{"id":1193,"date":"2026-10-05T06:58:53","date_gmt":"2026-10-05T06:58:53","guid":{"rendered":"https:\/\/wdlvalve.com\/?p=1193"},"modified":"2026-10-08T07:17:52","modified_gmt":"2026-10-08T07:17:52","slug":"%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b9%80%e0%b8%a5%e0%b8%b7%e0%b8%ad%e0%b8%81%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%97%e0%b8%b5%e0%b9%88%e0%b8%a1%e0%b8%b5%e0%b8%a3%e0%b8%b0%e0%b8%94%e0%b8%b1-2","status":"publish","type":"post","link":"https:\/\/wdlvalve.com\/th\/%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b9%80%e0%b8%a5%e0%b8%b7%e0%b8%ad%e0%b8%81%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%97%e0%b8%b5%e0%b9%88%e0%b8%a1%e0%b8%b5%e0%b8%a3%e0%b8%b0%e0%b8%94%e0%b8%b1-2\/","title":{"rendered":"\u0e01\u0e32\u0e23\u0e40\u0e25\u0e37\u0e2d\u0e01\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e17\u0e35\u0e48\u0e21\u0e35\u0e23\u0e30\u0e14\u0e31\u0e1a\u0e01\u0e32\u0e23\u0e1b\u0e25\u0e48\u0e2d\u0e22\u0e01\u0e4a\u0e32\u0e0b\u0e15\u0e48\u0e33: 7 \u0e02\u0e31\u0e49\u0e19\u0e15\u0e2d\u0e19\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e17\u0e35\u0e48\u0e44\u0e14\u0e49\u0e23\u0e31\u0e1a\u0e01\u0e32\u0e23\u0e1e\u0e34\u0e2a\u0e39\u0e08\u0e19\u0e4c\u0e41\u0e25\u0e49\u0e27\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e44\u0e2e\u0e42\u0e14\u0e23\u0e40\u0e08\u0e19 \u0e01\u0e4a\u0e32\u0e0b\u0e18\u0e23\u0e23\u0e21\u0e0a\u0e32\u0e15\u0e34 \u0e41\u0e25\u0e30\u0e23\u0e30\u0e1a\u0e1a CCUS"},"content":{"rendered":"<p><!-- Focus Keyword: Low Emission Valve Selection SEO Title: Low Emission Valve Selection: 7 Proven Checks Permalink: low-emission-valve-selection-hydrogen-ccus Meta Description: Low Emission Valve Selection guide for hydrogen, natural gas and CCUS. Compare standards, materials, packing and tests before specifying valves. --><\/p>\n<article style=\"max-width: 1180px; margin: 0 auto; padding: 20px; font-family: Arial,Helvetica,sans-serif; color: #1f2937; line-height: 1.75; box-sizing: border-box;\">\n<header>\n<p style=\"font-size: 18px; margin: 0 0 22px;\"><strong>Low Emission Valve Selection<\/strong> begins with the fluid, pressure, temperature, operating cycles and required emissions test standard. For hydrogen, natural gas and CCUS service, select the complete valve assembly by checking the body joints, stem or shaft seal, gasket, surface finish, bolting, actuator loads and production test records.<\/p>\n<p><a style=\"display: block; text-decoration: none;\" href=\"https:\/\/wdlvalve.com\/th\/product\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%9c%e0%b8%b5%e0%b9%80%e0%b8%aa%e0%b8%b7%e0%b9%89%e0%b8%ad%e0%b9%81%e0%b8%9a%e0%b8%9a%e0%b9%81%e0%b8%9c%e0%b9%88%e0%b8%99-wafer-%e0%b9%81%e0%b8%9a\/\"><br \/>\n<img fetchpriority=\"high\" decoding=\"async\" style=\"display: block; width: 100%; max-width: 760px; height: auto; margin: 0 auto 24px; border: 1px solid #d1d5db; border-radius: 8px;\" src=\"https:\/\/wdlvalve.com\/wp-content\/uploads\/2026\/10\/images.jpg\" alt=\"Low Emission Valve Selection for WDL triple offset butterfly valve systems\" width=\"630\" height=\"570\" \/><br \/>\n<\/a><\/p>\n<\/header>\n<aside style=\"padding: 18px 20px; margin: 0 0 26px; border-left: 5px solid #1473b8; background: #eef7fc;\"><strong>Why this topic matters in 2026:<\/strong> hydrogen projects, methane-reduction programs and CCUS pipelines are increasing attention on valve stem leakage, seal compatibility and documented qualification. Buyers now ask not only whether a valve shuts off internally, but also how external leakage has been tested and recorded.<\/aside>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">What Is a Low-Emission Industrial Valve?<\/h2>\n<p>A low-emission industrial valve is designed and tested to limit external leakage through the stem or shaft seal and body joints. Fugitive emissions are different from seat leakage: seat leakage passes through a closed valve, while fugitive emissions escape from the pressure boundary into the atmosphere.<\/p>\n<p>The purchase specification must identify which requirement applies. API 598 or another pressure-test standard does not replace a fugitive-emissions qualification standard. A valve can pass a conventional shell and seat test without having completed low-emission type testing.