Water Pressure Release Valve for Fire Fighting The valve consists of the main valve and outside installed control pilot valve, mainly installed in the bypass of the protected water supply system in the building, guarantee the pressure of the main valve upstream water supply zone, when the pressure in the water supply pipe exceeds the pressure set by the pressure releasing valve, the pressure releasing valve is switched on to prevent pipeline and equipment from damage by pressure exceeding. This valve is mainly used in pressure releasing of the fire test circulation system in high-rise buildings, is the upgrade replacement product of the spring safety valve.   Features: 1)Reasonable and novel structure, reasonable use of the hydraulic principle to control. 2)Long service life. 3)Valve clack quick opening and slow closure, no water hammer impacting. 4)High sensitivity, safe pressure discharge. 5)Stable operation, no noise.

Water Pressure Relief Valve for Fire Fighting This valve is used for the high building fore-fighting system,To prevent the pipeline and equipment damage due to overpressure. The body uses full passage streamline design, of a small fluid resistance and a heavy flow. This valve can be used as either a pressure releasing or holding valve.  when used as the former, it can release the pressure surpassing the safe value set with the pilot valve and keep the pressure inside of the pipeline below the safe value to prevent system against danger due to an excessively high water pressure;while used as the latter,it can keep the upstream water supply pressure of the main valve over some set value,this is because water supply to the downstream can not be done,unless the upstream is higher than the set value,in order to make sure of he upstream water supply pressure of the main valve.

One Way Non Return Swing Check Valve Rubber disc check valve is mainly composed of body, cover and rubber disc three parts.Rubber disc is made by steel plate, steel bar and the reinforced nylon fabric substrate.This valve is usually installed in the outlet of the pump or inlet of water pool to prevent the water backflow and avoid damages to the pump caused by the water hammer phenomenon. The water flow in water supply or irritation networks often starts or stops abruptly causing hydraulic hammer shock, the main factor for breakage and damages of the pumps and pipes. The check valve with the rubber blocking eliminates the pump and network destruction risks because it receives and absorbs all the created high pressure functioning like the shock absorber of an automobile. The rubber disc check valve is designed to provide the best possible protection to pump installations and water networks.   Advantages: Absorbs part of the hydraulic surge waves Silent operation Smooth liquid flow Little maintenance required Applications: Irrigation Water supply networks Pump stations

Ductile Iron Flange Silent Check Valve Silent Check Valves are designed to prevent water hammer in multi-story buildings and for use in vertical turbine pump installations when pumping from a well to an elevated reservoir. Silent Check Valves are recommended for commercial and industrial HVAC applications such as heating systems and condensate return lines. The valve closes silently, is low in cost, reliable and requires no regular maintenance. When the pump stops, the spring forces disc closed against slight pump head at zero velocity which results in silent closure.

Worm Gear Ductile Iron Resilient Seated Butterfly Valve Butterfly valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates. This Resilient Seated Butterfly Valve is double flanged design which can be used for dead-end service.   Products Features Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow.   Product Parameter Size Range: 2" - 8" (50mm - 200mm) Body Style: Double Flanged Temperature Range: -20°C to 150°C) Pressure Ratings: Bidirectional Bubble-tight Shutoff: to 250 psi (17.2 Bar) Body (CWP): 250 psi (17.2 Bar) Body Materials: Ductile Iron Disc Materials: Ductile Iron Seat Materials: Bonded EPDM Applications: Wastewater, Seawater

Ductile Iron Groove Type Signal 6 Inch Water Gate Valve The signal gate valve is mainly used in the pipeline of the fire water system as a function of opening and intercepting the fluid in the pipeline, and converting the opening and closing working state into an electric signal through the signal device. The elastic seat sealing gate valve signal gate valve encapsulating the whole valve disc to generate a deformation compensation effect to achieve a good sealing effect, overcome the general gate valve sealing failure, water leakage, and rust phenomenon, more effective saving installation space.   It's mainly composed by the signal device, valve body, valve cover, disc assembly, stem, stem nut, hand wheel and other components. The annunciator is mainly composed of a transmission gear, a transmission rod and a micro switch. Gate Valve Applications Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services. Some special gate valve is used in slurry and powder product also such as knife gate valve Advantages of Gate Valve Gate valve provides good pressure drop during operation  Most of the gate valve can be used as bi-directional They are suitable for high pressure and temperature application and required less maintenance

