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KOSCN PV710 Pressure Retention Valve

The KOSCN PV710 Pressure Retention Valve is tailored for controlling upstream pressure to smooth out fluctuations and lower peak pressures. It's installed off the main pipeline where it doubles as a safety or relief valve to prevent excessive pressure. Additionally, it functions as a backpressure or overflow valve on the main pipeline for certain backpressure needs, showcasing its versatile design to meet various industrial requirements.

Applications:
Leachate from waste | Pure water systems | Wastewater systems | Power | Semiconductor | Chemical industries | Papermaking | Biopharmaceuticals | Food and beverage | New energy | New materials
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Convenience and Easy Maintenance

Convenience and Easy Maintenance

  • Fully plastic exterior, aesthetically pleasing and corrosion-resistant.
  • Easy to install, maintenance-free.
  • Connections adhere to the international DIN 8063 standard.
  • Pressure can be adjusted at any time, including during operation.

High Safety Performance

  • Capable of operating at pressures up to 10 bar.
  • Effectively balances pressure fluctuations, reducing peak pressures.
  • Instrument interfaces threaded with stainless steel for compatibility with various installation strengths.
  • Reinforced PTFE rubber diaphragm ensures higher pressure resistance.
     
High Safety Performance
High Flexibility

High Flexibility

  • Wetted materials include PVC-U, PPH, PVDF, SUS.
  • Sealing materials: EPDM, FPM.
  • Connection types: Union, Flange, Internal Thread (stainless steel valves only).
  • Interface standards: DIN, JIS, ANSI.
  • Valve end instrument interfaces can be fitted with pressure gauges or pressure sensors.
  • Working pressure can be preset before delivery as required.
 

Disassembled Components and Material Structure Selection

NO Components
1 Adjustment Screw Protective Cap
2 Adjustment Mechanism Housing
3 Hexagonal External Adjustment Screw
4 Adjustment Screw Thread Position Nut
5 Lead Screw Nut
6 Spring Upper Base
7 Upper Base Balance Ball
8 Adjustment Spring
9 Spring Lower Base
10 Lower Base Balance Ball
11 Diaphragm Pressure Block
12 Composite Diaphragm
13 Valve Body
14 Locking Bolts and Anti-Corrosion Caps
15 Fixed Installation Hole

Size

Manual Ball Valve

d DN N H h L L1 L2 L3 L4 t V M
16 10 80 147 25 120 - 126 - 144 14 40 6
20 15 80 147 25 120 228 126 150 144 16 40 6
25 20 107 207 32 150 264 156 180 174 19 46 6
32 25 107 207 32 150 270 156 180 174 22 46 6
40 32 146 272 53 204 331 211 230 224 26 65 8
50 40 146 272 53 204 338 211 230 224 31 65 8
63 50 146 272 53 204 343 211 230 224 38 65 8
 
 
Manual Ball Valve

Manual Ball Valve

Data based on clean water media and a 25-year safety life; applications in other media require reduced temperature and pressure.

Pressure-Temperature Curves: PVDF

Data based on clean water media and a 25-year safety life; applications in other media require reduced temperature and pressure.

Pressure-Temperature Curves: PVDF
Flow Capacity

Flow Capacity

Data based on clean water media at 20°C and a pressure difference of 1bar;
Cv = Kv X 0.07
Fv = Kv X 0.0585
Kv (l/min)
Cv (gal/min) US
Fv (gal/min) GB

KOSCN

KOSCN Industrial Manufacturing (Shenzhen) Co., Ltd., founded in 2005 and headquartered in Shenzhen, China, operates globally with subsidiaries and agent teams. It offers comprehensive pre-sales and after-sales services worldwide. KOSCN has a professional R&D, design, and production team, adhering strictly to ISO9001, ISO14001, and ISO45001 standards to ensure the highest product quality.

KOSCN's products, mainly automated valves for ultra-pure and corrosive systems, are widely used in semiconductor, glass panel, electroplating, wastewater treatment, waste liquid solidification, solar energy, landfill leachate, PCB, metallurgy, steel, ultra-pure water, recycling, chemical, food and beverage, power, paper, biopharmaceutical, and biofermentation industries.

Download: KOSCN Product Brochure

KOSCN
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