Marine Center Type Manual Turbine Butterfly Valve GB3036-94C

Shanghai Yunlong Marine Valve primarily produces various specifications of marine butterfly valves, gate valves, globe valves, ball valves, needle valves, control valves, throttle valves, plunger valves, check valves, safety valves, pressure reducing valves, self-closing valves, quick-closing valves, globe check valves, hose valves, plug valves, mud boxes, sea valves, seawater filters, oil filters, anti-splash valves, air caps, sounding self-closing valves, hydraulic control valves, marine valves,

Butterfly valves, marine butterfly valves, marine wafer-type butterfly valves, marine flanged butterfly valves, marine double-flanged butterfly valves, marine wafer-type handle-operated butterfly valves, marine wafer-type worm gear butterfly valves, marine wafer-type spiral butterfly valves, marine wafer-type hydraulic butterfly valves, marine wafer-type hydraulic control butterfly valves, marine wafer-type remote control butterfly valves, marine wafer-type hydraulic actuated butterfly valves, marine wafer-type electric butterfly valves, marine wafer-type pneumatic butterfly valves, marine flanged handle-operated butterfly valves, marine flanged worm gear butterfly valves, marine flanged spiral butterfly valves, marine flanged hydraulic butterfly valves, marine flanged hydraulic control butterfly valves, marine flanged remote control butterfly valves, marine flanged hydraulic actuated butterfly valves, marine flanged electric butterfly valves, marine flanged pneumatic butterfly valves, marine double-flanged handle-operated butterfly valves, marine double-flanged worm gear butterfly valves, marine double-flanged spiral butterfly valves, marine double-flanged hydraulic butterfly valves, marine double-flanged hydraulic control butterfly valves, marine double-flanged remote control butterfly valves, marine double-flanged hydraulic actuated butterfly valves, marine double-flanged electric butterfly valves, marine double-flanged pneumatic butterfly valves, marine center-type wafer handle butterfly valves, marine center-type wafer worm gear butterfly valves, marine center-type wafer spiral butterfly valves, marine center-type wafer hydraulic butterfly valves, marine center-type wafer hydraulic control butterfly valves, marine center-type wafer remote control butterfly valves, marine center-type wafer hydraulic actuated butterfly valves, marine center-type wafer electric butterfly valves, marine center-type wafer pneumatic butterfly valves, marine center-type flanged handle butterfly valves, marine center-type flanged worm gear butterfly valves, marine center-type flanged spiral butterfly valves, marine center-type flanged hydraulic butterfly valves, marine center-type flanged hydraulic control butterfly valves, marine center-type flanged remote control butterfly valves, marine center-type flanged hydraulic actuated butterfly valves, marine center-type flanged electric butterfly valves, marine center-type flanged pneumatic butterfly valves, marine center-type double-flanged handle butterfly valves, marine center-type double-flanged worm gear butterfly valves, marine center-type double-flanged spiral butterfly valves, marine center-type double-flanged hydraulic butterfly valves, marine center-type double-flanged hydraulic control butterfly valves, marine center-type double-flanged remote control butterfly valves, marine center-type double-flanged hydraulic actuated butterfly valves, marine center-type double-flanged electric butterfly valves, marine center-type double-flanged pneumatic butterfly valves, marine double-eccentric wafer handle butterfly valves, marine double-eccentric wafer worm gear butterfly valves, marine double-eccentric wafer spiral butterfly valves, marine double-eccentric wafer hydraulic butterfly valves, marine double-eccentric wafer hydraulic control butterfly valves, marine double-eccentric wafer remote control butterfly valves, marine double-eccentric wafer hydraulic actuated butterfly valves, marine double-eccentric wafer electric butterfly valves, marine double-eccentric wafer pneumatic butterfly valves, marine double-eccentric flanged handle butterfly valves, marine double-eccentric flanged worm gear butterfly valves, marine double-eccentric flanged spiral butterfly valves, marine double-eccentric flanged hydraulic butterfly valves, marine double-eccentric flanged hydraulic control butterfly valves, marine double-eccentric flanged remote control butterfly valves, marine double-eccentric flanged hydraulic actuated butterfly valves, marine double-eccentric flanged electric butterfly valves, marine double-eccentric flanged pneumatic butterfly valves, marine double-eccentric double-flanged handle butterfly valves, marine double-eccentric double-flanged worm gear butterfly valves, marine double-eccentric double-flanged spiral butterfly valves, marine double-eccentric double-flanged hydraulic butterfly valves, marine double-eccentric double-flanged hydraulic control butterfly valves, marine double-eccentric double-flanged remote control butterfly valves, marine double-eccentric double-flanged hydraulic actuated butterfly valves, marine double-eccentric double-flanged electric butterfly valves, marine double-eccentric double-flanged pneumatic butterfly valves,

