{"id":70,"date":"2026-10-05T20:14:54","date_gmt":"2026-10-05T12:14:54","guid":{"rendered":"http:\/\/runda-hitech.com\/?page_id=70"},"modified":"2026-10-05T21:09:36","modified_gmt":"2026-10-05T13:09:36","slug":"oil-gas","status":"publish","type":"page","link":"https:\/\/runda-hitech.com\/index.php\/applications\/oil-gas\/","title":{"rendered":"Oil &#038; Gas Instrumentation Valves &#038; Fittings"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull rlok-hero\" style=\"min-height:430px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\"><\/span><img decoding=\"async\" class=\"wp-block-cover__image-background\" alt=\"\" src=\"http:\/\/runda-hitech.com\/wp-content\/uploads\/2026\/10\/r-lok-hero-background.jpg\" data-object-fit=\"cover\"\/><div class=\"wp-block-cover__inner-container has-global-padding is-layout-constrained wp-block-cover-is-layout-constrained\">\n<h1 class=\"wp-block-heading\">Oil &amp; Gas Instrumentation Valves &amp; Fittings<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Sour gas, sand and hydrate reach the instrument before the control room. Changsha Runda Hitech Co., Ltd. is a supplier and sourcing partner for the interface from Christmas tree to loading arm: valves, manifolds, filters and regulators. Bodies are 316 stainless to 6,000 psig (413 bar), and the SBLV bleed valve to 10,000 psig, from 1\/16 in to 2 in (1.6 mm to 50.8 mm).<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/index.php\/contact\/\">Request a quote<\/a><\/div>\n\n<div class=\"wp-block-button is-style-outline\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/index.php\/products\/\">Browse products<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group rlok-body has-global-padding is-layout-constrained wp-container-core-group-is-layout-b8954cbe wp-block-group-is-layout-constrained\" style=\"border-radius:0px\">\n<p class=\"wp-block-paragraph\"><span class=\"rlok-fallback-nav\"><a href=\"\/index.php\/products\/\">Products<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/applications\/\">Applications<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/quality\/\">Quality<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/resources\/\">Resources<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/about\/\">About<\/a> &nbsp;&middot;&nbsp; <a href=\"\/index.php\/contact\/\">Contact<\/a><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"rlok-bc\"><a href=\"\/index.php\/\">Home<\/a> &rsaquo; <a href=\"\/index.php\/applications\/\">Applications<\/a> &rsaquo; <strong>Oil &amp; Gas<\/strong><\/span><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-6ac5c474 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Key features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SBLV bleed valve rated 10,000 psig (689 bar) at 100 F.<\/li>\n\n<li>Needle orifices 2.0 mm to 11 mm (Cv 0.09 to 2.2) for sand duty.<\/li>\n\n<li>Manifolds in 2, 3 and 5-valve patterns, 3.2 mm or 6.4 mm bore.<\/li>\n\n<li>Ball valves in 1,000, 3,000 and 6,000 psig (69, 206 and 414 bar) classes.<\/li>\n\n<li>316 stainless standard; alloy 400, 20, 600, C-276 for sour and chloride duty.<\/li>\n\n<li>0.5 to 90 micron sintered 316 elements for sand and scale protection.<\/li>\n<\/ul>\n<\/div>\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th>Parameter<\/th><th>Value<\/th><\/tr><\/thead><tbody><tr><td>Threads<\/td><td>ASME B1.20.1 (NPT), ISO 7\/1 taper, ISO 228 parallel<\/td><\/tr><tr><td>Needle valves<\/td><td>6,000 psig (413 bar) on 316 at 100 F; orifices 2 to 11 mm<\/td><\/tr><tr><td>Fittings<\/td><td>tube ends 1\/16 in to 2 in (1.6 to 50.8 mm), double-ferrule and metric<\/td><\/tr><tr><td>Temperature<\/td><td>-325 F to 1,200 F (-198 to 648 C), by packing and seal<\/td><\/tr><tr><td>Bleed valve<\/td><td>SBLV rated 10,000 psig (689 bar) at 100 F, 6,085 psig at 850 F<\/td><\/tr><tr><td>Manifolds<\/td><td>2, 3 or 5-valve, direct or remote-mount, 1\/2 in NPT ports, 3.2 mm bore<\/td><\/tr><tr><td>Hose assemblies<\/td><td>corrugated 316 core with braid, 1\/4 in to 2 in bore, 1,600 psig<\/td><\/tr><tr><td>Relief valves<\/td><td>SRVL 10 to 250 psig; SRVH 225 to 6,000 psig; A182 F316 bodies<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Wellhead and sour well hook-ups<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Wellhead and Christmas-tree lines tap the full wellstream at near shut-in pressure. A needle valve isolates the gauge or transmitter, a gauge valve with bleed port vents the trapped volume. The transmitter sits on a 2 or 3-valve manifold; sour wells use a 5-valve manifold.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sand erodes soft seats and settles in valve pockets and manifold bores. On sand-prone wells the selection stays metal-seated, the manifold bore stays at 6.4 mm (0.25 in) so it can be flushed, and a 60 or 90 micron filter sits ahead.