{"id":16632,"date":"2021-03-22T22:10:51","date_gmt":"2021-03-22T20:10:51","guid":{"rendered":"http:\/\/petrozas.com\/test\/?page_id=16632"},"modified":"2021-03-30T14:33:16","modified_gmt":"2021-03-30T12:33:16","slug":"control-valve","status":"publish","type":"page","link":"https:\/\/www.petrozas.com\/index.php\/products\/valves-flow-control-products\/control-valve\/","title":{"rendered":"Control valve"},"content":{"rendered":"<p>[vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;grid&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; padding_top=&#8221;94&#8243; padding_bottom=&#8221;40&#8243; anchor=&#8221;portfolio&#8221; background_color=&#8221;#f7f7f7&#8243;][vc_column][vc_text_separator title=&#8221;Control Valves&#8221; css_animation=&#8221;bounceIn&#8221; border=&#8221;no&#8221;][vc_column_text]<\/p>\n<ul>\n<li>V-ball Control Valve<\/li>\n<\/ul>\n<p>V-ball control valves are composed of V-notch ball valve\u3001actuator and other accessories. It utilizes compressed air forcing stem to drive the ball rotating 90\u00ec in the body, achieving fully open to fully close. The valve plug with V-notch design has the flow-cut function, therefore, it has excellent flow controlling and cutting off function. Equipped with pneumatic or electric actuator cooperating with accessories like positioner or solenoid valve, it can achieve adjusting by ratio. Soft seal and metal seal are optional sealing types.<span class=\"Apple-converted-space\">\u00a0<\/span><br \/>\nIn services of petroleum\u3001chemical industry\u3001pharmaceutical\u3001waste water disposing and tank trunk, it\u2019s used for on-off and regulating various mediums, such as liquid\u3001gas and slurry , ideal for high viscosity and fibre and grain containing medium.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Three-way Control Valve<\/li>\n<\/ul>\n<p>three way (combine\/diffluence) control valve has functions of dividing one-way flow into two-way flow or combining two-way flow into one-way flow. It has features of S-shape passageway\u3001cage-guided\u3001quick-disassemble seat and integral design , ideal for heat exchanger to adjust temperature. Equipped with valve positioner, it\u2019ll have advantages of adjusting by ratio\u3001high adjustable ratio and high Cv etc , so it\u2019s widely used in automatic-control services, such as paper mill\u3001chemical industry\u3001petroleum\u3001chemical fiber and metallurgy etc.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Multil-stage Depress Pressure Control Valve<\/li>\n<\/ul>\n<p>multi-stage depress pressure control valve utilizes multi-cage to reduce the pressure. It has features of S-shape passageway and high Cv. The valve plug is designed as balancing structure, so it can adjust the flow stably and has excellent anti differential pressure capability. According to different differential pressure, it can be designed with 1 to 3 stage cage to avoid the generation of flashing and cavitation effectively, ideal for services of high gas or liquid differential pressure\u3001flashing and cavitation .<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Cage-guided Control Valve<\/li>\n<\/ul>\n<p>cage-guided control valve is a pressure balancing control valve featuring high Cv\u3001wide adjusting range and high precise flow feature. This product is usually equipped with pneumatic diaphragm actuator, ideal for flow controlling services need good dynamic stability\u3001low noise and low leakage rate.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Single-seated Control Valve<\/li>\n<\/ul>\n<p>single-seated control valves are designed as top-guided structure and S-shape passageway featuring low pressure loss\u3001high Cv\u3001wide adjusting range\u3001high precise flow feature curve and well anti-seismic behavior. This product usually equipped with pneumatic diaphragm actuator features compact integral with well anti differential pressure capability and it\u2019s usually used to control the flow of different pressure and temperature.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Sliding Stem Valves Series<\/li>\n<\/ul>\n<p>Size:1\/2\u201d~36\u201d(DN15~DN900)<br \/>\nRating:150Lb~2500Lb(PN16~PN420)<br \/>\nMaterials: Carbon steel \/Stainless steel \/ Alloy steel \/Special ( Monel\u00a0 \/Inconel \/Hastelly\u00a0 etc.)<br \/>\nalloy steel<br \/>\nEnd connection :RF\/RTJ\/BW<br \/>\nOperation:\u00a0 Diaphragm\/ motor\/pneumatic actuators<br \/>\nOptional features :<br \/>\nClass VI\u00a0 metal seated<br \/>\nQuick change type<br \/>\nExtended stem<br \/>\nCage guide ,Top guide, Cage retained seat<br \/>\nDouble packing design<br \/>\nNACE MR-0175<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Ball valve<\/li>\n<\/ul>\n<p>Size: 1\/2\u201d~40\u201d(DN15~DN1000)<br \/>\nRating:150Lb~2500Lb(PN16~PN420)<br \/>\nMaterials: Carbon steel \/Stainless steel \/ Alloy steel \/Special ( Monel\u00a0 \/Inconel \/Hastelly\u00a0 etc.)