Ultimate User Control with the Model #330

Allowing users ultimate control, Model #330 Manual Relief Valve manages pressure relief at the touch of a button. The push button feature comes into direct contact with the poppet, which allows no flow to pass through it until it is manually pressed. This style is different from our other check and pressure relief valves, which react to a set opening pressure. Pictured in red Polypropylene (and paired with Model #302), the Model #330 is designed to vent pressure or be used as a vacuum. It works with liquid or air applications, but we recommend air in most cases because of hand to button contact. For easy installation in control panels or any flat surface, Model #330 is a 5/8 - 18 UNF (Unified National Fine) thread, and it can also be combined with any Series 300 end fitting.

ISO 9001:2015

Smart Products USA, Inc. is proud to announce we have recently completed ISO 9001:2015 recertification. This achievement recognizes our commitment to providing customers with quality products and services. ISO 9001:2015 certification is internationally recognized and means Smart Products USA, Inc. has implemented an effective Quality Management System.

Shipping During the Holidays

Please Note: The last day we will accept orders to be shipped in December 2020 for a two week delivery is Thursday, December 17, depending on quantity. For questions, contact a Product & Application Specialist at (800) 338-0404.

Smart Products USA will be closed on:

Thursday, November 26
Friday, November 27

Thursday, December 24
Friday, December 25

Thursday, December 31
Friday, January 1