R134A AC Refrigerant Manifold Gauge Set
DABUND R134A AC Refrigerant Gauge is an analog manifold gauge set for servicing compatible R134A air-conditioning and refrigeration systems. It allows technicians to monitor both low-side and high-side refrigerant pressure during system inspection, troubleshooting, evacuation and refrigerant charging procedures.
The manifold uses double O-ring piston valves according to the current product information. Manifold configurations equipped with a sight glass also allow visual observation of liquid during applicable service procedures.
Quick Answer: This product is an analog R134A refrigerant manifold gauge set designed to monitor low-side and high-side pressure during compatible air-conditioning and refrigeration service work.
Ordering Notice: The current product information does not specify the exact low-side pressure range, high-side pressure range, manifold connection size, hose length or hose pressure rating. Confirm these specifications for the exact model before ordering.
R134A Refrigerant Gauge Set Features
| Product Type | AC Refrigerant Manifold Gauge Set |
| Refrigerant | R134A |
| Gauge Type | Analog |
| Pressure Monitoring | Low-side and high-side refrigerant pressure |
| Valve Design | Double O-ring piston valves |
| Sight Glass | Available on manifold configurations equipped with a sight glass |
| Service Hose | Filling hose shown in current product information |
| Typical Applications | Compatible R134A air-conditioning and refrigeration service |
R134A Manifold Gauge for AC and Refrigeration Service
The manifold gauge set is designed to monitor refrigerant pressure when servicing compatible R134A air-conditioning and refrigeration systems.
The dual-gauge arrangement allows low-side and high-side pressure to be observed from the manifold during applicable system diagnostic and service procedures.
Pressure readings can be used as part of troubleshooting, evacuation and refrigerant charging work when the manifold configuration is correctly matched to the system being serviced.
Testing Manifold Double Meter Valve
Filling Hose
Low-Side and High-Side Pressure Monitoring
The analog gauges allow technicians to monitor refrigerant pressure on both sides of a compatible R134A system.
Low-side and high-side readings can support system inspection and troubleshooting during air-conditioning and refrigeration service work.
The current product information does not provide the exact pressure range of either gauge, so these specifications should be confirmed for the selected model before ordering.
Double O-Ring Piston Valves
The current product information identifies the manifold with double O-ring piston valves.
These valves form part of the manifold flow-control arrangement used during compatible HVACR servicing procedures.
Manifold Sight Glass
Manifold configurations equipped with a sight glass allow visual observation of liquid during applicable servicing procedures.
Because the current product information does not confirm that every version includes a sight glass, buyers should verify this feature for the exact R134A manifold gauge configuration being ordered.
Gauge Zero Calibration
Before using the manifold gauge set, check whether the gauges return to 0 psi when not pressurized.
According to the current product instructions, if a gauge does not read 0 psi, remove the gauge face and adjust the calibration screw until the pointer returns to 0 psi.
Checking the zero position before service work helps ensure that pressure readings start from the correct reference point.
R134A Refrigerant Gauge Applications
This R134A refrigerant gauge set can be considered for compatible air-conditioning and refrigeration service work including:
R134A air-conditioning system servicing
R134A refrigeration system servicing
Low-side refrigerant pressure monitoring
High-side refrigerant pressure monitoring
System troubleshooting support
Evacuation procedures
Refrigerant charging procedures
Cooling system maintenance and repair
How to Select an R134A Manifold Gauge Set
Confirm R134A Compatibility
Confirm that the selected manifold gauge configuration is intended for the R134A system being serviced.
Confirm the Gauge Pressure Ranges
Verify the low-side and high-side gauge pressure ranges for the exact model before ordering.
Confirm the Manifold Connection Size
Check the manifold port and service hose connection dimensions against the equipment and service accessories that will be used.
Confirm Hose Specifications
Confirm the required hose quantity, hose length, connection size and pressure specification for the intended servicing application.
Confirm Whether a Sight Glass Is Required
If a manifold sight glass is required for the intended service procedure, verify that the selected configuration includes one.
How to Check the Gauge Before Use
Step 1: Inspect the Gauge Set
Inspect the manifold, gauges, valves and filling hoses before connecting the gauge set to the system.