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">Low Emission Valve Selection: Which Fugitive-Emission Standards Apply?<\/h2>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 16px 0 24px;\">\n<table style=\"width: 100%; min-width: 780px; border-collapse: collapse; border: 1px solid #111!important; background: #fff;\" border=\"1\" rules=\"all\" cellspacing=\"0\" cellpadding=\"10\">\n<thead style=\"background: #eaf2f8;\">\n<tr>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Standard<\/th>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Main Purpose<\/th>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Typical Use<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>ISO 15848-1<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Classification and type-testing procedures for external leakage<\/td>\n<td style=\"border: 1px solid #111!important;\">Isolation and control valve qualification<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>ISO 15848-2<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Production acceptance testing<\/td>\n<td style=\"border: 1px solid #111!important;\">Specified production valves<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>API 624<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Type testing of rising-stem valves fitted with flexible graphite packing<\/td>\n<td style=\"border: 1px solid #111!important;\">Gate and globe valve designs<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>API 641<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Type testing of quarter-turn valves<\/td>\n<td style=\"border: 1px solid #111!important;\">Ball, butterfly and plug valves<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>API 622<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Type testing of process-valve packing<\/td>\n<td style=\"border: 1px solid #111!important;\">Packing qualification rather than complete-valve qualification<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><a href=\"https:\/\/www.iso.org\/standard\/61441.html\" target=\"_blank\" rel=\"noopener noreferrer\">ISO 15848-1<\/a> covers type testing of valve stem seals and body joints. <a href=\"https:\/\/www.iso.org\/standard\/61442.html\" target=\"_blank\" rel=\"noopener noreferrer\">ISO 15848-2<\/a> covers production acceptance testing. The specified edition, leakage class, temperature class, endurance class and test fluid should be written into the valve datasheet rather than left as a general note.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">Why Is Hydrogen Valve Selection Different?<\/h2>\n<p>Low Emission Valve Selection for hydrogen service requires attention to external leakage, nonmetallic seal compatibility, material behavior, fire-safe design, antistatic continuity and high-pressure gas testing. Small leakage paths that may be tolerated in another gas service can become unacceptable in a hydrogen system.<\/p>\n<p>API added hydrogen gas provisions to API 6D, including design validation, material requirements and supplemental testing. This does not mean every API 6D valve is automatically suitable for hydrogen. The purchaser must specify hydrogen concentration, pressure, temperature, operating cycles, decompression rate, material restrictions and the required edition or annex.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">What Changes for Natural Gas and Methane Service?<\/h2>\n<p>Natural gas systems often contain hundreds or thousands of valves, so small individual leaks can become a significant plant-wide loss. Valve selection should therefore be connected to the site Leak Detection and Repair program, commonly called LDAR.<\/p>\n<p>The practical goal is to prevent chronic leakage rather than rely only on periodic repair. Packing selection, correct gland loading, accessible monitoring points and traceable test records make the valve easier to manage throughout its operating life.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">What Should Be Checked for CCUS Valves?