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Gathering, metering and terminal duty<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Check valves protect compressor suction and discharge from reverse flow: SPCV covers 3,000 psig (207 bar), SHCV 6,000 psig (414 bar). Filters sit ahead of analyser houses and fuel gas skids, regulators hold instrument air at actuator pressure, and quick connectors change a calibration bottle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metering and custody transfer are decided by the impulse line. Orifice and ultrasonic runs use differential pressure transmitters on 3 or 5-valve manifolds with 3.2 or 6.4 mm bores. Sampling uses bleed and plug valves; plug valves reach Cv 6.4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Environment, sour service and materials<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sour service material selection is referenced to NACE MR0175 \/ ISO 15156. It sets hardness and heat treatment limits for wetted parts, the basis is agreed in writing, and hardness records or material certificates are named on the order.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Desert UV degrades seals and sand abrades threads, while high ambient lowers the rating. Coastal sites: 316 stainless covers instrument duty, and alloy 400, alloy 20, alloy 600 or C-276 are quoted for sour and seawater service.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Standards referenced:<\/strong> Sour service material selection referenced to NACE MR0175 \/ ISO 15156 as a design basis where the project specification invokes it; Pressure and temperature ratings referenced to ASME B16.34 practice for valves, and impulse tubing and small-bore piping to ASME B31.3 process piping practice; Stainless bar and forged stock referenced to ASTM A276 \/ A182 \/ A479, mill certificates to EN 10204 3.1 on request; pressure test methods referenced to API 598 where the order defines the test standard.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Typical duties:<\/strong> Wellhead, Christmas-tree and test package instrument lines; Sand-prone and high-pressure gauge and transmitter hook-ups; Gas gathering lines, compressor and pump station skids; Metering and custody-transfer skids, orifice and ultrasonic runs; Methanol, glycol and chemical injection points; Tank farms, loading arms and pig launcher traps.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Recommended product families<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"\/index.php\/products\/valves\/needle-valves\/\">Needle Valves<\/a><\/li>\n\n<li><a href=\"\/index.php\/products\/valves\/ball-valves\/\">Ball Valves<\/a><\/li>\n\n<li><a href=\"\/index.php\/products\/valves\/gauge-valves-manifolds\/\">Gauge Valves &amp; Manifolds<\/a><\/li>\n\n<li><a href=\"\/index.php\/products\/tube-fittings\/double-ferrule-fittings\/\">Double Ferrule Fittings<\/a><\/li>\n\n<li><a href=\"\/index.php\/products\/fluid-control-accessories\/hoses-hose-fittings\/\">Hose Assemblies<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Can you supply sour service components to NACE MR0175 \/ ISO 15156?<\/summary>\n<p class=\"wp-block-paragraph\">We source 316 stainless as standard and alloy 400, 20, 600 and C-276 bodies against a stated sour service design basis, with material certificates and hardness records where the order names them. NACE MR0175 \/ ISO 15156 is a design reference, not a certificate.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Which material should I choose for desert, coastal or offshore service?<\/summary>\n<p class=\"wp-block-paragraph\">316 stainless covers most instrument duty, including hot desert sites where the pressure rating is taken at higher ambient temperature. Alloy 400, alloy 20, alloy 600 and C-276 are quoted for chloride or seawater-wetted locations. State the UV and sand exposure: seals degrade, threads abrade.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What documents and test records come with a shipment?<\/summary>\n<p class=\"wp-block-paragraph\">A material certificate with heat numbers, dimensional inspection reports and a certificate of origin are supplied on request; pressure or leak test records follow when the order defines the method and acceptance criteria. Name the document list and any third-party inspection in the order.<\/p>\n<\/details>\n<\/div>\n\n\n\n<div class=\"wp-block-group alignfull rlok-cta has-global-padding is-layout-constrained wp-container-core-group-is-layout-c4390f02 wp-block-group-is-layout-constrained\" style=\"border-radius:0px\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-container-core-group-is-layout-b097105c wp-block-group-is-layout-constrained\" style=\"border-radius:0px\">\n<h2 class=\"wp-block-heading\">Request a quote or technical clarification<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Send us the model, size, material and quantity you need &mdash; or a photo of the existing part. We reply with a quotation, availability and the applicable documents, usually within one working day.