Slowly Closed Check Valve 300X

• Media: Water
• Temperature: Ordinary Temperature
• Actuator: Pneumatic
• Connection: RF Flanged
• Material: Stainless Steel
• Structure: Diaphragm Type with Double Chamber
• Model NO.: 300X
• Pressure: Ordinary Temperature
• Flow Direction: Bidirectional
• Function: Control Water Level
• Usage: Flow Control
• Standard: GS, CE, ISO9001
• Power: Pneumatic
• Takeover System: Floating Ball Valves, Ball Valves and Nozzles
• Liquid Level Control: Floating Ball Guide Valve
• Ball Valve and Floating Ball Valve: Open or Closed
• Transport Package: Standard Wooden Export Case
• Specification: Customized
• Trademark: GLF
• Origin: China
• HS Code: 8481804090
• Production Capacity: 1000

Product Description

Product introduction
300X slow closing check valve from the main valve, check valve, needle valve, ball valve, micro shaped filer and pressure gauge hydraulic control valve to take over the system. The use of automatic hydraulic operation, the main valve can be opened and closed the best speed. To prevent water hammer water hammer, in order to achieve the effect of slow closing mutfier. When the valve from the inlet water, water through the micro filter, needle valve, a one-way valve into the main valve control room, and then through the drainage valve to the downstream. Because the needle vaive opening is less than the opening, the main valve control room of the drainage rate faster than water, so the control chamber pressure reduced, on the bottom of the main valve disk inlet pressure open the main valve to supply water to the water downstream. When the pipeline when the water is stopped, if swimming began to return, the back part of the water by the ball into the main control room, due to the function of a one-way valve, water can not back out from the main control room, causing the gradual step-up the main control room, slowly turn off the main valve this product with a hydraulic self-control, do not need other devices and energy, maintenance is simple, open, and slowly closed steady. This valve products are widely used in water supply systems in high-rise buildings, living areas and city water supply project.

Purpose
Used for the pump outlet in high building or other water supply systems to prevent the medium from backflow and reduce water hammer so as to leave a safe and peaceful effect.

Features
Able to prevent both water hammer and water shock from being produced so as to get the slow-closing and silencing effect.It is a check valve able to adjust and control the open-close speed and,at the time for the pump to start or stop working,can adjust the open-close speed to its best on the site.

Principle
When the pump stops,the medium flows back,the pressure in the upper cavity of the valve is larger than that in the lower one,the disc falls off to close.Control of the speed for the back water to enter the upper cavity of the diaphragm can adjust the speed for the valve to close so as to get the slow closing effect.

Main Connection dimensions

DN(mm)	Size(mm)
	L	A1	A	H1	H	F
20	150	200	282	106	172	116
25	160	200	282	106	172	116
32	180	200	282	106	172	116
40	200	210	320	137	225	168
50	203	210	320	137	225	168
65	215	215	330	145	270	180
80	241	220	330	178	289	210
100	270	230	410	232	375	284
125	300	245	420	286	420	310
150	330	260	420	318	450	370
200	400	280	430	413	722	463