Our company produces marine wafer-type signal butterfly valves｜fire-fighting butterfly valves｜marine protective signal butterfly valves GB/T3036-94

Material: Stainless steel, cast steel, alloy steel

Nominal pressure: 1.0MP-6.4MPa

Nominal diameter: DN50-DN500

Current, voltage: AC/DC universal

Applicable medium: Water

Suitable temperature: ≤80℃

Purpose: The top of the signal butterfly valve is equipped with an electric signal device for valve opening and closing. When the valve is mistakenly closed by 25% (1/4 of the full opening), the electric signal device outputs a signal of mistaken closure to the fire control center. Therefore, this butterfly valve is a **** supporting product for automatic fire sprinkler systems.

Structural features and working principle

The electric signal device of this butterfly valve is designed at the top of the worm and worm gear drive, directly connected to the valve stem. Inside the precision fully enclosed electromechanical device, there is a mechanical indicator for valve opening, imported electrical components, and anti-rust mechanical parts. The output signal is stable and reliable.

Purpose and features of marine double-eccentric butterfly valve GB/T3037-94:

Product name: Marine double-eccentric butterfly valve GB/T3037-94

Connection method; Flange; Wafer type; Lug type.

Structure type; Centerline type, double eccentric type

Product type: Type A, Type B, Type AS, Type BS, Type CS, Type SX, Type ES, Type QS, Type DS, Type FSB, Type FA, Type FB, Type FD, Type FQ

Product diameter: DN40-1200

Product pressure: 5K, 10K, 16K, 0.6, 1.0, 1.6Mpa, 125LB, 150LB, 300LB.

Valve body material: Cast iron, cast steel, stainless steel, bronze.

Valve disc material; Stainless steel, ductile iron, aluminum bronze, cast steel.

Valve seat material; NBR, PTFE, FKM

Product introduction: Manufacturing standards: Chinese GB, Mechanical Department JB, Chemical standard HG, American standard API, ANSI, German standard DIN, Japanese JIS, JPI, British standard BS. Valve body material: Copper, cast iron, cast steel, carbon steel, WCB, WC6, WC9, 20#, 25#, forged steel, A105, F11, F22, stainless steel, 304, 304L, 316, 316L, chrome-molybdenum steel, low-temperature steel, titanium alloy steel, etc. Working pressure 1.0Mpa-50.0Mpa. Working temperature: -196℃-650℃. Connection method: Internal thread, external thread, flange, welding, butt welding, socket welding, clamp, clamp. Drive method: Manual, pneumatic, hydraulic, electric.

Marine butterfly valves, marine manual butterfly valves, marine spiral butterfly valves, marine lug-type butterfly valves, marine electric butterfly valves, marine pneumatic butterfly valves, marine hydraulic butterfly valves, marine worm gear butterfly valves, marine stainless steel butterfly valves, marine bronze butterfly valves, marine flanged butterfly valves, marine double-eccentric butterfly valves.



Introduction to lug-type butterfly valves:

1. Valve body material: Gray cast iron, ductile iron, cast steel, aluminum alloy, stainless steel, etc.

2. Valve disc material: Duplex stainless steel, nylon 11 plate, galvanized plate, aluminum bronze

3. Valve seat: NBR, EPDM, VITON, PTFE, R-PTFE

2. Usage requirements

1. Nominal diameter: DN50-1000 (mm)

2. **** Nominal pressure: 1.6Mpa

3. Applicable temperature: -50℃—235℃

4. Drive form: Pneumatic (limit switch, solenoid valve, handwheel, ****)

3. Product characteristics

1. Extruded high-strength aluminum cylinder, finely ground inner surface and hard anodized treatment, low friction coefficient, long service life, strong * corrosion resistance.

