FGP4XThe compound high-speed intake and exhaust valve is mainly used in the water pump outlet, water supply and drainage pipeline, with the function of automatic exhaust and natural air supplement, which can improve the drainage efficiency of the water transmission pipeline and reduce the discharge cost. Once the negative pressure is generated in the pipeline, the external air is quickly introduced to protect the pipeline from pressure damage, and the air in the pipeline can be quickly discharged.

1. Fast and large amount of exhaust. The exhaust port adopts the permeable structure, when the water begins to enter the pipe, the gas in the pipe can be quickly discharged. The design of the flow channel structure in the valve uses the aerodynamic principle to ensure that the floating ball will not be blown up when the high-speed exhaust is carried out, so as to realize the exhaust under the condition of full pressure.
   2. Micro exhaust. When the pipe is filled with water, the main exhaust port is sealed, and a small amount of accumulated gas generated in the operation process will be discharged through the rolling shutter type micro exhaust valve to avoid the accumulation of gas in the pipe; the rolling shutter type micro exhaust valve adopts the rolling shutter sealing structure, which can quickly discharge a small amount of accumulated gas and can be quickly sealed, greatly reducing the possibility of being blocked by foreign matters It can adapt to a wide range of exhaust pressure and has self-cleaning function.  
   3. Inhale quickly. When the water flow in the pipeline is interrupted or negative pressure is generated, the main floating ball will fall down, open the main exhaust port, quickly inhale gas and replenish it into the pipe, so as to protect the pipeline from damage. At the same time, through the unique design of the flow channel structure in the valve, the intake volume and inlet speed can be controlled.

1. Reliable sealing, special sealing design
2. Automatic exhaust and automatic air supplement, no need to operate
3. It has three functions: A. discharge a large amount of air in the pipeline; B. small amount of exhaust in the system operation; C. high speed introduction of external air; and
4. It is durable, the small floating ball moves according to the fixed track, and will not collide with the shell
5. The closing force is large, and the counterweight is increased compared with other exhaust valves
6. Compared with other types of exhaust valve, the height size is smaller (other exhaust valve is the central exhaust valve cover)
7. There will be no pressure water scouring the floating ball, causing the false operation and closing of the floating ball.

 

Nominal pressure: 1.0MPa, 1.6Mpa, 2.5MPa
Applicable media: clear water, sewage and raw water
Medium temperature: 0-80 ℃

Nominal size（mm）	15	20	25	32	40	50	65	80	100	150	200	300
ΔPWhen it is 0.035MPa	60	110	170	250	400	670	1600	2100	2900	6100	11800	38000
ΔPWhen it is 0.035MPa	95	170		430	670	1080	2800	3200	4850	10850	18300	49400

 

Main exhaust valve		Micro exhaust valve
Stem	Ball milled cast iron	valve seat	cast steel
Valve cover	Ductile iron	Valve cover	Reinforced nylon
valve seat	copper	spool	Foamed polypropylene
Floating ball and buffer disk	stainless steel	Sealing strip	Nitrile rubber
Sealing element	Nitrile rubber	Clamping rod	Reinforced nylon
filter screen	stainless steel	O-ring	Nitrile rubber

 

​

 

PN=1.0MPa

Nominal diameter	Dimensions（mm）		Flange size（mm）
	lengthL	heightH	external diameterD	Bolt hole center circle diameterK	Bolt holen-d
DN50	250	260	165	125	4-18
DN65	280	280	185	145	4-18
DN80	315	340	200	160	8-18
DN100	413	334	220	180	8-18
DN125	535	485	250	210	8-18
DN150	580	520	285	240	8-22
DN200	668	640	340	295	8-22
DN250	770	780	395	350	12-22
DN300	850	920	445	400	12-22

PN=1.6MPa 

Nominal diameter

Dimensions（mm）		Flange size（mm）
lengthL	heightH	external diameterD	Bolt hole center circle diameterK	Bolt holen-d
DN50	250	260	165	125	4-18

 

DN65	280	280	185	145	4-18
DN80	315	340	200	160	8-18
DN100	413	334	220	180	8-18
DN125	535	485	250	210	8-18
DN150	580	520	285	240	8-22
DN200	668	640	340	295	12-22
DN250	770	780	405	355	12-26
DN300	850	920	460	410	12-26

(1) In strict accordance with the requirements of the contract, to provide qualified products that meet the design standards.
(2) Strictly check and control the quality of raw materials, components and accessories.
(3) Ensure that the processing technology of the equipment is perfect and the detection means are complete. Products will never leave the factory with defects.
(4) Be fully responsible for the supply, quality, equipment performance, technical interface, service and other aspects of the subcontractor. The key parts specified in the contract must meet the requirements of relevant qualification and be approved by the demander.
(5) Provide relevant department standards and drawings to the supervision unit according to the contract, provide convenience for the supervision, and inform the demander and the supervision representative of the shutdown parts of the supervision equipment 7 days in advance. The supervision assigned by the demander is to urge us to produce qualified products according to the standards, but it does not reduce all our quality responsibilities.
(6) The quality defects in the process of equipment manufacturing shall be timely reported to the demander and the supervision representative without concealment. If the equipment defect exceeds the standard specified in the contract, the supplier shall replace it unconditionally. In the process of installation and trial operation, if there are quality problems of the equipment, the problems should be dealt with first, and then the responsibilities should be clarified. Everything should be based on the requirements of project progress.
(7) In case of any accident, we will replace and repair the supplied equipment free of charge as soon as possible until the demander is satisfied.
(8) In case of missing parts or missing parts caused by other reasons in the process of unpacking, we are responsible for making up the missing parts for free as soon as possible. We shall be responsible for the quality problems found during the installation and commissioning of the equipment and in the operation of the equipment in the future.
(9) Provide the demander with all technical data and drawings according to the contract on time. Have the obligation to invite the demander to participate in our technical design audit when necessary.
(10) According to the time required by the demander to the site for technical services, guide the demander to install, trial run and trial production according to the requirements of our technical data and drawings.
(11) For the supporting equipment related to the contract equipment purchased by the demander first, we will actively provide the technical conditions and data meeting the equipment interface requirements.
(12) Strictly implement the minutes or agreements of the meeting held by both parties on relevant issues.
(13) According to the provisions of the contract, free business training courses on equipment installation, commissioning, use and maintenance technology shall be held for the demander.
(14) Strengthen pre-sale, in-sales and after-sales services, and implement "24-hour service", "advanced service", "whole process service" and "life-long service" in the whole process of product manufacturing, installation, commissioning and overhaul.
(15) After receiving the quality problem information reflected by the demander, reply within 24 hours or send service personnel to the site as soon as possible, so as to ensure that the user is not satisfied with the quality and the service does not stop.
(16) Free for the product to provide lifelong maintenance, where our factory users, have established a detailed user file, our factory after-sales service. Regular return visit and inspection system are implemented to guide the daily maintenance of users, and timely point out and solve possible faults.
(17) At any time to meet the demander's requirements for spare parts, lifetime to provide users with high-quality and low-cost spare parts.