Demco Gate Valve

JEFA Demco Mud Gate Valve deliver reliable performance in heavy duty oilfield applications.

Working pressure from 2000 to 5000psi.

Demco Gate Valve

The seat is rubber sulfuretted. Pre-compression between seat and gate to achieve sealing.

This gate valve uses a rising  stem design. The seal between the bonnet and body which are jointed by bolts with a sealing ring, simplifying the structure and ensuring sealing properties.  

The stem double acting thread design, O ring and anti-extrusion seal minimize torque, promote longer life.

JEFA Supply follow API6A standard products with competitve price with superior quality and service

FC Gate valve

Expandinggate valve

FLS gate valve

BSO gate valve

Hydraulic gate valve 

Plug valve

Mud valve 

Valve replacement parts

Casing head

tubing head

goat head

studded cross/tee

Spacer spools

Weco flange adaptor

Companion flanges 

JEFA machinery is a full service,APIcertified, precision machining and fabrication business that specializes in the design and manufacture wellhead equipment for all of your petroleum and natural gas extraction applications.In addition to providing superior quality and competitive rates on API 6A&16C products and other wellhead supplies, we can also supply you with OEM projects. We are firmly dedicated to providing the highest quality products and services for today's oilfield industry. →Head office in Shanghai ,2 plants in Yancheng, Jiangsu

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