The Class 300 Flanged Gate Valve is an OS&Y stem gate valve. The main body is made of carbon steel and stainless steel. The upper handwheel rotates the gate clockwise downwards, and the valve closes; when the handwheel rotates the gate counterclockwise upwards, the valve opens.
ANSI Class 300 Gate Valve
Class 300 is an ASME pressure-class designation for this Gate Valve, not a fixed 300 psi working-pressure value. The allowable working pressure depends on the selected materials, design temperature, valve construction and applicable pressure-temperature rating.
Class 300 Gate Valve manufacturer in China
Design Standards: API 600, API 603, ASME B16.34
Face to face: ASME B16.10
Flange Standard: ASME B16.5
Inspection & Testing: API 598
NPS: 2″-20″
Main body material: WCB, CF8, CF8M
This product is a conventional gate valve with flanged connection and listed body-material options identified on the current page. Confirm the selected connection, materials and operating requirements before ordering.
Product Overview
This page covers a conventional gate-valve configuration for isolation service. The selected connection, stem arrangement and operating method should be reviewed for the intended installation.
Selection Notes
Confirm the medium, pressure and temperature conditions, size, selected body and trim materials, connection standard, stem arrangement and operating method before ordering.
FAQ
What flange details should be confirmed for this ANSI Class 300 gate valve?
Specify the nominal size, Class 300 mating flange standard, facing, bolt details and required face-to-face dimension. Request the selected valve drawing and its material-dependent pressure-temperature rating rather than treating Class 300 as one pressure valid at every temperature.
Which listed body-material option should be specified?
Choose the required body material from the process and project specification, then ask for its exact grade in the quotation and material documents. The listed material options should not be treated as interchangeable for every medium or temperature.
What operating arrangement is required for the selected installation?
Describe the installation position, available operating space, expected cycle duty and required manual or actuated operation. Request confirmation of the selected stem and operator arrangement, travel clearance and operating requirements before approving the order.
Related Information
Browse Gate Valves, read Valve Technical Knowledge, or visit About Trekre.