Vsr at series switch pdf manual download. Vsr at 2 vsr at 2 1 2 vsr at 3 vsr at 3 1 2 vsr at 5 vsr at 6 vsr at 4 vsr at 8. The model vsr st is a vane type waterflow switch for use on wet sprinkler systems that use 1 1 1 4 1 1 2 or 2 pipe sizes.
