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Z44H, P48H quick blowdown valve


Z44H, P48H quick blowdown valve
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  Product name : Quick blowdown valve Product model : Z44H, P48H
   Driving method : Manual Connection form : Flange
   Structure form : Piston    Sealing material : stainless steel
   Pressure range : 1.6-4.0Mpa    Nominal diameter : DN25-DN80
   Common materials : Carbon steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 Z44H、P48H快速排污阀 〗制造商,也是国内大型【 排污阀 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖 Z44H、P48H快速排污阀 〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of [ Z44H, P48H quick blowdown valve ] and one of the large domestic [ splash valve ] manufacturers. Since its establishment, the company has always focused on customer needs and continued innovation for the majority Agents and corporate customers provide solutions of [ Z44H, P48H quick blowdown valve ], which are reliable in quality and affordable in price, so they sell well all over the country. Welcome new and old customers to call us and send us a letter. We will provide you with the best service.

快速 排污阀概述 I. Overview of Z44H, P48H quick blowdown valve

Z44 quick blowdown valve

是由闸门演变而来的,利用齿轮旋转90度带动阀杆提升实现开启和关闭的目的。 The fast blowdown valve is evolved from the gate. The rotation of the gear 90 degrees drives the valve stem to lift to achieve the purpose of opening and closing. Small torque, easy operation and quick opening and closing.

不仅结构简单、密封性好,而且体积小、重量轻、材料耗用少、安装尺寸小,特别是驱动,排污阀pn≤20mpa高压锅炉的定期排污,可以五个通道同时排污,也可以一个通道排污,也有 自动排气阀 功能。 The quick blowdown valve is not only simple in structure and good in tightness, but also small in size, light in weight, low in material consumption, and small in installation size, especially in the drive. The blowdown valve pn ≤ 20mpa is used for regular blowdown of high pressure boilers, which can simultaneously discharge five channels. Pollution can be done in one channel, and it also has an automatic exhaust valve function.

快速排污阀结构简述 Structure of Z44H, P48H quick blowdown valve

1. The valve body and bonnet are connected by a clamp, which has a compact structure, convenient disassembly, and easy installation. The branch pipe is welded.

2. Adopt pressure self-tightening sealing structure. The sealing ring is made of asbestos packing. The higher the medium pressure, the better the sealing performance.

3. The medium flows from the branch pipe and drains downwards.

4. The valve disc is a piston structure and is boronized. Resistant to corrosion and erosion. long lasting.

快速排污阀安装说明 Three, Z44H, P48H quick sewage valve installation instructions

1. The multi-port blowdown valve must be installed vertically on a horizontal pipe.

2. Clean the piping before installing the valve.

1. Turn the handwheel valve stem counterclockwise to drive the valve core gradually upward, the sealing surface is disengaged, and the flow guide seat on the valve core is gradually moved out of the inner hole of the valve seat, forming a narrow gap, and the medium passes through the symmetrical throttle hole on the valve seat. Entering the valve seat, a small amount of medium can flow out through the slit, gradually reducing the system pressure.

2. Continue to turn the handwheel counterclockwise, the valve core moves upward, the orifice on the guide seat moves out of the valve seat cavity, and more medium passes through the guide seat and the valve sleeve to be discharged smoothly after throttling.

3. Continue to turn the handwheel counterclockwise, the valve core moves up to the fully open position. At this time, the pressure of the medium is greatly reduced, and a large amount of impurities can be directly discharged from the orifice of the valve sleeve, and a vortex is formed at the inverted seal seat. Clean the sealing surface to prevent impurities from adhering to the sealing surface.

Valve closing process:

4. Rotate the valve clockwise, the valve stem moves the valve core downward. At this time, the blowdown has ended, the system pressure is low, the area of the orifice on the valve sleeve is gradually reduced, the guide sleeve is close to the valve seat, and the medium flow direction is changed. After the throttling, the sealing surface is passed through the valve core and the valve at a certain speed, and the cleaning strength of the sealing surface is gradually strengthened.

