The principle of operation of the ball valve relies on overlapping the medium flow by locking element. The locking element is a ball valve with a through ball cylindrical bore. By turning the locking element on its axis – perpendicular relative to the stationary housing of the ball valve – there is an opening, or blocking the flow of fluid. Regarding the form of the holes, it may be not only circular, but also trapezoidal, rectangular or oval. The size of the opening of the locking mechanism is also different depending on the scope of application of the device and the parameters of the pipeline network.
The crucial point here is that tolerance of ideological identities must operate in the middle ground between intolerance, on one side, and the mere recognition of ‘difference and diversity’ on the other. Within this middle ground there will be a wide range of responses – some of which will be well-informed and well-judged, and others which will not. Clearly tolerance does not demand that all criticism or disagreement must be well-judged and well-informed. Suffice it to say that within this middle ground there will be much that might be judged both ill-informed and ‘over-the-top’ – but this is not, in itself, evidence of intolerance. There is, for example, a significant difference between a Sunday preacher condemning atheists as ‘Godless, wicked fools’, and a fanatic threatening to murder ‘blasphemers’. The former is a form of (objectionable) ignorance and dogmatism; but the latter is a plain case of intolerance. It is a basic confusion to assume that everyone who expresses objectionable views, in an objectionable manner, is ipso facto intolerant. Tolerance allows people to express objectionable views, even in an objectionable manner, as long as they do not resort to coercive measures that violate the rights of others.
22 Apr 2015 The periodic outbreaks of xenophobic violence in South Africa unfortunately force a two-dimensional view of our relationship with immigrantsÂ South Africans say no to xenophobia - The South African 15 Apr 2015 Many South Africans are of the opinion that the attacks are xenophobic and have begun tweeting their views, urging South Africans toÂ Achille Mbembe writes about Xenophobic South Africa – Africa is a 16 Apr 2015 “Afrophobia”? “ Xenophobia ”? “Black on black racism”? A “darker” as you can get hacking a “foreigner” under the pretext of his being too darkÂ Booklet: Stop attacks on foreign nationals | Brand South Africa 24 Apr 2015 We reiterate our view that South Africans are generally not xenophobic because we have a high number of foreign nationals who have beenÂ Settler Colonialism, Migrant Labour, Xenophobia -- The Truth About 28 Dec 2016 South African soldiers check the documents of residents of the of Home Affairs ran an essay and multimedia competition on the topic: "HowÂ Xenophobia Must Fall | Africa Unite The recent xenophobic attacks on foreigners which happened kwazulu Natal and Johannesburg clearly indicate that most South Africans continue to blameÂ South African xenophobia : why is there so much hatred of foreigners 18 May 2015 The South African government has been accused of fanning xenophobic sentiment after police launched a major crackdown on illegalÂ I fear for the future here in South Africa | Opinion | M&G 8 May 2015 Pretoria's response to the xenophobic attacks was to turn defensive, On South Africa's freedom day, President Jacob Zuma offered what mayÂ South Africa : Policy in the Face of Xenophobia | 28 Jul 2008 South Africa is struggling to define a post-apartheid migration policy that migration and development, and the country's rampant xenophobia ,Â