Main Image
  • koscn-PV710-1
  • koscn-PV710-2

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
즉시 문의
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

尺寸

手動球閥

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

d DN D1 DK H h L L1 L2 L3 E W M
20 15 50 13 52 27,0 133 146 56,5 63 75 25 M6
25 20 58 18 60 30,5 158 162 66,0 72 88 25
 M6
32 25 68 23 66 35,5 167 171 71,0 77 88 25
 M6
40 32 84 30 80 43,5 189 194 85,5 90 110 45
 M8
50 40 97 38 85 50,5 214 204 90,0 96 110 45 M8
63 50 123 48 107 64,0 246 224 101,5 108 135 45 M8

電動球閥

d D b k-DIN K-JIS K-ANSI φe
20 95 12 65 70 60,45 14'16
25 105 14 75 75 69,85 14'16
32 115 16 85 90 79,25 14'19
40 140 18 100 100 88,90 16'19
50 150 18 110 105 98,55 16'19
63 165 18 125 125 120,65 18'19

d DN D1 DK H h L L1 L2 L3 E W M
20 15 50 13 136 27,0 133 146 56,5 63 102 25 M6
25 20 58 18 149 30,5 158 162 66,0 72 102 25
 M6
32 25 68 23 154 35,5 167 171 71,0 77 102 25
 M6
40 32 84 30 168 43,5 189 194 85,5 90 102 45
 M8
50 40 97 38 173 50,5 214 204 90,0 96 102 45 M8
63 50 123 48 191 64,0 246 224 101,5 108 102 45 M8
壓力溫度曲線：PVC-U/ PVC-C

壓力溫度曲線：PVC-U/ PVC-C

數據基於清水類介質及25年的安全壽命；其他介質的應用必須降低溫度和壓力

壓力溫度曲線：PVDF

數據基於清水類介質及25年的安全壽命；其他介質的應用必須降低溫度和壓力

壓力溫度曲線：PVDF
流通能力

流通能力

基於20°C清水介質及1bar壓差時數據；
Cv = Kv X 0.07
Fv = Kv X 0.0585
Kv (l/min)
Cv (gal/min) US
Fv (gal/min) GB

關於科訊

科訊工業制造（深圳）有限公司成立於2005年，公司總部位於中國改革開放的最前沿深圳。在中國蘇州、成都、長沙、香港和海外德國設有分公司和辦公室。售前售後的代理商團隊更遍布全國和海外地區。
KOSCN是一家國際性的流體控制產品制造企業，用於超純凈、腐蝕性系統的自動化閥門和儀器儀表是我們主要產品。
公司取得多項專利，是高新技術企業和專精特新企業，其產品廣泛應用在半導體、玻璃面板、電鍍、廢水處理、廢液固化、光伏、垃圾滲濾液、線路板、冶金、鋼鐵、超廢水、回收再生、化工、食品飲料、電力、造紙、生物制藥、生物發酵等領域。
作為一家系統供應商，在廣泛的領域里提供了無數的解決方案，我們擁有從研發到設計，從品質到生產，從模具到注塑的專業團隊。科訊對質量、環境和健康一直執行ISO9001、ISO140001、ISO45001，為現代化的生產方式保證了高端的產品品質。

關於科訊
즉시 문의