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Shuttle Valves

281 Spring-Biased Shuttle Valve

The poppet in this miniature shuttle valve is biased so that the emergency port (E) is normally closed and the normal (N) and service (S) ports are connected. It is ideal for applications with flow rates up to 7.2 GPM.

Key Product Facts
  • Type:Spring-Biased
  • Diameter:0.281 inches
  • Lohm Rate:130 Lohms max.
  • Maximum Working Pressure:Up to 4000 psi

Product Information

General Performance
Characteristic Specification
Normal Flow Rate (N to S or S to N) 130 Lohms max.
Emergency Flow Rate (E to S) 130 Lohms max.
Maximum Rated Flow 7.2 GPM
Shuttling Pressure 15 psid (min.) 40 psid (max.)
Maximum Leakage: (N to E or E to N at 4000 psid) 5 Drops / Hour after 2 Minute wait
Screen Hole Size 0.008 inches Nominal
Nominal System Pressure up to 4000 psi
Nominal Weight 4.0 grams
Test Fluid MIL-PRF-83282 at 85°F
Materials
PART MATERIAL SPECIFICATION
Body – Rear 304L CRES AMS 5647
Body – Front 15-5PH CRES AMS 5659
Pin 303 CRES QQ-S-763C
Spring 17-7PH CRES AMS 5678
Poppet 440C CRES AMS 5630
Nose Seal 6061-T6 Al AMS 4117
Finish: All CRES parts passivated.
Pins are pre-waxed. Do not degrease. Do not lubricate.
Cross Section View
Dimensional View
Installation Hole Details

Part Numbers & Specifications

This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.

Part Numbers & Specifications
PART NUMBER Nominal System Pressure (psi) LOHM RATE SCREEN HOLE SIZE (inches) Nominal Weight (g) Request Information
SVBA2810313D 4000 130 Lohms Maximum N/A 4 Request

Installation & Accessories

Replacement Parts & Accessories
PART NUMBER DESCRIPTION
CUTA2810137C Installation / Extraction Tool Set
PRFA2810003A Replacement Pin
SVBA2810009B Replacement Nose Seal

CAD Envelopes

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From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.