<\/h2>\n<p>For CCUS projects, Low Emission Valve Selection must account for dense-phase or gaseous CO\u2082, impurities, moisture, pressure changes and low temperatures during rapid depressurization. Wet CO\u2082 can increase corrosion risk, while decompression can challenge elastomeric and polymer sealing components.<\/p>\n<p>A CCUS valve specification should define the CO\u2082 phase, water content, expected impurities, pressure-temperature envelope and blowdown conditions. Material and seal decisions cannot be made from the word \u201cCO\u2082\u201d alone.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">How Do Valve Type and Stem Motion Affect Emissions?<\/h2>\n<div style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 16px 0 24px;\">\n<table style=\"width: 100%; min-width: 800px; border-collapse: collapse; border: 1px solid #111!important; background: #fff;\" border=\"1\" rules=\"all\" cellspacing=\"0\" cellpadding=\"10\">\n<thead style=\"background: #eaf2f8;\">\n<tr>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">\u0e1b\u0e23\u0e30\u0e40\u0e20\u0e17\u0e27\u0e32\u0e25\u0e4c\u0e27<\/th>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Stem Motion<\/th>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Low-Emission Design Focus<\/th>\n<th style=\"border: 1px solid #111!important; text-align: left;\" scope=\"col\">Common Duty<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><a href=\"https:\/\/wdlvalve.com\/th\/product-category\/%e0%b8%9b%e0%b8%a3%e0%b8%b0%e0%b9%80%e0%b8%a0%e0%b8%97%e0%b8%82%e0%b8%ad%e0%b8%87%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7\/gate-valves\/\">Gate valve<\/a><\/td>\n<td style=\"border: 1px solid #111!important;\">Linear, rising or non-rising depending on design<\/td>\n<td style=\"border: 1px solid #111!important;\">Packing chamber geometry, stem finish, gland loading and cycle qualification<\/td>\n<td style=\"border: 1px solid #111!important;\">Full-bore isolation<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><a href=\"https:\/\/wdlvalve.com\/th\/product-category\/%e0%b8%9b%e0%b8%a3%e0%b8%b0%e0%b9%80%e0%b8%a0%e0%b8%97%e0%b8%82%e0%b8%ad%e0%b8%87%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b9%81%e0%b8%9a%e0%b8%9a%e0%b8%a5%e0%b8%b9%e0%b8%81%e0%b9%82%e0%b8%a5%e0%b8%81\/\">Globe valve<\/a><\/td>\n<td style=\"border: 1px solid #111!important;\">Linear and frequently cycled<\/td>\n<td style=\"border: 1px solid #111!important;\">Packing stability during repeated stem travel<\/td>\n<td style=\"border: 1px solid #111!important;\">Isolation and throttling<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><a href=\"https:\/\/wdlvalve.com\/th\/product-category\/%e0%b8%9b%e0%b8%a3%e0%b8%b0%e0%b9%80%e0%b8%a0%e0%b8%97%e0%b8%82%e0%b8%ad%e0%b8%87%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%a5%e0%b8%b9%e0%b8%81%e0%b8%9a%e0%b8%ad%e0%b8%a5\/\">Ball valve<\/a><\/td>\n<td style=\"border: 1px solid #111!important;\">Quarter-turn rotary<\/td>\n<td style=\"border: 1px solid #111!important;\">Stem seals, antistatic path, cavity pressure and body-joint sealing<\/td>\n<td style=\"border: 1px solid #111!important;\">Rapid isolation and emergency shutdown<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><a href=\"https:\/\/wdlvalve.com\/th\/product-category\/%e0%b8%9b%e0%b8%a3%e0%b8%b0%e0%b9%80%e0%b8%a0%e0%b8%97%e0%b8%82%e0%b8%ad%e0%b8%87%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%9c%e0%b8%b5%e0%b9%80%e0%b8%aa%e0%b8%b7%e0%b9%89%e0%b8%ad\/\">Butterfly valve<\/a><\/td>\n<td style=\"border: 1px solid #111!important;\">Quarter-turn rotary<\/td>\n<td style=\"border: 1px solid #111!important;\">Shaft seals, bearing loads and actuator alignment<\/td>\n<td style=\"border: 1px solid #111!important;\">Large-line isolation or control<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #111!important;\"><strong>Bellows-sealed valve<\/strong><\/td>\n<td style=\"border: 1px solid #111!important;\">Linear with a welded bellows pressure boundary<\/td>\n<td style=\"border: 1px solid #111!important;\">Bellows cycle life, weld integrity and backup packing<\/td>\n<td style=\"border: 1px solid #111!important;\">Toxic, hazardous or high-purity media<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">7 Low Emission Valve Selection Checks Before Ordering<\/h2>\n<ol style=\"padding-left: 22px;\">\n<li><strong>Define the fluid completely.