PN16 Non Rising Stem Groove Type Gate Valve DN100 There is no upward movement of the stem in a non-rising stem type. The valve disk is threaded internally. The disc travels along the stem like a nut when the stem is rotated. You can see the image. In this type of valve, stem threads are exposed to the flow medium. Therefore, this design is used where space is limited to allow linear stem movement, and the flow medium does not cause erosion, corrosion, or wear and tear to stem material.  This type of valve also known as insider screw valve. Gate Valve Applications Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services. Some special gate valve is used in slurry and powder product also such as knife gate valve Advantages of Gate Valve Gate valve provides good pressure drop during operation  Most of the gate valve can be used as bi-directional They are suitable for high pressure and temperature application and required less maintenance

8 Inch Flange Type Signal Gate Valve The signal gate valve is mainly used in the pipeline of the fire water system as a function of opening and intercepting the fluid in the pipeline, and converting the opening and closing working state into an electric signal through the signal device. The elastic seat sealing gate valve signal gate valve encapsulating the whole valve disc to generate a deformation compensation effect to achieve a good sealing effect, overcome the general gate valve sealing failure, water leakage, and rust phenomenon, more effective saving installation space.   It's mainly composed by the signal device, valve body, valve cover, disc assembly, stem, stem nut, hand wheel and other components. The annunciator is mainly composed of a transmission gear, a transmission rod and a micro switch. Gate Valve Applications Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services. Some special gate valve is used in slurry and powder product also such as knife gate valve Advantages of Gate Valve Gate valve provides good pressure drop during operation  Most of the gate valve can be used as bi-directional They are suitable for high pressure and temperature application and required less maintenance    Product Parameter   DN L H H1 W C n-D E T F 50 178 233 123 203 125 4-φ19 165 19 3 65 190 233 93 203 145 4-φ19 185 19 3 80 203 270 100 203 160 8-φ19 200 20 3 100 229 322 110 203 180 8-φ19 220 20 3 125 254 355 125 280 210 8-φ19 250 20 3 150 267 401 143 280 240 8-φ19 285 20 3 200 292 516 170 330 295 8-φ23 340 21 3 250 330 638 203 382 355 12-φ23 406 26 3 300 356 717 230 420 410 12-φ28 460 26 4 350 381 844 260 420 470 16-φ28 520 26.5 4 400 406 935 282 420 525 16-φ31 580 28 4

Ductile Iron 4 Inch Groove Type OS&Y Rising Stem Gate Valve For a rising stem valve, the stem will go up while opening the valve and move down when you close the valve. You can see in the image. In inside screw design, the threaded portion of the stem is in contact with the flow medium and when you open the valve, handwheel rise with the stem. Whereas in the case of outside screw design, the only smooth portion is exposed to the flow medium and stem will rise above the handwheel. This type of valve is also known as OS & Y valve.  OS & Y means outside steam and York.   Products Features - Precision-machined valve stem, reduces operating torque. - Non-toxic powder epoxy resin spraying on botn inside and outside of the valve to enhance corrosion resistance and improve water quality. - The valve plate is covered with rubber both inside and outside to guaranteed good sealing. It has strong connection to avoid fall off after long-term use. - Thrust bearings reduce frictional resistance and reduce operating torque.   Product Parameter   DN 50 65 80 100 125 150 200 250 300 350 400 D 57 60 76 178 322 114 133 159 219 273 325 377 426 140 165 A1 14.5 14.5 14.5 16 16 16 19 19 19 25 25 BA 9.5 9.5 9.5 9.5 9.5 9.5 13 13 13 13 13 C 2.2 2.2 2.2 2.2 2.2 2.2 2.5 2.5 3.3 3.3 5.5 Z81X     L 145 180 180 180 200 240 275 325 355     H 325 455 455 455   500 620 750 800     D0 180 200 200 200   240 320 320 400    

