Positive Choke acc. to API 6A [VPC]
DN 50 (2 1/16)
Working pressure 2000 ÷ 5000 psi
- Positive Choke is intended for flowing fluid control. The use of this valve makes possible efficient and simple control of fluid flow line without unnecessary erosion and damage caused by turbulence in the flowing system. Flowing area is changeable by the different sizes of orifices.
- Body, bonnet and bonnet nut are of alloyed Chromium-Molybdenum (Cr-Mo) steel or stainless steel. Orifice and body seat ring are made of stainless steel with a minimum of 13% Chromium. The Bonnet gasket is made of VITON.
Production and delivery
- Positive Choke is designed and manufactured in accordance with API Spec. 6A (ISO 10243), product specification level PSL 1 (PR 1). Dimensions of the flange connections are according with API Spec. 6A/type B Ring Joint, threaded ends according to API Std. 5B. Centre-To-Face and Centre-To-End dimensions are according to manufacturer standard. Quality control is according to API Spec. 6A (ISO 10423).
Instruction for Installation
- Before installation and first run, connecting pipeline should be thoroughly cleaned of foreign particles that may damage the seating surface.
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