<\/strong> State hydrogen or CO\u2082 concentration, methane content, water, H\u2082S, particles and other impurities.<\/li>\n<li><strong>Provide the full pressure-temperature envelope.<\/strong> Include normal operation, startup, shutdown, blowdown and upset conditions.<\/li>\n<li><strong>Name the emissions standard.<\/strong> Specify ISO 15848-1, ISO 15848-2, API 624, API 641 or another project requirement as applicable.<\/li>\n<li><strong>Specify the required qualification.<\/strong> Record leakage class, endurance cycles, temperature range, test fluid and production acceptance requirements.<\/li>\n<li><strong>Review every sealing material.<\/strong> Check packing, stem seals, body gaskets, seat inserts and O-rings, not only the body and trim metallurgy.<\/li>\n<li><strong>Define actuation and operating frequency.<\/strong> State manual or automated operation, fail position, closing time, cycle rate and maximum differential pressure.<\/li>\n<li><strong>Request traceable documentation.<\/strong> Agree on certificates, test reports, material records, inspection points and approved drawings before production.<\/li>\n<\/ol>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">Common Specification Mistakes<\/h2>\n<h3 style=\"font-size: 21px; color: #173f67;\">Calling a valve \u201czero leakage\u201d without naming the boundary<\/h3>\n<p>Internal seat leakage and external fugitive emissions are separate requirements. The datasheet should state both when both matter.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">Specifying approved packing but not a qualified valve assembly<\/h3>\n<p>Packing test data is useful, but the complete valve also depends on the packing chamber, stem finish, gland design, bolting and assembly procedure.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">Using a standard material list for hydrogen or CCUS<\/h3>\n<p>Material compatibility must be reviewed against composition, pressure, temperature and decompression conditions. A generic body-material callout does not cover every seal and pressure-boundary component.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">Selecting the actuator after the valve is built<\/h3>\n<p>Stem and packing friction affect required torque or thrust. Actuator sizing should use the final valve construction and worst operating differential pressure.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">What Should a Manufacturer Confirm?<\/h2>\n<p>A useful quotation should identify the valve type, size, pressure class, materials, packing and gasket arrangement, applicable emissions standard, actuator data and testing scope. Any deviation from the enquiry should be listed clearly.<\/p>\n<p>WDL Valve supplies <a href=\"https:\/\/wdlvalve.com\/th\/product-category\/%e0%b8%9b%e0%b8%a3%e0%b8%b0%e0%b9%80%e0%b8%a0%e0%b8%97%e0%b8%82%e0%b8%ad%e0%b8%87%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%a5%e0%b8%b9%e0%b8%81%e0%b8%9a%e0%b8%ad%e0%b8%a5\/\">\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e25\u0e39\u0e01\u0e1a\u0e2d\u0e25<\/a>, <a href=\"https:\/\/wdlvalve.com\/th\/product-category\/%e0%b8%9b%e0%b8%a3%e0%b8%b0%e0%b9%80%e0%b8%a0%e0%b8%97%e0%b8%82%e0%b8%ad%e0%b8%87%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7\/gate-valves\/\">gate valves<\/a>, <a href=\"https:\/\/wdlvalve.com\/th\/product-category\/%e0%b8%9b%e0%b8%a3%e0%b8%b0%e0%b9%80%e0%b8%a0%e0%b8%97%e0%b8%82%e0%b8%ad%e0%b8%87%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b9%81%e0%b8%9a%e0%b8%9a%e0%b8%a5%e0%b8%b9%e0%b8%81%e0%b9%82%e0%b8%a5%e0%b8%81\/\">\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e41\u0e1a\u0e1a\u0e25\u0e39\u0e01\u0e42\u0e25\u0e01<\/a>, <a href=\"https:\/\/wdlvalve.com\/th\/product-category\/%e0%b8%9b%e0%b8%a3%e0%b8%b0%e0%b9%80%e0%b8%a0%e0%b8%97%e0%b8%82%e0%b8%ad%e0%b8%87%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%9c%e0%b8%b5%e0%b9%80%e0%b8%aa%e0%b8%b7%e0%b9%89%e0%b8%ad\/\">\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e1c\u0e35\u0e40\u0e2a\u0e37\u0e49\u0e2d<\/a> and check valves in carbon steel, stainless steel, duplex, super duplex and selected special alloys. Low-emission, hydrogen or CCUS suitability must be confirmed for the exact project specification rather than assumed from the valve type.