DJ41W Low Temperature Long Rod Stop Valve

• Media: Aqueous Vapor Liquid
• Temperature: Ordinary Temperature
• Actuator: Manual Pneumatic Electric
• Material: Stainless Steel Carbon Steel
• Structure: Through Way Globe Valve
• Sealing Form: Hard Seal and Soft Seal
• Model NO.: DJ41W
• Stem Thread Position: Outside Screw Stem Globe Valve
• Application: Lining Fluorine Valve, Needle Type Globe Valve, Cryogenic Globe Valve, Plunger Type Globe Valve, Heat Preservation Globe Valve, Forged Steel Globe Valve, Oxygen Globe Valve, Bellows Globe Valve
• Standard: DIN, GB, ANSI, BSW, JIS
• Stress: Meso-High
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000

Product Description

Device product features:
This paper introduces the selection of filter applied to central air conditioning terminal equipment in the domestic central air conditioning design, mainly from the clean design specifications, filtration mechanism and filter specifications, etc., suitable for project designers, builders and users to choose, maintain and replace the filter device reasonably. Key words: air conditioning unit filtration efficiency service life 1, introduction At present, more projects central air conditioning air handling unit in use in a very short time on the need to replace the filter, greatly increasing the user's operating costs, while causing a waste of raw materials. Therefore, it is necessary for designers and engineering contractors to understand the filter performance as a reasonable choice of filters to become the development trend. 2, filter 2.1 Filter mechanism hit → stick to the dust particles in the air, or with the inertia of the air flow, or for irregular movement, or by some field force and move. When the particle in motion hits an obstacle, the gravitational force between the particle and the obstacle surface makes it stick to the obstacle. Fiber filter material The filter material should be able to effectively intercept dust particles without creating excessive resistance to the air flow. Nonwoven fiber materials and specially made paper meet this requirement. The mixed fibres form numerous barriers to particles, and the wide Spaces between the fibres allow air to pass through. Y type filter model, Y type filter model size: according to the pressure and caliber is divided into two categories.
1. According to pressure level, three pressure levels, 1.0MPa, 1.6MPa, 2.5MPa.
 2. According to the caliber classification, DN40 to DN600, the middle calibers have. This is talking about the inside diameter of the Y filter.
 For example: The specific product letter represents the model can be written like this: Y type filter - DN50-1.6mpa, indicating that the caliber is DN50 and the pressure is 1.6MPa.
Y type filter product overview
Y-type filter in addition to supporting the use of pressure reducing valve, Y-type filter can also be used separately in cold and hot circulating water system, compressed air, steam, oil and other media pipelines. Used to remove mechanical debris occasions. The shell is cast iron or welded steel pipe. The filter is made of stainless steel, the general water network is 8-30 mesh, the ventilation network is 40-100 mesh, and it can also be produced according to requirements.
 In recent years, it has been found that due to the construction and other factors caused by debris blockage Y filter phenomenon is serious, general filter blockage, can not be detected in time, the newly designed Y lens filter can be directly from the outside to see the filter in the mechanical debris, in order to clean in time, completely solve the filter blockage, resulting in the whole system is not running smoothly.
Third, the installation and maintenance of each Y-type filter model
(1) When installing each Y-type filter, it is necessary to protect the front end of various matching valves on the water inlet pipe.
(2) According to the situation of the trap, the filter is not cleaned regularly, and the valve before the filter is closed when cleaning.
(3) Remove the valve cover to clean the debris attached to it.
(4) Take out the filter cartridge, remove the debris, and clean the filter screen.
(5) Clean the valve body.
(6) Assemble the Y-type filter and continue to use.
1. Inlet and outlet diameter: in principle, the inlet and outlet diameter of the filter should not be less than the inlet diameter of the matching pump, which is generally consistent with the inlet pipe caliber.
2. Nominal pressure: Determine the pressure level of the filter according to the highest pressure that may appear in the filter pipeline.
3. The selection of the number of holes: the main consideration is the particle size of the impurities to be intercepted according to the technological requirements of the medium process. The water network is 18-30 mesh, the ventilation network is 40-100 mesh, and the oil network is 100-480 mesh.
4. Filter material: The material of the filter is generally the same as that of the process pipe connected to it. For different service conditions, cast iron, carbon steel, low alloy steel or stainless steel filters can be considered.
5. Filter resistance loss calculation: water filter in the general calculation of rated flow rate pressure loss of 0.52 ~ 1.2kpa.

 

Nominal diameter		DN15	DN20	DN25	DN32	DN40	DN50	DN65	DN80	DN100	DN125	Remarks
Overall dimensions	L	125	150	160	180	195	215	250	285	300	350	The numbers in parentheses are the dimensions of the wire connector DN15 to DN20. All others are flange connector dimensions
	H	102	119	125	145	164	186	238	273	306	310
Type SG-16
Nominal diameter		DN150	DN200	DN250	DN300	DN350	DN400	DN450	DN500	DN600
Overall dimensions	L	380	480	545	605	660	780	850	885	1150
	H	400	470	480	640	642	830	900	1000	1200
Type SG-16