The three-bar cut-off butterfly valve includes the valve body, the valve plate and the driving device. The valve plate is opened and closed by a four-bar mechanism. The four-bar mechanism includes an active rod fixed to the main transmission shaft, a two-follower rod between the transmission shaft and the valve plate, and a valve plate. The valve plate support is arranged on the valve plate, the active rod is connected with the valve plate support, and the two follower rods are connected with the transmission shaft and the valve plate support respectively. The butterfly valve drive device drives the main drive shaft to rotate, so as to drive the four-linkage mechanism composed of active rod, two-follower rod and valve plate to move relative to the valve body pedestal, select the appropriate connecting rod size, make the valve plate move according to the set running track, and realize the reliable valve opening and closing action. The lever cutting butterfly valve has the advantages of small structure size and light weight. The valve plate has a period of opening and closing translation process relative to the valve body at the moment of valve opening and closing, and the friction free operation can ensure the sealing performance of the sealing surface for a long time. 1 Suitable for blast furnace hot blast furnace system, can be used as cold air valve, gas (air) cut-off valve, gas (air) combustion valve, flue valve and so on. The utility model has the advantages of compact structure, light weight, small installation space, strict and reliable seal and long life. 2. Main Technical characteristics of connecting Bar cutting Butterfly Valve The finite element analysis and design are adopted to optimize the size of the connecting rod system to ensure the reliable running track of the valve under high temperature and high pressure. At the same time, we adopt the special structure design of sealing compensation, coating, surfacing wear and corrosion resistant material, multi-layer sealing structure at the shaft end, etc., and the use of many patented technologies makes the connecting rod cutting butterfly valve have the characteristics of high temperature resistance, wear resistance and long life.
Rising Stem Gate Valve has threads on the outside of the valve body. The gate stem moves up when the valve opens. Rising stem valves are usually made of cast or forged steel, while non-rising stem valves are more commonly brass, bronze or cast iron. This way you can visually track how open the valve is. For a rising stem gate valve, it is easy to tell whether the valve is open or closed by looking at the exposure of the valve stem. If the handle is flush with the pipe (no stem exposed), the valve is closed. The valve opens if a large amount of the stem is exposed Rising stem gate valve is characterised as having either a rising or a non-rising stem and are produced at HY Valves according to Korea standard KS B2350, and it can also according to DIN 3204 and DIN 3216 standards. Rising stem provides a visual indication of valve position. Non-rising stem gate valves are used where vertical space is limited. Rising stem gate valve must be used as fully open or fully closed position where the vibration does not exist in the system. As they are designed as this purpose gate valves are not suited for regulating flow.
Rising Stem Gate Valve has threads on the outside of the valve body. The gate stem moves up when the valve opens. Rising stem valves are usually made of cast or forged steel, while non-rising stem valves are more commonly brass, bronze or cast iron. This way you can visually track how open the valve is. For a rising stem gate valve, it is easy to tell whether the valve is open or closed by looking at the exposure of the valve stem. If the handle is flush with the pipe (no stem exposed), the valve is closed. The valve opens if a large amount of the stem is exposed Rising stem gate valve is characterised as having either a rising or a non-rising stem and are produced at HY Valves according to Korea standard KS B2350, and it can also according to DIN 3204 and DIN 3216 standards. Rising stem provides a visual indication of valve position. Non-rising stem gate valves are used where vertical space is limited. Rising stem gate valve must be used as fully open or fully closed position where the vibration does not exist in the system. As they are designed as this purpose gate valves are not suited for regulating flow.
Size: 1/2" ~ 36"(DN15 ~ DN900) Rating: ANSI 150lb ~ 1500lb Body Materials: Carbon steel, Stainless steel Trim: A105+ENP, 13Cr, F304, F316 Operation: Lever, Gear, Electric, Pneumatic, Hydraulic actuators
* The SQK Rising Stem Gate Valve is exceptionally sturdy, rugged, and durable, with a reputation for quality, integrity, and long service. * They are designed for tight sealing and ease of operation. The valves are available flanged & butt-weld ends in pressure rating from ASME Class 150 to Class 2500, and in a variety of materials of construction. * Gate Valves are of flexible wedge design, outside screw and yoke, and bolted-bonnet construction. The valves conform to API 600. Main features * Bolted body-bonnet design,seal welded & Valves with pressure seal bonnet * Bellows-sealed Gate and Globe valves available * Bolted body-bonnet joints provided with spiral-wound stainless steel gasket and graphite filler for maximum protection against leaks * Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire reinforcement and corrosion inhibitor * T-head stem-disc connection of gate valve fully meets strength requirements of API 602 and API 598 * Rolled ACME thread on stem for smooth operation * Tapered shoulder on the stem for back seating * Self-aligning type gland assembly with stud-and-nut tightening * Integral hard-faced body seat for globe and check valves * Spring-loaded disc on check valves suitable for no horizontal applications too * Gate and globe valves can be offered with electrical actuators * Austenitic SS forging for body and bonnet of Cryogenic valves, resulting in excellent impact strength, minimal heat loss and resistance to corrosion * Valves can be offered to NACE MR-0175 and other special NACE requirements
* The SQK Extended Stem Gate Valve is exceptionally sturdy, rugged, and durable, with a reputation for quality, integrity, and long service. * They are designed for tight sealing and ease of operation. The valves are available flanged & butt-weld ends in pressure rating from ASME Class 150 to Class 2500, and in a variety of materials of construction. * Gate Valves are of flexible wedge design, outside screw and yoke, and bolted-bonnet construction. The valves conform to SQK OS & Y Gate Valve. Main features * Bolted body-bonnet design,seal welded & Valves with pressure seal bonnet * Bellows-sealed Gate and Globe valves available * Bolted body-bonnet joints provided with spiral-wound stainless steel gasket and graphite filler for maximum protection against leaks * Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire reinforcement and corrosion inhibitor * T-head stem-disc connection of gate valve fully meets strength requirements of API 602 and API 598 * Rolled ACME thread on stem for smooth operation * Tapered shoulder on the stem for back seating * Self-aligning type gland assembly with stud-and-nut tightening * Integral hard-faced body seat for globe and check valves * Spring-loaded disc on check valves suitable for no horizontal applications too * Gate and globe valves can be offered with electrical actuators * Austenitic SS forging for body and bonnet of Cryogenic valves, resulting in excellent impact strength, minimal heat loss and resistance to corrosion * Valves can be offered to NACE MR-0175 and other special NACE requirements
Non -rising Stem Gate Valve (DGV01-TF01) Nominal Diameter: DN40-DN1200 Nominal Pressure: PN1.0/1.6MPa End Standard: EN ISO GB BS DIN HG JB SANS GOST KSB JIS AS ASME Design: BS5163 AWWA C509 Face to Face: B$5163 ASME B16.10 AWWA C509 16 GB/T12221 Testing: EN12266-1 APl598
Cast Iron Stem Gate Valve Cast iron stem gate valve is characterised as having either a rising or a non-rising stem and are produced at HY Valves according to Korea standard KS B2350, and it can also according to DIN 3204 and DIN 3216 standards. Rising stem provides a visual indication of valve position. Non-rising stem gate valves are used where vertical space is limited. Gate valves must be used as fully open or fully closed position where the vibration does not exist in the system. As they are designed as this purpose gate valves are not suited for regulating flow. HY Cast iron stem gate valve can be produced with indicator, rising or non-rising stem, draining plug in GG25, GGG40, GGG40.
Gate Valve Extended Stem
Components 1 Body Casr iron 2 Seat Brass 3 Disc Cast iron or Ductile iron 4 Stem Stainless steel 5 Bonnet Cast iron 6 Hand wheel Ductile iron. Application 1 Face to face is accordinf to BS5163:1986 2 Flange drilled is according to BS4504/BS EN1092-2. TEST Working pressure 10bars 16bars Test pressure shell 15bars 24bars Seat 11bars 17.6bars. Dimensions DN 50 65 80 100 125 150 200 250 300 L 178 190 203 229 254 267 292 330 356 H 220 250 280 315 370 410 495 610 660 C 200 200 254 254 315 315 315 406 406 D(PN10) 165 185 200 220 250 285 340 395 445 D(PN16) 165 185 200 220 250 285 340 405 460.