Ductile Iron 6 Inch Flange OS&Y Gate Valve One type of valve commonly used to control water flow to fire sprinkler systems is known as an OS&Y gate valve. OS&Y means “outside stem and yoke” or "outside screw and yoke".   OS&Y gate valves operate by opening and closing via a gate, which lowers into or rises out of the valve. Raising the gate allows water to flow through the valve while lowering the gate cuts off the water flowing through the valve. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.   Products Features - Precision-machined valve stem, reduces operating torque. - Non-toxic powder epoxy resin spraying on botn inside and outside of the valve to enhance corrosion resistance and improve water quality. - The valve plate is covered with rubber both inside and outside to guaranteed good sealing. It has strong connection to avoid fall off after long-term use. - Thrust bearings reduce frictional resistance and reduce operating torque.   Product Parameter   DN D D1 NO.×NXφ L H(Close) H(Open) 40 150 110 4×18 178 322 374 50 165 125 4×18 178 322 374 65 185 145 4×18 190 332 395 80 200 160 8×18 203 350 429 100 220 180 8×18 229 420 524 125 250 210 8×18 254 581 721 150 285 240 8×22 267 581 736 200 340 295 12×22 292 736 942 250 405 355 12×26 325 880 1013 300 460 410 12×26 356 1009 1117 350 520 470 16×26 385 1300 1655 400 580 525 16×30 406 1380 1805 450 640 585 20×30 432     500 725 650 20×33 457     600 840 770 20×36 508    

Ductile Iron Non Rising Stem Flange Type Gate Valve There is no upward movement of the stem in a non-rising stem type. The valve disk is threaded internally. The disc travels along the stem like a nut when the stem is rotated. You can see the image. In this type of valve, stem threads are exposed to the flow medium. Therefore, this design is used where space is limited to allow linear stem movement, and the flow medium does not cause erosion, corrosion, or wear and tear to stem material.  This type of valve also known as insider screw valve. Gate Valve Applications Gate valves are used in almost all fluid services such as air, fuel gas, feedwater, steam, lube oil, hydrocarbon, and all most any services. Some special gate valve is used in slurry and powder product also such as knife gate valve Advantages of Gate Valve Gate valve provides good pressure drop during operation  Most of the gate valve can be used as bi-directional They are suitable for high pressure and temperature application and required less maintenance    Product Parameter   DN L H H1 W C n-D50 E T F 50 178 233 123 203 125 4-φ19 165 19 3 65 190 233 93 203 145 4-φ19 185 19 3 80 203 270 100 203 160 8-φ19 200 20 3 100 229 322 110 203 180 8-φ19 220 20 3 125 254 355 125 280 210 8-φ19 250 20 3 150 267 401 143 280 240 8-φ19 285 20 3 200 292 516 170 330 295 8-φ23 340 21 3 250 330 638 203 382 355 12-φ23 406 26 3 300 356 717 230 420 410 12-φ28 460 26 4 350 381 844 260 420 470 16-φ28 520 26.5 4 400 406 935 282 420 525 16-φ31 580 28 4

Manual Operated Ductile Iron 4 Inch Butterfly Valve DN200 Butterfly valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates.   Products Features Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow.   Product Parameter Model A C D ZSXF-50-D(G) 90 55 60.3 ZSXF-65-D(G) 90 65 76.1 ZSXF-80-D(G) 100 70 88.9 ZSXF-100-D(G) 110 87 114.3 ZSXF-125-D(G) 110 100 139.7 ZSXF-150-D(G) 110 115 165.1 ZSXF-200-D(G) 134 150 219.1