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"mailto:nimo@runda-hitech.com\">Email nimo@runda-hitech.com<\/a><\/div>\n\n<div class=\"wp-block-button is-style-outline\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/wa.me\/8613657416007\">WhatsApp +86 136 5741 6007<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Tel \/ WhatsApp: +86 136 5741 6007 &middot; Email: nimo@runda-hitech.com<\/p>\n<\/div>\n<\/div>\n\n\n\n<style>img{max-width:100%;height:auto}.wp-block-table{max-width:100%}.rlok-bc{display:block;font-size:13px;letter-spacing:.01em;color:#5a6b7d;margin:0 0 26px}.rlok-bc a{color:#0b2545;text-decoration:none}.rlok-bc a:hover{color:#c8102e;text-decoration:underline}.rlok-bc strong{color:#0b2545}.rlok-fallback-nav{display:block;border-bottom:1px solid #dde3ea;padding-bottom:12px;margin:0 0 18px;font-size:14.5px;font-weight:600}.rlok-fallback-nav a{color:#0b2545;text-decoration:none}.rlok-fallback-nav a:hover{color:#c8102e;text-decoration:underline}@media (max-width:782px){.rlok-hero{min-height:330px!important;padding-left:18px!important;padding-right:18px!important}.rlok-hero h1{font-size:26px;line-height:1.22}.rlok-hero p{font-size:15.5px}.rlok-body{padding:30px 18px 12px!important}.rlok-cta{padding:38px 18px!important}.rlok-cta h2{font-size:22px}.rlok-bc{font-size:12.5px;margin-bottom:18px}.wp-block-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}.wp-block-table table{min-width:520px;font-size:13px}.wp-block-table th,.wp-block-table td{padding:7px 9px}.wp-block-columns{gap:1.1rem;margin-bottom:1.3rem}.wp-block-button{width:100%}.wp-block-button__link{width:100%;text-align:center}h2.wp-block-heading{font-size:22px}h3.wp-block-heading{font-size:19px}.wp-block-details{padding:12px 14px}}<\/style><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"http:\/\/runda-hitech.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Applications\", \"item\": \"http:\/\/runda-hitech.com\/applications\/\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Oil & Gas\", \"item\": \"http:\/\/runda-hitech.com\/applications\/oil-gas\/\"}]}<\/script>\n\n\n<!-- VERIFY BEFORE PUBLISHING: Confirm that RUNDA is published only as a supplier and sourcing partner; no production, factory, staff or equipment claim appears on this page. | Confirm that no certificate (ISO 9001, API, CE, PED, ATEX or similar) is named anywhere. NACE MR0175 \/ ISO 15156, ASME B1.20.1, B16.34, B31.3, ASTM and API 598 appear as design and manufacturing references only. | Confirm the catalogue pressure ceiling of 6,000 psig (413 bar) for needle valve bodies in 316 and the exact size, seat and temperature basis it applies to; the site must publish one figure, and 413 bar versus 414 bar differs between existing pages. | Confirm the SBLV derating figures of 10,000 \/ 7,705 \/ 6,085 psig at 100 \/ 400 \/ 850 \u00b0F against the current data sheet before the high-pressure claim is published, and whether the same figures apply to the SPUV purge valve. | Confirm that alloy 400, alloy 20, alloy 600 and alloy C-276 bodies can genuinely be sourced for the needle valve range, with the lead time and minimum quantity for each. | Confirm whether sour-service supply to NACE MR0175 \/ ISO 15156 can be documented with hardness testing records, and whether RUNDA issues them or relies on the upstream supplier's certificate. No sour-service capability should be promoted before this is confirmed. | Confirm the hose assembly figures of 1,600 psig (110 bar) working pressure and -325 \u00b0F to 800 \u00b0F before they are published, and whether a burst pressure or test certificate can be issued. | Confirm whether inline filters are shell tested at 1.5 times rated working pressure and whether a test record can be issued per order. | Confirm that EN 10204 3.1 mill certificates and dimensional inspection records are standard or chargeable, and which mill or stockist supplies the certified material. | Confirm typical minimum order quantities and lead times for catalogue items against configured hook-up assemblies and cut-to-length hose assemblies, plus the accepted Incoterms and payment terms, so the FAQ answers can state firm figures. | Confirm whether offshore-specific documentation, preservation or coating requirements can be met before any offshore project claim is added. | Confirm that all image slots use owner or licensed photography; catalogue images are supplier-owned and watermarked and must not be published. -->\n\n<!-- build: slug=oil-gas type=industry keywords=oil and gas instrument valve supplier, wellhead instrument hook-up assembly supplier, 3 valve manifold for differential pressure transmitter, sour service instrument valves NACE MR0175, sand service needle valve metal seat, custody transfer metering skid fittings supplier, high pressure bleed valve 10000 psi, gas gathering compressor station instrument fittings, tank farm loading arm hose assembly supplier, pig launcher receiver instrument valves, alloy C-276 instrument valve supplier China, oil and gas instrumentation export packing Middle East -->","protected":false},"excerpt":{"rendered":"<p>Oil &#038; gas instrument valves, manifolds, fittings and hoses for wellhead, gathering, metering, terminal duty to 10,000 psig, 316 or C-276. Request a quote.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":28,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-70","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages\/70","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/comments?post=70"}],"version-history":[{"count":10,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages\/70\/revisions"}],"predecessor-version":[{"id":425,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages\/70\/revisions\/425"}],"up":[{"embeddable":true,"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/pages\/28"}],"wp:attachment":[{"href":"https:\/\/runda-hitech.com\/index.php\/wp-json\/wp\/v2\/media?parent=70"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}