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JD745X multifunctional pump control valve

Quality stability: the implementation of the whole process of quality control, meticulous, all aspects of detection!
Reasonable price: effective internal cost control, reduce expenses, let the benefit of customers!
Fast delivery: advanced production line, sufficient stock, shorten the delivery time!

sell：021-32051999
sell：021-32050777
fax：021-66099555

Details

Product Introduction
Service Promise
Ordering Process

JD745X multi-function pump control valve is composed of main valve, regulating valve and nozzle system. The valve body adopts direct-flow valve body. The main valve control chamber is a diaphragm or piston type double control chamber structure. The control chamber is one more than the general hydraulic control valve. The control function of the main valve is increased, and the slow opening of the pump outlet is realized. Full open, slow close, cut-off and other multi-functional control, to achieve a valve, one-time regulation of the pump outlet multi-functional control.

The nozzle system of this product is controlled by a regulating valve. By setting the opening of the regulating valve, the required control parameters, such as the opening speed of the main valve, the slow closing speed and so on, can be easily realized.

Working principle

When the pump starts, the water pressure acts on the lower chamber of the main valve disc and the control chamber. This pressure opens the main valve. The water in the upper chamber of the control chamber is slowly discharged to the outlet through the control valve B, and the main valve opens slowly. Setting the opening of the regulating valve can get the opening speed of the suitable main valve. When the pump stops working, the inlet water pressure drops rapidly and closes most of the opening quickly under the self-weight and spring pressure, which prevents the remaining opening from slowly closing under the combined action of the water pressure in the upper chamber and the water pressure in the lower chamber.

Setting the opening and opening ratio of the regulating valve A and B can get the proper valve opening and closing speed.

Work characteristics

1. Prevent the water hammer effect is good, will slow open, check the speed of closure, slow shut and other elimination of water hammer technology integration, to prevent the pump does not start hammer and stop the pump backflow and water hammer on the water supply pipeline and pump damage.

2. Easy operation, no need to distribute another control system for the valve, the valve with the pump to open and stop automatically and in order to complete the control function. Proper control parameters can be obtained by setting control valve opening.

3, the valve body uses a full channel, DC, streamlined design. The hydraulic loss is small and the energy saving effect is good.

Functions and uses

The valve is installed at the outlet end of the pump, and the functions of slow opening, full opening, quick closing and slow closing are realized sequentially.

This product is used in high-rise building water supply system and other water supply system pump outlet pipeline to prevent and weaken the water hammer water hammer when the pump is opened and closed, prevent water backflow to protect the pump, maintain pipeline safety.

Main technical parameters

公稱壓力(Mpa)	殼體試驗壓力(MPa)	密封試驗壓力(MPa)	調(diào)壓范圍(MPa)	緩閉時間(S)	動作壓力(MPa)	適用介質(zhì)	介質(zhì)溫度(℃)
1.0	1.5	1.1	0.09-0.8	3-60 (可調(diào))	≥0.07	水	0-80
1.6	2.4	1.76	0.15-1.4
2.5	3.75	2.75	0.2-2.0

Material of main parts

零件名稱	零件材料
閥體閥蓋	WCB
閥座閥盤	銅合金/2Cr13
密封圈 O型圈	丁腈橡膠
閥桿	2Cr13
彈簧	50CrVA
缸套活塞(活塞型)	2Cr13
膜片(膜片型)	夾織物丁腈橡膠
調(diào)節(jié)閥球閥	銅合金
過濾器	不銹鋼

Parts list:

1, main valve 2, flow control valve 3, filter.

Main shape connection dimensions

DN	L	H	D mm			D1 mm			b mm			D2 mm			n-Φd
DN	mm	mm	PN1.0	PN1.6	PN2.5	PN1.0	PN1.6	PN2.5	PN1.0	PN1.6	PN2.5	PN1.0	PN1.6	PN2.5	PN1.0	PN1.6	PN2.5
40	240	270	150	150	150	110	110	110	18	18	18	88	88	84	4-17.5	4-17.5	4-18
50	240	270	165	165	165	125	125	125	20	20	20	102	102	99	4-17.5	4-17.5	4-18
65	270	340	185	185	185	145	145	145	20	20	22	122	122	118	4-17.5	4-17.5	8-18
80	300	400	200	200	200	160	160	160	22	22	24	133	133	132	8-17.5	8-17.5	8-18
100	350	440	220	220	235	180	180	190	24	24	24	158	158	156	8-17.5	8-17.5	8-22
125	400	460	250	250	270	210	210	220	26	26	26	184	184	184	8-17.5	8-17.5	8-26
150	480	500	285	285	300	240	240	250	26	26	28	212	212	211	8-22	8-22	8-26
200	500	640	340	340	360	295	295	310	28	30	30	268	268	274	8-22	12-22	12-26
250	605	690	395	405	425	350	355	370	28	32	32	320	320	330	12-22	12-26	12-30
300	700	820	445	460	485	400	410	430	28	32	34	370	370	389	12-22	12-26	16-30
350	800	950	505	520	555	460	470	490	30	36	38	430	430	448	16-22	16-26	16-33
400	900	1400	565	580	620	515	525	550	32	38	40	482	482	503	16-26	16-30	16-36
450	1000	1580	615	640	670	565	585	600	32	40	42	532	550	548	20-26	20-30	20-36
500	1100	1600	670	715	730	620	650	660	34	42	44	585	585	609	20-26	20-33	20-36
600	1300	1815	780	840	845	725	770	770	36	48	46	685	685	720	20-30	20-36	20-39
700	1400	2040	895	910	960	840	840	845	40	54	50	800	800	820	24-30	24-36	24-42
800	1500	2350	1015	1025	1085	950	950	990	44	58	54	905	905	925	24-33	24-39	24-48
900	1700	2606	1115	1125	1185	1050	1050	1090	46	62	58	1005	1005	1028	28-33	28-39	28-48
1000	1900	2765	1230	1255	1320	1160	1170	1210	50	66	62	1110	1110	1140	28-36	28-42	28-56
1200	2050	2950	1455	1485	1530	1380	1390	1420	56	52	70	1330	1328	1350	32-39	32-48	32-55
1400	2200	3180	1675	1685	1755	1590	1590	1640	62	58	76	1530	1530	1560	36-42	36-48	36-60
1600	2400	3400	1915	1930	1955	1820	1820	1860	68	64	84	1750	1750	1780	40-48	40-55	40-60

安裝示意圖

The best quality, first-class service Qigao creates more value for you!

"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

Product Standards：

Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

pre-sale service：

Product introduction, technical exchange, non-standard product design, troubleshooting。

Sale service：

A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service：

1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：

a、Structure length；

b、Connection Type；

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range；

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

Order Process：

1、Customer purchase list fax to021-33872143，Or call us 021-33872141

2、Receive customer purchase list, provide valve model selection and quotation (price list)。

3、Specific agreement: delivery date, special requirements, etc.。

download Google：

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：

a、Structure length；

b、Connection Type；

c、Nominal diameter, full diameter, reduced diameter, pipe size；

d、Operating medium and temperature, pressure range；

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time.， The rest of the payment will be remitted before shipment to arrange delivery in time.。

Sale service：

Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service：

1、"Qigao" product quality period is from the factory12Month, practice“Three packs”Service (return, replacement, warranty)。

3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。

statement

All text, data and pictures in this article are for reference only.JD745X multifunctional pump control valvePlease contact us at 4000-700-665 for details of performance, size and price.
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