so that receiving inspection matches the order specification.
Installation, Maintenance, and Spare Parts
Manifold gauges are service tools, so installation is limited to connecting hoses and tightening fittings to the correct torque. The main maintenance points are valve O-rings, gauge lens condition, and thread cleanliness. We supply replacement pressure gauges and single gauge valves so that service companies can repair rather than replace complete manifolds.
For distributors, stocking spare gauges and valve bodies reduces downtime for end users. We can include spare parts in the same shipment as complete manifold sets, which simplifies inventory planning for a service network.
Related Refrigeration Parts We Supply
Manifold gauges are part of a wider refrigeration parts program. Project teams often combine them with copper tubes, filter driers, control valves, and installation materials. Our Refrigeration Parts category covers these items, and our PRODUCT range includes air-conditioner parts, refrigerator parts, and instruments and tools.
- Refrigerant copper tube: For line sets and system connections.
- Filter drier and oil separator: For moisture and contaminant control.
- Control valve and fittings: For system regulation and service access.
- Vacuum pump and recovery unit: For evacuation and refrigerant recovery.
Information We Use to Configure Your Solution
To prepare a manifold gauge configuration and quotation, we need the working refrigerant, connection standard, valve count, and expected order volume. Packaging and labeling requirements also affect the configuration. If the manifold gauges are part of a larger refrigeration parts order, we need the full item list so that we can consolidate shipment and documentation.
| Project Input | Why We Need It |
|---|---|
| Refrigerant type | Determines the gauge scale set and pressure range |
| Connection standard | Confirms 1/8 NPT or other required thread |
| Valve configuration | Single gauge valve or dual-valve manifold |
| Order volume | Supports production planning and packaging selection |
| Packaging and labeling | Aligns carton, retail pack, and private-label requirements |
Frequently Asked Questions
What refrigerant scales do you offer for manifold gauges?
We offer scale sets for R12/R22/R502 and R22/R404a/R407c/R134a. The correct scale depends on the refrigerants used in your service market. We confirm the scale set before production.
Can you supply both complete manifold sets and individual gauges?
Yes. We supply aluminum manifold gauge sets, single gauge valves, and replacement pressure gauges. Distributors can order complete sets and spare gauges in the same shipment.
What connection size do your pressure gauges use?
The RG-250/RG-500 pressure gauge uses a 1/8 NPT connection with a 2-3/4 in. dial. Other manifold configurations follow standard refrigeration service connections.
Do you provide private-label packaging for manifold gauges?
We discuss private-label and retail packaging as part of the configuration. Packaging requirements are confirmed with the order specification so that cartons and labels match your channel.
How do you handle quality checks before shipment?
We check thread fit, valve operation, dial readability, and scale accuracy before packing. Inspection criteria and sampling plans can be agreed for projects that require documented acceptance.
Can manifold gauges be combined with other refrigeration parts in one order?
Yes. Manifold gauges are part of our refrigeration parts range, so they can be combined with copper tubes, filter driers, control valves, and installation materials in a consolidated shipment.
