problem with translation

[sebekwww]

Hi,
I have a big problem with translation of a one technical word. Maybe someone
will be able to help me wit that:
The term, or rather a part name is: "orifice valve"
I will be really grateful,
Bya
S.

[Gość: drd]

oto to co znalazlem
A type of valve, typically found on small-diameter pipework, that
incorporates an orifice or flow-restriction device to control fluid flow

[sebekwww]

Well, I found many informations about the device, but I need an extact polish
translation. That's the real problem
S.

[Gość: wiwa]

A type of valve, typically found on small-diameter pipework, that incorporates
an orifice or flow-restriction device to control fluid flow.
Czyli, przekladajac na polski, zawor dlawiacy
Pzdr

[Gość: rat]

Zawor otwarcia