Cantilever quick-opening filter

intro

The quick-open filter cover is of the screw press type and is compact. It has the advantages of quick installation, disassembly, cleaning and inspection, and is suitable for fluid [1].

Main components

The main components are:
1. Connect the flange
2, cross the rod
3, exhaust joint
4, filter screen
5. Screw
6. Pin
7. Ear pieces
8. Cylinder
9. Sewage outlet
10. Support legs

Model meaning

LTFW 200 C 2.0 30
30 -- Mesh size (30/inch)
2.0 -- nominal pressure (2.0Mpa)
C-carbon steel (carbon steel by default) M- Low alloy steel S-stainless steel
200 -- Nominal pipe diameter (DN200)
LTFW -- product code.

External dimensions

Model specifications	Diameter Nominal DN	L	H	H1	H2	H4	D1	D2
100LTFW	100	459	508	272	810	100	219	160
150LTFW	150	565	724	404	1150	120	325	260
200LTFW	200	617	793	446	1270	130	377	300
250LTFW	250	860	893	495	1430	130	620	650
300LTFW	300	980	997	563	1600	130	740	800
350LTFW	350	1020	1100	620	1770	130	780	850
400LTFW	400	1100	1200	680	1900	130	860	900

[1]

Material and working temperature

The main structural material of the filter is carbon steel, low alloy steel or stainless steel, respectively denoted by code C, M and S, and the working temperature of the filter of various materials is as follows:

Material	Usual	Max
Carbon steel	- 20 ºC ~ 120 ºC	- 20 ºC ~ 200 ºC
Low alloy steel	- 40 ºC ~ 180 ºC	- 40 ºC ~ 200 ºC
Stainless steel	- 40 ºC ~ 180 ºC	- 196 ºC ~ 200 ºC

Recommended number of mesh filters

Install in the oil pump before the suction filter mesh reference number

Flowmeter category	Gear, turbine flow meter	Waist wheel flow meter
Mesh (mesh/inch)	20 ~ 60	40 ~ 60

The connection size of both ends of the filter flange conforms to the Ministry of Chemical Industry standard "Chemical pipeline Filter" HGJ532-91.

Selection principle

General principles of filter selection:
1, import and export diameter
In principle, the inlet and outlet diameter of the filter should not be less than the inlet diameter of the matching pump, 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 line.
3, the selection of the number of holes
Mainly consider the particle size of the impurities to be intercepted, according to the medium process requirements. The particle size of various specifications can be intercepted by the screen check the following table "filter specifications".
4, filter material
The material of the filter is generally the same as the material of the connected process pipe. 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, the pressure loss is 0.52 ~ 1.2kpa

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