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Use

Tubular straightening vane under GOST 8.586.1-5-2005

Tubular straightening vane under СВТ-800

Category: Streamers and streamers ГОСТ 8.586.1-5-2005

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Used to stabilize a flow of the measured medium ahead of the flow orifice device by means of the elimination or decreasing of vortex flows induced by local resistances.

It has a form of the cluster consisting of 19 tubes located in parallel to the pipeline axis and filling all its section.
It is manufactured in three versions. Connecting dimensions of straightening vane flanges, version 1 and 3 correspond to GOST 33259-2015.
To be mounted on a pipeline, a straightening vane can be supplied with a set of counter flanges.

Использование

consumption

Tubular straightening vane - version 1

Трубчатый струевыпрямитель - исполнение 1

Tubular straightening vane - version 2

Tubular straightening vane - version 3

Key technical characteristics

Nominal pressure P_y, MPa	Nominal diameter D_у, mm	Mounting length L, mm	External pipeline diameter D_н, mm	Designation of a straightening vane at the nominal pressure Р_у
0,6; 1,0; 1,6; 2,5; 4,0; 6,3: 10*	50	110	57	СВТ Р_у-50
	65	140	76	СВТ Р_у −65
	80	170	89	СВТ Р_у −80
	100	210	108	СВТ Р_у −100
	125	260	133	СВТ Р_у −125
	150	310	159	СВТ Р_у −150
	200	430	219	СВТ Р_у −200
	250	540	273	СВТ Р_у −250
	300	650	325	СВТ Р_у −300
	350	740	377	СВТ Р_у −350
	400	850	426	СВТ Р_у −400
	450	950	480	СВТ Р_у −450
	500	1050	530	СВТ Р_у −500
	600	1250	630	СВТ Р_у −600
	700	1450	720	СВТ Р_у −700
	800	1650	820	СВТ Р_у −800
	900	1850	920	СВТ Р_у −900
	1000	2050	1020	СВТ Р_у −1000

* only for measurement pipelines with a nominal inside diameter up to 400 mm

Materials contacting with operating media

Material		Code of materials in the straightening vane conventional symbol
Straightening vane	Sealing
Steel 12Х18Н10Т GOST 5632	Paronite GOST 481	Б
Steel 20 GOST 1050		А
Steel 09Г2С GOST 19281		09Г2С

Warranty liabilities

Parameter	Value
Warranty operating life, months	18 months since the commissioning date but no more than 24 months since the date of manufacture

Contents of delivery

Name	Number
Straightening vane	1
Paronite gasket	2
Data Sheet	1
Flange*	2
Hardware kit (pins, nuts, washers)**	1
Manufacturer’s plant Data Sheet*	1

* at the supply in combination with kit of counter flanges (code "KF")

Designations at the order

Straightening vane	СВТ 2,5-100	А	1	108×4	КФ
1	2	3	4	5	6

Name.
Designation.
Code of materials contacting with operating media.
Version.
External pipeline diameter x wall thickness, mm.
6. For the supply in combination with a kit of counter flanges specify the code "KF".

Certificates

1. Straightening Vanes Declaration of Compliance CU TR 22.12.2020 (RU)

Articles

1. Straightening vanes

Frequently asked questions

1. What is a pressure loss because of a tubular straightening vane installation?

A disc device (Zanker type) for the preparation of a flow and a tubular straightening vane are manufactured in compliance with GOST 8.586.1-2005. The aforementioned standards specify the hydraulic resistance k coefficient on straightening vanes. In particular, for the Zanker type the coefficient k is equal to 3.0, for a tubular - 0.75.
Knowing hydraulic resistance coefficients k, one can calculate the losses of pressure in compliance with the formula of local hydraulic lossesone can calculate the losses of pressure in compliance with the formula of local hydraulic losses.
dp = k * ro * u * u / 2,
where dp — pressure losses;
k — hydraulic coefficient resistance;
ro — liquid density;
u — average liquid flow velocity in the section.