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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Catalogue

지금 문의

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 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

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

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。

지금 문의

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	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	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