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365betͶע / self-reducing pressure reducing valve / ZZYP (M, N) type self-reducing pressure reducing valve group Consulting Hotline: 021-331007323

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ZZYP (M, N) type self-operated pressure reducing valve group

ZZYP (M, N) type self-operated pressure reducing valve group
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 :

ZZYP (M, N) type self-operated pressure reducing valve group

   Product model :


   Driving method :


   Connection form :


   Structure form :

Single, double

   Sealing material :


   Pressure range :

~4 .0 MPa 1.6 to 4.0 MPa

   Nominal diameter :

5 -DN300 DN2 5 -DN300

   Common materials :

Cast steel, stainless steel

   Technical consultation :


是国内著名〖 ZZYP(M、N)型自力式减压阀组 〗制造商,也是国内大型【 自力式调节阀 】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〖ZZYP(M、N)型自力式减压阀组 〗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 manufacturer of ZZYP (M, N) self-relief pressure reducing valve group in China, and one of the large domestic [ self-regulating valve ] manufacturers. The company has been around since its establishment. Customer demand and continuous innovation, provide the majority of agents and corporate customers with "ZZYP (M, N) self-operated pressure reducing valve group" solution, reliable quality and affordable price, so it sells all over the country, welcome new and old customers to call , Letter, we will provide you with the best quality service.

不是孤零安装在管道上,而是配合其它阀门或管道联合安装在系统中,通常有单路减压和双路减压 自力式调节阀 两种. The ZZYP (M, N) type self-regulating valve group is not installed alone on the pipeline, but is installed in the system in conjunction with other valves or pipelines. There are usually two types of pressure reducing valves: single and dual pressure reducing self-regulating valves Users can order as needed


□ Single decompression

I. Decompression for various gases and low viscosity liquids


1.Manual ball valve in front of valve 2.Pressure gauge in front of valve 3.Filter
4. Self-operated pressure reducing valve 5. Pressure gauge behind the valve 6. Manual ball valve behind the valve 7. Bypass ball valve

Remarks: 1. As required, check valve and safety valve can be installed behind the valve group (depending on whether it is allowed)
2.The bypass pipe can be arranged on the same horizontal plane or the same vertical plane as the self-operated valve according to the site space.

Decompression of medium for various high viscosity liquids


Compared with gas decompression, it is only self-supporting flip-chip

Self-powered for steam decompression


Fill the condenser with cold water before use

□ Double decompression

Two-way pressure reduction is only used in systems where the working conditions are particularly important. The system does not allow faults. It usually works all the way and closes all the way for backup. As long as the flow is sufficient, it is not necessary to open two pressure reductions at the same time to avoid the valve opening being too small. Vibration and noise affect valve life.

I. Decompression for various gases and low viscosity liquids


1.Filter 2.Manual ball valve 3.Pressure gauge 4.Self-operated pressure regulating valve 5.Pressure gauge 6.Manual ball valve

Decompression of various high viscosity liquid media

Same gas decompression, just self-operated valve can be inverted

Third, the self-acting two-way valve group for steam decompression

User-configured manual shut-off valve before installation of piece 1

□ Precautions for designing and installing pressure reducing valve

When installing, pay attention to the following points:
(1) When the valve is used in a gas or low-viscosity liquid medium, usually the ZZY self-operating pressure regulating valve is installed upright on a horizontal pipe, and it is installed upside down or obliquely when space is not allowed.
(2) When the valve is used in steam or high-viscosity liquid medium, usually the ZZY self-operated pressure regulating valve is installed on the horizontal pipe upside down. The condenser (self-operated for steam) should be lower than the actuator of the pressure regulating valve Take over before and after the valve. The condenser should be filled with cold water before use, and once every 3 months.
(3) The pressure taking point should be taken at an appropriate position of the pressure regulating valve. The pressure regulating before the valve should be greater than 2 times the pipe diameter, and the pressure regulating after the valve should be greater than 6 times the pipe diameter.
(4) In order to facilitate on-site maintenance and operation, appropriate space should be left around the pressure regulating valve.
(5) When the medium is clean gas or liquid, the pre-valve filter may not be installed.
(6) The diameter of the pressure regulating valve is too large (when DN≥100), it should have a fixed bracket.
(7) When it is confirmed that the medium is clean, piece 3 may not be installed.
(8) When the position is really not allowed, the bypass valve (manual) can be omitted (we do not recommend).
(9) After the valve group, users can choose check valve, safety valve, etc. according to their needs.
(10) The self-operated valve can be smaller than the diameter of the pipeline according to the calculated diameter, but the stop valve, shut-off ball valve, bypass valve, and filter cannot be smaller than the diameter of the pipeline.

□ Dimensions

The key of the pressure reducing valve group is to determine the total length L. For the size of the self-operated valve, see the ZZYP (M, N) chapter.
Take the control of steam as an example, the control of the total length of other media is similar, of course, the size L users can also determine as required

PN16 / 25/20/40 PN50 / 60/100/110
20 / G3 / 4 ″ 1433 1673
25 1463 1673
32 1652 1812
40 1862 2042
50 2043 2253
65 2582 2732
80 2642 2852
100 3073 3313
125 3580 3880
150 3970 4180
200 4750 4900
250 5640 5775
300 6450 6600
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