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Expanding Gate Valve Brochure

Expanding Gate Valve Brochure

Expanding Gate Valve Brochure

Product catalog summary
Overview: The document provides detailed information about the expanding gate valves designed by National Oilwell Varco for liquid service applications. These valves are characterized by a full bore, through-conduit design with a mechanically sealing gate to ensure positive shut-off.
Specifications: The valves are manufactured and tested according to API 6D and ANSI B16.34 specifications. They feature a full port, through conduit, double block and bleed, mechanical sealing, and provable zero leakage. The valves are available in sizes ranging from 2” to 36” and pressure classes from ANSI 300 to 2500. Operating temperatures range from -20º F to +550º F.
Features: Key features include reduced wear on sealing surfaces, inline repairability, an external thermal body relief system, and seat sealant/injection ports for sizes 6” and up. Options for actuation include bare stem, electric, or hydraulic actuators.
Materials of Construction: The document lists materials used for various parts of the valve, such as ASTM A216 WCC for the body, AISI 1018/1020 for the yoke tube, and 17-4 PH SS for the stem. Recommended spare parts and soft goods are also identified.
Applications: These valves are suitable for mainline blocks, launchers/receivers, pumping stations, multi-product manifolds, product isolation, filtration and process, high temperature, and metering stations.
Dimensions and Weights: Detailed tables provide dimensions and approximate weights for various valve sizes and classes, highlighting the flexibility and adaptability of the valves for different pressure and temperature requirements.
Disclaimer: The document concludes with a disclaimer stating that the information is for general purposes and not intended for design purposes, with all applications being at the user's risk.
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Catalog excerpts

Expanding Gate Valve Brochure-1

Production Solutions [email protected] nov.com/midstream

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Expanding Gate Valve Brochure-2

Our cast body expanding gate valve is designed for use in liquid service applications. This full bore, through-conduit gate valve features a mechanically sealing gate to assure positive shut-off. The valve can be trimmed to meet most specifications handling a wide range of products and services. Extensions and adaptation for actuation are options regularly requested and provided. When the valve is completely closed, the gate and segment are expanding tightly against each seat. During operation, the gate and segment retract from the seats prior to travel. This retraction reduces wear on the resilient...

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Expanding Gate Valve Brochure-4

* Recommended Spare Parts + Soft Goods NACE trim available upon request Production Solutions

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Expanding Gate Valve Brochure-6

Production Solutions

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Expanding Gate Valve Brochure-7

* 12” 300 Class Valves have 400 Class end-to-end dimensions

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Expanding Gate Valve Brochure-8

National Oilwell Varco has produced this brochure for general information only, and it is not intended for design purposes. Although every effort has been made to maintain the accuracy and reliability of its contents, National Oilwell Varco in no way assumes responsibility for liability for any loss, damage or injury resulting from the use of information and data herein. All applications for the material described are at the user’s risk and are the user’s responsibility. Corporate Headquarters 7909 Parkwood Circle Drive Houston, Texas 77036 USA Valves 4554 Kennedy Commerce Drive Houston, Texas...

 Open the catalog to page 8

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.