90333-R

Automatic Shut-Off Valve 1/4" MFL × 1/4" FFL — 90°

Professional automatic shut-off valve for HVAC/R service. Features 1/4" male flare (MFL) to 1/4" female flare (FFL) 90° connection. Automatically prevents refrigerant loss when disconnecting hoses. Meets SAE, EPA, and UL requirements for containment of refrigerant.

EPA Compliance

EPA requires shut-off valves within 12 inches of charging hose ends to prevent unnecessary venting of refrigerant. Using shut-off valves is much safer than allowing refrigerant to blow out during service. This valve meets all SAE, EPA, and UL requirements for refrigerant containment.

Key Features

• Quick Disconnect: No loss of refrigerant when disconnecting
• EPA Compliant: Meets SAE, EPA, and UL requirements
• Automatic Shut-Off: Prevents refrigerant loss when disconnecting
• 90° Configuration: Right-angle connection for tight spaces
• 1/4" MFL × 1/4" FFL: Male to female flare 90° connection
• Simple Installation: Valve screws onto hose end
• Professional Quality: Precision-machined brass construction
• Durable Construction: Built to last in demanding environments
• Reliable Sealing: Ensures leak-free connections
• Time Saving: No need to close manifold valves before disconnecting

Technical Specifications

• Model: 90333-R
• Type: Automatic shut-off valve
• Connection 1: 1/4" Male Flare (MFL)
• Connection 2: 1/4" Female Flare (FFL)
• Configuration: 90° (right angle)
• Material: Brass
• Compliance: Meets SAE, EPA, and UL requirements
• Barcode: 700376105124
• SKU: 90333-R
• HS Code: 84818099

Applications

• HVAC/R service connections in tight spaces
• Refrigerant handling equipment
• Manifold gauge sets
• Preventing refrigerant loss during hose disconnection
• EPA-compliant refrigerant containment
• Workshop and mobile service operations

90° vs Straight Configuration

90° (This Product):

• Right-angle connection for tight spaces
• Reduces hose strain and kinking
• Ideal for confined work areas
• Better hose routing in cramped engine bays

Straight (90335-R):

• Inline connection
• More compact overall length
• Simpler installation

Why Use Automatic Shut-Off Valves?

• EPA Compliance: Required within 12 inches of hose ends
• Prevents Refrigerant Loss: Automatically closes when disconnected
• Environmental Protection: Prevents unnecessary venting
• Safety: Much safer than allowing refrigerant to blow out
• Time Saving: No need to close manifold valves first
• Professional Standard: Essential for efficient service
• Convenience: Faster hose changes

Replacement Parts

• Replacement Gasket: 90330 / 90336

Related Shut-Off Valves

90° Shut-Off Valves:

• 90333-R — 90° 1/4" FL-M × 1/4" FL-F - This Product
• 90333-UV — 90° 1/4" FFL × 13mm

Straight Shut-Off Valves:

• 90335-R — Straight 1/4" FL-M × 1/4" FL-F

Perfect For

• HVAC/R service technicians
• Automotive A/C specialists
• Refrigeration specialists
• Mobile service operators
• Workshop environments
• Professional service operations
• EPA-compliant refrigerant handling
• Work in tight spaces

Installation

• Simple Installation: Valve screws onto hose end
• Position Correctly: Install within 12 inches of hose end for EPA compliance
• Check Operation: Verify automatic shut-off function

Maintenance

• Inspect Regularly: Check for wear or damage
• Replace Gasket: Use 90330 or 90336 replacement gasket when needed
• Keep Clean: Wipe clean after use

Professional Quality: Precision-machined brass automatic shut-off valve with 1/4" male to female flare 90° connection. Prevents refrigerant loss when disconnecting hoses and meets SAE, EPA, and UL requirements for refrigerant containment in HVAC/R service operations.