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PV710 Pressure Relief Valves

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.

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

Manual Data Sheet Company Product Brochure

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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

Founded in 2005 and headquartered at the forefront of China's reform and opening-up in Shenzhen, KOSCN Industrial Manufacturing (Shenzhen) Co., Ltd. has expanded its presence with subsidiaries and offices in Suzhou, Chengdu, Changsha, Hong Kong, and even overseas in Germany. With a robust network of pre-sales and after-sales agency teams spread across China and abroad, KOSCN stands as a global enterprise specializing in the manufacture of fluid control products for ultra-pure and corrosive systems, including automation valves and instrumentation.

Holding numerous patents, KOSCN is recognized as a high-tech and specialized enterprise. Its products are widely used across various sectors, including semiconductors, glass panels, electroplating, wastewater treatment, waste fluid solidification, photovoltaics, leachate from landfills, circuit boards, metallurgy, steel, ultra-wastewater, recycling, chemical, food and beverage, power, paper, biopharmaceuticals, and bio-fermentation.

As a system supplier offering countless solutions across a broad spectrum of industries, KOSCN boasts a professional team that covers every aspect from research and development to design, from quality assurance to production, and from mold making to injection molding. Adhering to ISO9001, ISO140001, and ISO45001 standards, KOSCN commits to quality, environmental sustainability, and health, ensuring high-end product quality for modern production methods.

KOSCN
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