Step 2: Check the Zero Position
Confirm that each analog gauge reads 0 psi when it is not pressurized.
Step 3: Adjust the Gauge if Required
If a gauge does not return to 0 psi, the current product instructions state that the gauge face can be removed and the calibration screw adjusted to return the pointer to zero.
Step 4: Confirm Hose Connections
Confirm that the filling hoses and manifold connections match the intended R134A service setup before use.
Important Safety Notice
Caution: Never open the high-side valve on the manifold gauge set while the air-conditioning system is operating.
Confirm valve positions and hose connections before connecting the manifold gauge set to the system and follow the service procedures applicable to the equipment being serviced.
Information to Confirm Before Ordering
HVAC distributors, refrigeration service companies, wholesalers and professional technicians should confirm the following information before ordering:
R134A refrigerant compatibility
Low-side gauge pressure range
High-side gauge pressure range
Gauge scale and measurement units
Gauge diameter
Manifold connection size
Service hose connection size
Hose quantity
Hose length
Hose working pressure
Whether a sight glass is required
Package contents
Order quantity
Packaging requirements
OEM or private-label requirements
These parameters are not fully specified in the current product information and should be confirmed for the exact model before placing an order.
R134A Gauge Sets for Distributors and HVACR Service Companies
DABUND supplies refrigerant manifold gauge sets and related HVAC installation and service products for distributors, wholesalers, contractors and professional service companies.
OEM and ODM requirements can be discussed according to manifold configuration, gauge requirements, hose configuration, packaging and commercial purchasing requirements.
Frequently Asked Questions
What is an R134A refrigerant gauge set used for?
It is used to monitor low-side and high-side refrigerant pressure during compatible R134A air-conditioning and refrigeration service procedures.
Is this manifold gauge set designed for R134A?
Yes. This product page identifies the gauge set as an R134A refrigerant gauge.
Is this an analog or digital refrigerant gauge?
The current product information and images show an analog manifold gauge configuration.
Does the gauge set measure both low-side and high-side pressure?
Yes. The manifold is designed to monitor both low-side and high-side refrigerant pressure during applicable service procedures.
Does the manifold use double O-ring piston valves?
Yes. The current product information identifies the manifold with double O-ring piston valves.
Does the R134A manifold gauge set include a sight glass?
Some manifold configurations may include a sight glass. Confirm whether the exact R134A model being ordered includes this feature.
Can this gauge set be used for refrigerant charging?
Yes. The current product information identifies refrigerant charging as one of the manifold gauge set applications when the product is correctly configured for the system being serviced.
Can the manifold gauge set be used during evacuation?
The current product information identifies evacuation as an applicable service procedure for manifold gauge sets.
What should I do if the gauge does not read 0 psi?
According to the current product instructions, remove the gauge face and adjust the calibration screw until the pointer returns to 0 psi.
What is the pressure range of the R134A gauges?
The current product information does not specify the low-side or high-side gauge pressure ranges. Confirm these specifications for the exact model before ordering.
What connection size does this R134A gauge set use?
The current product information does not specify the manifold port or hose connection size. Confirm the required connection dimensions before ordering.
Are filling hoses included?
Filling hoses are shown in the current product information. Confirm the exact quantity, hose length, connection size and package contents for the selected model.
Can I open the high-side valve while the AC system is operating?
No. The current product instructions specifically state that the high-side manifold valve should not be opened while the air-conditioning system is operating.
Can DABUND provide OEM or ODM R134A manifold gauge sets?
Yes. OEM and ODM requirements can be discussed according to manifold configuration, gauge requirements, hose configuration, packaging and commercial order requirements.
Can I request a sample?
Sample requests are available according to the current sales policy. View sample information.
What payment terms are available?
Available payment methods can include T/T, L/C at sight and credit card. Final payment terms depend on the commercial agreement.
What delivery terms are available?
Available international trade terms can include EXW, FOB, CFR and CIF.
What is the typical delivery time?
The current product information lists a typical delivery period of approximately 15–20 days. Actual lead time depends on order quantity, product configuration, customization and production schedule.