<br \/>\nalloy steel<br \/>\nEnd connection :RF\/RTJ\/BW<br \/>\nOperation: Motor\/pneumatic actuators<br \/>\nOptional features :<br \/>\nClass V\/VI\u00a0 metal seated<br \/>\nQuick change type<br \/>\nNACE MR-0175<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Butterfly valve<\/li>\n<\/ul>\n<p>Size: 2\u201d~40\u201d(DN50~DN1000)<br \/>\nRating:150Lb~2500Lb(PN16~PN420)<br \/>\nMaterials: Carbon steel \/Stainless steel \/ Alloy steel \/Special ( Monel\u00a0 \/Inconel \/Hastelly\u00a0 etc.)<br \/>\nalloy steel<br \/>\nEnd connection :RF\/RTJ\/BW<br \/>\nOperation: Motor\/pneumatic actuators<br \/>\nOptional features :<br \/>\nClass V\u00a0 metal seated<br \/>\nQuick change type<br \/>\nExtended stem<br \/>\nTriple eccentric type segmental ball disc<br \/>\nDouble packing design<br \/>\nNACE MR-0175<\/p>\n<p>[\/vc_column_text][vc_empty_space][vc_text_separator title=&#8221;Submerged Arc Welded Pipes (SAW)&#8221; css_animation=&#8221;bounceIn&#8221; border=&#8221;no&#8221;][vc_column_text]<\/p>\n<ul>\n<li>Normal Size Range: 18&#8243; &#8211; 80&#8243; &#8211; Thickness: 5.6 mm to 60mm.<\/li>\n<li>Large Size Range: 82&#8243; &#8211; 122&#8243; &#8211; Thickness: 10 mm to 85mm.<\/li>\n<li>Length: up to 12.5 meters (it is possible to supply up to 25 meters using circumferential butt welding)<\/li>\n<li>Standards: API 5L grade B, X42, X46, X52, X56, X60, X65, X70, X80, ASTM A515, A516, A387, A672 B65, A671 grade CC60\/65, A682 C70, BS7191, EN 10225.<\/li>\n<\/ul>\n<p>[\/vc_column_text][vc_empty_space][vc_text_separator title=&#8221;High Frequency Welded Pipes (HFW)&#8221; css_animation=&#8221;bounceIn&#8221; border=&#8221;no&#8221;][vc_column_text]<\/p>\n<ul>\n<li>Size Range: 6&#8243; to 16&#8243;<\/li>\n<li>Thickness: 3.20 to 12.70mm<\/li>\n<li>Ends: 2&#8243; below plain ends, 2&#8243; above beveled ends. Threaded ends are usually available upon request from client.<\/li>\n<li>Standards: ASTM A-53, A135, 500, A513, A523, A847, A984, API 5L, IS-1161, 1239, 1978, 3589, 3601, 4270.<\/li>\n<\/ul>\n<p>[\/vc_column_text][vc_empty_space][vc_text_separator title=&#8221;Electric Resistance Welded Pipes (ERW)&#8221; css_animation=&#8221;bounceIn&#8221; border=&#8221;no&#8221;][vc_column_text]<\/p>\n<ul>\n<li>Size Range: 2 \u00bd&#8221; &#8211; 24&#8243;<\/li>\n<li>Thickness: 2 to 20mm<\/li>\n<li>Ends: 2&#8243; below plain ends, 2&#8243; above beveled ends. Threaded ends are also available upon request.<\/li>\n<li>Standard: API 5L grade A, B, X42, X46, X52, X56, X60, X65, X70, ASTM A53, A106, A500, A513, A523, A847, A984<\/li>\n<\/ul>\n<p>[\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;full_width&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221;][vc_column width=&#8221;1\/4&#8243;][\/vc_column][vc_column width=&#8221;1\/4&#8243;][vc_empty_space][vc_column_text]<\/p>\n<h2><strong>Applications:<\/strong><\/h2>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243;][vc_empty_space][vc_column_text]<\/p>\n<ul>\n<li>Pipelines for oil and gas<\/li>\n<li>Construction and Piles<\/li>\n<li>Natural Gas transmission<\/li>\n<li>Oil and Gas Refineries<\/li>\n<li>Petrochemical plants<\/li>\n<li>Electric Power Plants<\/li>\n<\/ul>\n<p>[\/vc_column_text][vc_empty_space][\/vc_column][vc_column width=&#8221;1\/4&#8243;][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[vc_row css_animation=&#8221;&#8221; row_type=&#8221;row&#8221; use_row_as_full_screen_section=&#8221;no&#8221; type=&#8221;grid&#8221; angled_section=&#8221;no&#8221; text_align=&#8221;left&#8221; background_image_as_pattern=&#8221;without_pattern&#8221; padding_top=&#8221;94&#8243; padding_bottom=&#8221;40&#8243; anchor=&#8221;portfolio&#8221; background_color=&#8221;#f7f7f7&#8243;][vc_column][vc_text_separator title=&#8221;Control Valves&#8221; css_animation=&#8221;bounceIn&#8221; border=&#8221;no&#8221;][vc_column_text] V-ball Control Valve V-ball control valves are composed of V-notch ball valve\u3001actuator and other accessories. It utilizes compressed air forcing stem to drive the ball rotating 90\u00ec in the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":16619,"menu_order":0,"comment_status":"open","ping_status":"open","template":"full_width.php","meta":{"footnotes":""},"class_list":["post-16632","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/pages\/16632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/comments?post=16632"}],"version-history":[{"count":3,"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/pages\/16632\/revisions"}],"predecessor-version":[{"id":16809,"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/pages\/16632\/revisions\/16809"}],"up":[{"embeddable":true,"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/pages\/16619"}],"wp:attachment":[{"href":"https:\/\/www.petrozas.com\/index.php\/wp-json\/wp\/v2\/media?parent=16632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}