5. Continue turning the handwheel, the deflector seat on the valve core enters the inner hole of the valve seat, forming a narrow throttling. As the sewage is nearing the end, the medium has less impurities, and the narrow gap between the guide sleeve and the valve seat prevents the remaining The small impurities flow into the sealing surface, and the medium quickly flows out through the narrow gap, thoroughly cleaning the sealing surface, and ensuring zero leakage when the sealing pair contacts.

6. Continue turning the handwheel, the valve core and the seal seat contact. Achieve sealing.

Blowdown valve standard, blowdown valve size, blowdown valve function, blowdown valve principle; blowdown valve body and bonnet are clamped, the blowdown valve is compact, the blowdown valve is easy to remove, the blowdown valve is easy to install, and the blowdown valve branch pipe is welded . The drain valve adopts a pressure self-tight seal structure. The seal ring of the drain valve is made of asbestos packing. The higher the pressure of the drain valve medium, the better the sealing performance. Sewage valve media flows from the branch pipe and drains downwards. The drain valve disc is of a piston type and is boronized. The drain valve has a long service life due to corrosion resistance and erosion resistance.

Fourth, Z44 quick sewage valve features

快速排污阀是由闸阀演变而来的,利用齿轮转90℃带动阀杆提升实现开启和关闭的目的。 Z44H and P48H quick blowdown valves are evolved from gate valves. The gear is turned to 90 C to drive the valve stem to lift and open and close. Z44H blowdown valve not only has simple structure and good sealing performance, but also has small installation size, less material consumption, light weight and small volume, especially small driving torque, easy operation, and easy to achieve quick opening and closing.

快速排污阀主要性能规范 Five, Z44H, P48H quick blowdown valve main performance specifications

Type Nominal pressure Test pressure Ps (MPa) Applicable medium Applicable medium (℃)
Z / P44 48H-16C 1.6 2.4 1.8 steam ≤250
Z / P44 48H-16      
Z / P44 48H-25C 2.5 3.8 2.8   
Z / P44 48H-25      ≤425
Z / P44 48H-40C 4.0 6.0 4.4   
Z / P44 48H-40      ≤250

快速排污阀主要零件材料 Material of main parts of Z44H, P48H quick blowdown valve

Part Name Body and bonnet Valve seat, gate Valve stem Gear shaft Filling Pad Span
Z / P44 48H-16C Z / P44 48H-25 Z / P44 48H-40 Cast steel Chrome stainless steel Chrome stainless steel Chrome stainless steel Oil-immersed graphite asbestos packing Rubber asbestos sheet Ductile iron

快速排污阀主要尺寸及重量 Seven, Z44H, P48H quick blowdown valve main size and weight

Nominal pressure PN (MPa) Nominal diameter DN (mm)   Weight (kg)
L D D1 D2 D6 b ZΦd H LO  
1.6 25 160 115 85 65 - 14 4-Φ14 160 180 10
32 200 135 100 78 - 16 4-Φ18 180 200 11
40 230 145 110 85 - 16 4-Φ18 220 220 16
50 250 160 125 100 - 16 4-Φ18 230 240 20
65 265 180 145 120 - 18 4-Φ18 250 280 28
80 280 195 160 135 - 20 8-Φ18 280 350 38
2.5 25 160 115 85 65 - 16 4-Φ14 160 180 10
32 200 135 100 78 - 18 4-Φ18 180 200 11
40 200 145 110 85   18 4-Φ18 220 220 16
50 250 160 125 100 - 20 4-Φ18 230 240 20
65 265 180 145 120 - twenty two 8-Φ18 250 280 28
80 280 195 160 135 - twenty two 8-Φ18 280 350 38
4.0 25 160 115 85 65 58 16 4-Φ14 160 180 10
32 180 135 100 78 66 18 4-Φ18 180 200 11
40 230 145 110 85 76 18 4-Φ18 220 220 16
50 250 160 125 100 88 20 4-Φ18 230 240 20
65 265 180 145 125 110 twenty two 8-Φ18 250 280 28
80 280 195 160 135 121 twenty two 8-Φ18 280 350 38
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