2. Double-piston gear rack design, compact structure, symmetrical installation position, easy to change output shaft direction, long service life, fast action.

3. Combined pre-load coated spring, long working life.

4. * Gear and rack, small meshing clearance, high precision, large output power.

5. Stainless steel fasteners, safe and beautiful, strong * corrosion resistance.

6. Beautiful compact modern design, multiple specifications of series products, making selection more economical and convenient.

7. * Fully compliant with **** standards: Output shaft groove, screw hole; Top mounting hole dimensions comply with NAMUR standard; Air source interface dimensions comply with NAMUR standard; Bottom mounting hole dimensions comply with ISO5211, DIN3337 standards, convenient for installing solenoid valves, limit switches, and other accessories.

4. Versatility

Widely used in pipelines of ships, petroleum, chemical, food, papermaking, water and electricity, water supply and drainage, metallurgy, energy and other systems, suitable for various corrosive gases, liquids, semi-liquids, and solid powder media.

Extended stem butterfly valves, also called flap valves, are a type of simple regulating valve, also used for switch control of low-pressure pipeline media.

Extended stem butterfly valves refer to valves where the closing element (disc or butterfly plate) is a disc that rotates around the valve shaft to achieve opening and closing, mainly used for cutting off and throttling in pipelines. The opening and closing element of an extended stem butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve opening, closing, or regulation. The full open to full close of an extended stem butterfly valve is usually less than 90°. Extended stem butterfly valves and the valve stem itself have no self-locking ability. To * the butterfly plate, a worm gear reducer must be installed on the valve stem. Using a worm gear reducer not only gives the butterfly plate self-locking ability, allowing it to stop at any position, but also **** the valve's operating performance. Industrial butterfly valves are characterized by high temperature resistance, suitable for higher pressure ranges, large nominal diameter, valve body made of carbon steel, and valve disc sealing ring made of metal ring instead of rubber ring. Large high-temperature butterfly valves are made of steel plate welding, mainly used for high-temperature media in flue gas ducts and gas pipelines. Under normal conditions, the service life of the sealing seat is 15-20 years for rubber and 80-90 years for metal. The operating torque of extended stem butterfly valves varies with the opening degree and the direction of valve opening and closing. For horizontal butterfly valves, especially large-diameter valves, the torque generated by the water head difference on the upper and lower parts of the valve shaft cannot be ignored.

In addition, when a elbow is installed on the inlet side of the valve, creating biased flow, the torque will increase. When the valve is at intermediate opening, due to the action of hydrodynamic torque, the operating mechanism needs to be self-locking. Butterfly valves have the characteristics of simple structure, small size, light weight, material saving, small installation size, quick switching, 90° reciprocating rotation, low driving torque, etc., used for cutting off, connecting, and regulating the medium in pipelines, with good fluid control characteristics and closing sealing performance. Butterfly valves can transport slurry, with minimal liquid accumulation at the pipeline port. Under low pressure, good sealing can be achieved. Good regulation performance. The streamlined design of the butterfly plate results in low fluid resistance loss, making it an energy-saving product. The valve stem is a through-stem structure, tempered, with good comprehensive mechanical properties and * corrosion and * scratch resistance. When the butterfly valve opens and closes, the valve stem only rotates without lifting, so the valve stem packing is not easily * and the seal is reliable. Fixed with the butterfly plate with a taper pin, the external end is designed to prevent冲出, to avoid the valve stem bursting out in case of accidental breakage at the connection between the valve stem and butterfly plate. Connection methods include flange connection, wafer connection, butt weld connection, and lug wafer connection. Drive forms include manual, worm gear drive, electric, pneumatic, hydraulic, electro-hydraulic linkage and other actuators, enabling remote control and automated operation.

Advantages of extended stem butterfly valves

1. Easy and quick opening and closing, labor-saving, low fluid resistance, suitable for frequent operation.

2. Simple structure, small size, light weight.

3. Can transport slurry, with minimal liquid accumulation at the pipeline port.

4. Under low pressure, good sealing can be achieved.

5. Good regulation performance.