Flexgate
Menu-Knife Gate Valves
Features
Ideal for difficult abrasive slurry service
Replaceable elastomer cartridge seats
Heavy-duty 150-psi stainless steel gate
Bi-directional droptight shutoff
Materials of Construction
Knife gate valve Cast Iron Body to 24"
Fabricated Steel Body over 24"
Optional 304SS or 316SS body
Gate ASTM A240 T-316
Optional 17-4 pH, Hastelloy C, or Teflon coated 316 SS
ANSI Class 125/150#
Slurry sleeves: Pure Gum Rubber, Buna-N, EPDM, and Viton.
Description
Knife gate valve Red Valve's Flexgate valve is designed with a cast iron body or fabricated steel body, stainless steel gate, and two heavy-duty elastomer cartridge slurry seats. The port is formed by two heavy duty cartridge elastomer slurry seat halves. The cartridge slurry seats are available in various elastomers for chemical compatibility and abrasion resistance. A flush area at the valve's base provides a clean-out port. The Flexgate valve provides bi-directional shutoff. A heavy-duty topworks is standard.
The relatively simple design eliminates expensive overhauls, unscheduled shutdowns, and costly replacement parts - the only replacement parts are the slurry sleeves and the packing. Flexgate valves of 3"-12" are provided with standard handwheel mechanisms featuring cast handwheels, machined 303 stainless steel stems with yoke sleeves, and thrust washers designed to reduce operating torque. It is recommended that Manual Flexgate Valves 12" and larger be specified with a 4: 1 bevel gear actuator. The 4: 1 bevel gear actuator is available to reduce rim pull and operate the valve. Pneumatic actuators are also available, and allow the Flexgate to provide long-term abrasion resistance under high cycle conditions.
The Knife gate valve self-cleans each time it is cycled, making it ideal for automated plants. Red Valve manufactures its actuators using black Amalgon, a fiberglass reinforced epoxy resin. The actuator material is inert to most corrosive chemicals, hydraulic fluids, water, and oil. It has an operating temperature range from -90° To 225° F, and can withstand maximum working pressures of 250 psi. Inside actuator walls are polished and impregnated with a moly-disulfide for reduced friction and wear. The piston seal is a long-lasting O-ring. The piston rod is sealed with a lip seal, which is protected by a rod wiper ring. This wiper ring prevents dirt from being dragged though the seal.
Red Valve's Flexgate Valves are also available with hydraulic or electric actuators. Other options include limit switches, solenoids, air regulators, and chainwheels.
Shanghai Shangzhou Valve Manufacture Co., Ltd., established in 2001, covers an area of 23, 800 m and owns 8, 570 m² Of building areas. The company is located in Fengxian District of Shanghai, just 8 km away from the golden beach of Fengxian Bay Tourist Resort. It is a specialized manufacturer and supplier which integrates design, development, manufacturing, sales and after-sales service.
Our company always keep improving our key technology, innovating the ideas and strengthening internal management, which help enterprise to develop and grow steadily. Our company also holds technical centers and quality inspection center, all the products designed and manufactured strictly conform to the National Standards or the International Standards. In addition, we supervise the whole process seriously: From purchasing the raw materials to the final shipping.
We effect the policy of "quality first, user foremost, excellence in details, making more efforts", so as to provide customers with better solutions! Meanwhile, our company admitted by ISO9001: 2000 quality management system and has passed the AZ certification which is used for the special equipments of pressure pipes.
All our products can be made under different standards such as: GB, API, DIN, JIS, etc. Main products include gate valves, globe valves, ball valves, butterfly valves, plunger valves, check valves, leakproof valves and other special industrial valves. Patented products include leakproof valve (Patent No. 02232995.1), leakproof globe valve (Patent No. 01227164.0), leakproof gate valve (Patent No. 200820055101.9), no return ball valve (Patent No. 02235459. X) and soft-sealing thin gate valve (Patent No. 200820055102.3). As for the materials of valve body, there are carbon steel, alloy steel, stainless steel, ultralow carbon stainless steel, and etc. The valve pressure rating ranges from PN1Mpa. To 57 Mpa. (American standard pressure rating ranges from 150 LB to 3, 500 LB); The nominal diameter ranges from DN10mm to DN2000mm (American standard specification ranges from 1/2" to 36"); And the applicable operating temperature is from -196C to 780C. Our Company's valve products are widely used in industries such as petroleum, fuel gas, electric power, chemical engineering and metallurgical industry.
Shangzhou has been in an unprecedented new stage of development. The products are more and more popular due to the perfect performance, high quality, reasonable price, good customer service and efficient brand operation. We sincerely expect your further support and trust. Looking forward to working with you and creating a prosperous future together! ²
