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WEYO AUTO TECH

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China Urban Gas Petroleum Chemical Industry Control Valves Self Operated Pressure
China Urban Gas Petroleum Chemical Industry Control Valves Self Operated Pressure

  1. China Urban Gas Petroleum Chemical Industry Control Valves Self Operated Pressure

Urban Gas Petroleum Chemical Industry Control Valves Self Operated Pressure

  1. MOQ: Negotiable
  2. Price: Based on oroiect reauirements
  3. Get Latest Price
Payment Terms L/C, T/T
Supply Ability 5000 units per month for small parts. 1000 units per month for large parts
Delivery Time 7 - 15 days for small orders, 15 - 30 days for large orders
Packaging Details Customized packaging to protect products
Brand Name WEYO
Model Number ZZYP
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C, T/T Supply Ability 5000 units per month for small parts. 1000 units per month for large parts
Delivery Time 7 - 15 days for small orders, 15 - 30 days for large orders Packaging Details Customized packaging to protect products
Brand Name WEYO Model Number ZZYP
Place of Origin China
High Light Petroleum Control ValvesChemical Industry Control ValvesUrban Gas self acting temperature control valves

ZZYP (N) Self-operated Pressure Regulating Valve

 

The ZZYP (N) type direct-acting self-operated pressure regulating valve is composed of a valve body, a valve core, a valve seat and an actuator. It is an energy-saving product that automatically regulates pressure by utilizing the pressure change of the regulated medium itself. By installing the valve assembly in the forward or reverse direction, the pressure control before and after the valve can be realized. It is widely used in automatic control systems of industrial production processes such as natural gas extraction and transportation, urban gas, petroleum, chemical industry, metallurgy, electric power, light industry and textile.

 

a. Technical Parameters of ZZYP
Nominal diameter
DN(mm)
20 25 32 40 50 65 80 100 125 150 200
rated flow coefficient
Kv
6.3 8 16 20 32 50 80 125 160 320 450
rated stroke (mm) 8 8 10 10 14 20 20 25 40 40 50
nominal pressure MPa 1.64.06.4
pressure staging range
KPa
15~5040~8060~10080~140120~180160~220200~260
240~300280~350330~400380~450430~500480~560540~620
600~700680~800780~900880~1000
flow characteristic Quick opening
regulation accuracy (%) ±5
operating temperature (℃) ≤+350
leakage class ≤10⁻⁴ × rated capacity
pressure reduction ratio maximum 10, minimum 1.25

 

b. Technical Parameters of ZZYN
Nominal diameter
DN(mm)
25 32 40 50 65 80 100 125 150 200 250
rated flow coefficient
Kv
10 16 25 40 63 100 160 250 400 630 1000
rated stroke (mm) 8 10 10 14 20 20 25 40 40 50 60
nominal pressure MPa 1.64.06.4
pressure staging range
KPa
15~5040~8060~10080~140120~180160~220200~260
240~300280~350330~400380~450430~500480~560540~620
600~700680~800780~900880~1000
flow characteristic Quick opening
regulation accuracy (%) ±5
operating temperature (℃) ≤+350
leakage class ≤10⁻⁴ × rated capacity
pressure reduction ratio maximum 10, minimum 1.25

 

Operating Principle

a. Post-valve pressure regulation: The valve body assembly is in a forward-mounted structure. The medium flows through the valve core and valve seat in the direction indicated by the arrow on the valve body, flows out after decompression, and at the same time, this pressure is transmitted to the actuator diaphragm chamber through the control pipeline, generating a downward thrust that balances with the set value of the balance spring, thus stabilizing the valve core opening at the position corresponding to the post-valve pressure. If changes in the pre-valve pressure or post-valve load cause a change in the post-valve pressure, disrupting the balance, the valve core opening will adjust accordingly through feedback via the control pipeline, restoring the post-valve pressure to its original set value and ensuring a constant post-valve pressure output.

 
b. Pre-valve pressure regulation: The valve body assembly is in a reverse-mounted structure. The medium flows through the valve core and valve seat in the direction indicated by the arrow on the valve body, and at the same time, the pre-valve medium pressure is transmitted to the actuator diaphragm chamber through the control pipeline, generating a downward thrust that balances with the set value of the balance spring, thus stabilizing the valve core opening at the position corresponding to the pre-valve pressure. If changes in the pre-valve pressure or post-valve load cause a change in the pre-valve pressure, disrupting the balance, the valve core opening will adjust accordingly through feedback via the control pipeline, restoring the pre-valve pressure to its original set value and thus maintaining a constant pre-valve pressure.

 

Overall dimensions

 

Nominal diameter DN 25 32 40 50 65 80 100 125 150 200 250
H 520 530 570 580 740 780 800 900 930 1010 1310
H1 117 120 139 144 188 208 220 268 278 320 420
L 184 200 222 254 276 298 352 410 451 600 673
Pressure regulating range
KPa
15~120 ΦA=325 ΦA=362
80~250 ΦA=230 ΦA=325
200~500 ΦA=180 ΦA=230
450~700 ΦA=150 ΦA=180
650~1000 ΦA=120 ΦA=150

 

Ordering Information
  1. Product model
  2. Nominal diameter
  3. Nominal pressure
  4. Valve body material
  5. Pressure regulation type
  6. Pressure regulating range
  7. Operating temperature
  8. Whether to include a condenser
  9. Other special requirements

 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Seller

  • Year Established:

    2003

  • Total Annual:

    141790014-161450000

  • Employee Number:

    1000~1200

  • Ecer Certification:

    Verified Supplier

High-End Die-Shanghai WEYO Automation Technology Co., Ltd. was established in 2021 and is headquartered in Shanghai. It is an innovative technology enterprise that specializes in high-end industrial automation equipment, core components supply, technical services, and solution provision. With the co... High-End Die-Shanghai WEYO Automation Technology Co., Ltd. was established in 2021 and is headquartered in Shanghai. It is an innovative technology enterprise that specializes in high-end industrial automation equipment, core components supply, technical services, and solution provision. With the co...

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  • Reach Us
  • WEYO AUTO TECH
  • Room Milton103, Building 5 - 2, Lane 658, Jinzhong Road, Changning District, Shanghai.
  • https://www.industrial-valvesupply.com/

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