Ductile Iron Wafer Worm Gear Butterfly Valve Butterfly valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates.   Products Features Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Product Parameter   Model A C D NXQ ZSXF-50-D 46 68 125 4X18 ZSXF-65-D 48 78 145 4X18 ZSXF-80-D 50 90 160 4X18 ZSXF-100-D 56 108 180 4X18 ZSXF-125-D 58 120 210 4X18 ZSXF-150-D 60 130 240 4X22 ZSXF-200-D 65 162 295 4X22  

Manual Operated Ductile Iron Signal Fire Valve Butterfly The signal butterfly valve is one of the important accessories in the pipeline of a fire sprinkler system. Its structure is Groove type. As the control valve of the fire sprinkler system, it has the function of transmitting the valve's opening and closing state to the control department to trace the misoperation and improve the safety of the system. On top of the valve has a signal device connect with stem directly. Under working condition when the valve is mistakenly closed by 25% (1/4 of full opening), the signal device will output a signal to the fire control center. So that relevant personnel can check the situation in time. The signal butterfly valve can intuitive, clear and reliable reflect the working status of the pipeline system, so widely used in firefighting systems.   Products Features 1) Small and lightweight, easy to disassemble and repair, and can be installed at any position. 2) The structure is simple and compact, 90° rotation open and close quickly. 3) The operating torque is small, labor-saving and light. 4) Complete sealing, water test leakage is zero. 5) Can be applied to a variety of medium. 6) The flow characteristics tend to be straight and the adjustment performance is good. 7) The number of opening and closing tests is up to 10,000 times, the service life is long. 8) Pipes that use gate valves, check valves (spherical shut-off valves), globe valves, plug valves, hose valves, and diaphragm valves, especially in high-rise building fire protection systems and pipeline systems that require showing the valve switching status. This valve can be a good alternative.   Product Parameter Model A B C D ZSXF-50-D(G) 90 205 55 60.3 ZSXF-65-D(G) 90 220 65 76.1 ZSXF-80-D(G) 100 220 70 88.9 ZSXF-100-D(G) 110 269 87 114.3 ZSXF-125-D(G) 110 280 100 139.7 ZSXF-150-D(G) 110 295 115 165.1 ZSXF-200-D(G) 134 352 150 219.1

Gear Operated Concentric Wafer Fire Signal Butterfly Valve The signal butterfly valve is one of the important accessories in the pipeline of a fire sprinkler system. Its structure is Groove type. As the control valve of the fire sprinkler system, it has the function of transmitting the valve's opening and closing state to the control department to trace the misoperation and improve the safety of the system. On top of the valve has a signal device connect with stem directly. Under working condition when the valve is mistakenly closed by 25% (1/4 of full opening), the signal device will output a signal to the fire control center. So that relevant personnel can check the situation in time. The signal butterfly valve can intuitive, clear and reliable reflect the working status of the pipeline system, so widely used in firefighting systems.   Products Features 1) Small and lightweight, easy to disassemble and repair, and can be installed at any position. 2) The structure is simple and compact, 90° rotation open and close quickly. 3) The operating torque is small, labor-saving and light. 4) Complete sealing, water test leakage is zero. 5) Can be applied to a variety of medium. 6) The flow characteristics tend to be straight and the adjustment performance is good. 7) The number of opening and closing tests is up to 10,000 times, the service life is long. 8) Pipes that use gate valves, check valves (spherical shut-off valves), globe valves, plug valves, hose valves, and diaphragm valves, especially in high-rise building fire protection systems and pipeline systems that require showing the valve switching status. This valve can be a good alternative.   Product Parameter   Model A B C D NXQ ZSXF-50-D 46 265 68 125 4X18 ZSXF-65-D 48 275 78 145 4X18 ZSXF-80-D 50 285 90 160 4X18 ZSXF-100-D 56 300 108 180 4X18 ZSXF-125-D 58 315 120 210 4X18 ZSXF-150-D 60 330 130 240 4X22 ZSXF-200-D 65 380 162 295 4X22

Groove Type Butterfly Valve with Handles Butterfly valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates.   Products Features Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow.