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DHH44 micro-resistance slow closing muffler check valve


DHH44 micro-resistance slow closing muffler check valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

Reasonable price: efficient internal cost control, reducing expenses and benefiting customers!

Fast delivery: advanced production lines, sufficient stocking, shortening the delivery time!
Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process

 

  Product name : Micro-resistance slow closing muffler check valve Product model : DHH44
   Driving method : Manual Connection form : Flange
   Structure form : Full open    Sealing material : Nitrile rubber
   Pressure range : ~1.6 MPa 1.0 to 1.6 MPa    Nominal diameter : DN50-DN800
   Common materials : Gray cast iron, carbon steel    Technical consultation : 021-31007323

是国内著名〖 DHH44微阻缓闭消声止回阀 〗制造商,也是国内大型【 止回阀 】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〖DHH44微阻缓闭消声止回阀 〗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 [ DHH44 micro-resistance slow-closing muffler check valve ] and one of the large domestic [ check valve ] manufacturers. Continue to innovate and provide DHH44 micro-resistance slow closing muffler check valve solution for the majority of agents and corporate customers . The quality is reliable and the price is affordable. So it sells all over the country. Provide the best service.

I. Introduction of DHH44 micro-resistance slow-closing muffler check valve

DHH44微阻缓闭消声止回阀 主要用于工业、城市给排水管道和高层住宅、高级宾涫、加压输水泵的出口处。 The DHH44 micro-resistance slow-closing muffler check valve produced by our factory is mainly used in industrial, urban water supply and drainage pipelines and high-rise residences, high-end guest houses, and outlets of pressurized water pumps. Fully consider the requirements of the use environment in the design. The use of a sloping plate structure has selected no vibration, no noise, and stable operation, ensuring that the hotel and residential environment is quiet and has energy-saving effects. By delaying the shutdown, local backflow of water is leaked into the system, thereby greatly reducing the hydraulic pressure of the backflow of the pump when it is stopped, and eliminating the occurrence of destructive water hammer peaks. The seal is made of nitrile rubber. 密封性能好、减震耐磨、使用寿命长、维修方便等特点。 HH46 type micro-resistance slow-closing butterfly check valve has good sealing performance, shock absorption and wear resistance, long service life and convenient maintenance.

 
DHH44 micro-resistance slow closing muffler check valve structure diagram
 
Material of DHH44 micro-resistance slow-closing muffler check valve
 

Part Name

material

Valve body

Gray cast iron, carbon steel

Butterfly

Carbon steel

Sealing surface

Nitrile rubber

Valve stem

stainless steel

Buffer cylinder

Stainless


Third, the main technical parameters of DHH44 micro-resistance slow closing muffler check valve
 

model

Nominal pressure

Test pressure Ps (MPa)

Working temperature (℃)

Applicable medium

case

seal

DHH44X
DHH44H

1.0

1.5

1.1

0-80 ℃

Clean water, sewage,
Sea water, mud water

1.6

2.4

1.75


(法兰连接尺寸:按JB/T79 94标准) 4. The main dimensions of DHH44 micro-resistance slow-closing muffler check valve (flange connection size: according to JB / T79 94 standard)
 

Nominal diameter
DN (mm)

Size (mm)

L

H

B

200

230

550

450

250

250

630

520

300

270

690

590

350

290

780

670

400

310

860

750

450

330

910

780

500

350

980

850

600

390

1070

970

700

430

1220

1080

800

470

1320

1200

900

510

1430

1300

1000

550

1550

1450

1200

630

1800

1670

1400

710

1980

1880

1600

790

2150

1950

2000

950

2550

2450

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