Description
Product Summary
The Supco SBC34 Coupler, Solder Free, 3/4" is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. SB1 Series Quick Connect Refrigerant Fittings are FLAME FREE, Tool FREE and Problem FREE! /they are available as couplers, (45 & 90°) elbows and flares for 1/4" to 7/8" copper tubing. No brazing, tools or nitrogen purge needed for installation.
Access valves, line-tap and piercing valves, service valves, and brass fittings for charging, testing, and servicing refrigerant systems. Select the correct tube size and connection type, and use solder or brazed valves for permanent installations.
Key Features
- Approved for Hard Drawn Copper: 1/4" - 7/8" Type ACR, M, L, K
- Approved for Hard Soft Copper (Annealed): 1/4" - 7/8" Type ACR, L, K
- Approved Refrigerants - R134a, R404A, R290, R407A, R600a, R507, R22, R410A, R32, R407C, R448A, R449A, R454B, R500, R1234yf, R1234ze
- C3771 Brass Body
- UL Listed 207, SA #44910 SDTW(7)
- Vibration Resistant Rating UL 1963
- WARNING: Prop 65 info
Specifications
| Brand | Supco |
|---|---|
| Part Number | SBC34 |
| Part Type | Valve / Fitting |
| Continuous Operating Temperature | 250°F / 121°C |
| O-Ring Temperature | -40°F / 250°F (-40°C / 121°C) |
| Maximum Rated Pressure (MRP) | 870 PSI / 60 Bar |
| Minimum Burst Pressure | 3600 PSI / 250 Bar |
| Vacuum Pressure Capability | 30 Microns |
| Compatibility-Tubing Tolerance | ASTM B280, UNI EN 12735 |
| Fitting Material | C3771, Polycarbonate |
| O-Ring Material | Chloroprene |
| Connection Size (Inch) | 0.750 |
| Length (Inch) | 2.579 |
| Outside Diameter (Inch) | 1.457 |
| Connection Thread | None |
Cross Reference
The Supco SBC34 is a direct replacement for the following OEM and competitor part numbers. Always verify ratings and fit against the original part before installing.
| Replaces Part # | Manufacturer | Description |
|---|---|---|
| 87022 | Rectorseal® | |
| PF-87022 | Diversitech® |
Frequently Asked Questions
Can SB1s be used with aluminum, steel or stainless steel tubing?
No, only copper to copper connections
What is the shelf life of the fittings?
The manufacturer sets the shelf life @ 30+ years
Do the fittings need to be insulated after an install?
Yes, just as you would with any other fitting where it would be subject to condensation.
What is the #1 cause of problems with the SB1 fittings ?
Not reading/following the installation instructions
The SBLM1458 depth gauge only goes up to 5/8” so how do I mark 3/4” & 7/8” tubing?
Part number SBLMDC3478 is a combo tool, combining both a depth gauge and a disconnect tool
Do SB1s need to be replaced when retrofitting to a lower GWP refrigerant?
Yes. The compression set of the super neoprene o‐rings may be compromised when transitioning from one refrigerant to another. Always install new fittings.
Can the fittings be removed and reinstalled on the same spot of tubing?
The fitting can be installed onto the same spot if the tube is properly sanded and cleaned, removing any etch marks, or replace onto a clean section of tubing.
What is the warranty on SB1 fittings?
A 5‐year limited warranty policy which is available upon request.
Related Parts
Commonly used with: Supco SBLMDC3478.
White Paper
- Supco SBC34 Product Specification Sheet (PDF)
- Supco SBC34 Installation & Operation Manual (PDF)
- Supco SBC34 Application Sheet (PDF)
What's Included
- (1) Supco SBC34 Coupler, Solder Free, 3/4"
Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.