<\/p>\n<\/section>\n<section>\n<h2 style=\"font-size: 28px; line-height: 1.3; color: #0b2f55;\">\u0e04\u0e33\u0e16\u0e32\u0e21\u0e17\u0e35\u0e48\u0e21\u0e31\u0e01\u0e16\u0e39\u0e01\u0e16\u0e32\u0e21<\/h2>\n<h3 style=\"font-size: 21px; color: #173f67;\">Does API 598 certify a valve for low fugitive emissions?<\/h3>\n<p>No. API 598 addresses valve inspection and pressure testing. Fugitive-emissions qualification requires a relevant standard such as ISO 15848-1, API 624 or API 641, as specified by the purchaser.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">Which standard applies to ball and butterfly valves?<\/h3>\n<p>API 641 is intended for quarter-turn valves. ISO 15848-1 can also apply to isolation and control valves when its classification and test requirements are specified.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">Which standard applies to rising-stem gate and globe valves?<\/h3>\n<p>API 624 covers type testing of rising-stem valves fitted with flexible graphite packing. ISO 15848-1 may also be specified depending on the project.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">Is every low-emission valve suitable for hydrogen?<\/h3>\n<p>No. Low external leakage is only one part of hydrogen suitability. Materials, seals, fire-safe design, antistatic requirements, pressure rating and hydrogen-specific validation must also be reviewed.<\/p>\n<h3 style=\"font-size: 21px; color: #173f67;\">What information should be sent for Low Emission Valve Selection?<\/h3>\n<p>Send the fluid composition, pressure, temperature, size, pressure class, operating cycles, valve function, emissions standard, required tests, actuator data and documentation requirements. These details let the manufacturer review the valve assembly against the actual low emission valve selection requirements.<\/p>\n<\/section>\n<section style=\"margin-top: 30px; padding: 24px; background: #0b2f55; color: #fff; border-radius: 8px; text-align: center;\">\n<h2 style=\"margin: 0 0 10px; font-size: 27px; color: #fff;\">Discuss Your Low-Emission Valve Specification<\/h2>\n<p style=\"margin: 0 0 18px;\">Send WDL Valve the process medium, pressure-temperature range, valve type, emissions standard and actuation requirements for a project review. For broader high-risk duties, review our <a style=\"color:#fff;text-decoration:underline;\" href=\"https:\/\/wdlvalve.com\/th\/%e0%b8%9c%e0%b8%b9%e0%b9%89%e0%b8%9c%e0%b8%a5%e0%b8%b4%e0%b8%95%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%aa%e0%b8%b3%e0%b8%ab%e0%b8%a3%e0%b8%b1%e0%b8%9a%e0%b8%aa%e0%b8%a0%e0%b8%b2%e0%b8%9e\/\">\u0e1c\u0e39\u0e49\u0e1c\u0e25\u0e34\u0e15\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e2a\u0e20\u0e32\u0e1e\u0e41\u0e27\u0e14\u0e25\u0e49\u0e2d\u0e21\u0e01\u0e32\u0e23\u0e17\u0e33\u0e07\u0e32\u0e19\u0e17\u0e35\u0e48\u0e23\u0e38\u0e19\u0e41\u0e23\u0e07<\/a> \u0e04\u0e27\u0e32\u0e21\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16.<\/p>\n<p><a style=\"display: inline-block; padding: 12px 22px; background: #f59e0b; color: #111; text-decoration: none; font-weight: bold; border-radius: 5px;\" href=\"https:\/\/wdlvalve.com\/th\/%e0%b8%95%e0%b8%b4%e0%b8%94%e0%b8%95%e0%b9%88%e0%b8%ad%e0%b9%80%e0%b8%a3%e0%b8%b2\/\">\u0e15\u0e34\u0e14\u0e15\u0e48\u0e2d WDL Valve<\/a><\/p>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Low Emission Valve Selection begins with the fluid, pressure, temperature, operating cycles and required emissions test standard. For hydrogen, natural gas and CCUS service, select the complete valve assembly by checking the body joints, stem or shaft seal, gasket, surface finish, bolting, actuator loads and production test records. Why this topic matters in 2026: hydrogen&#8230;<\/p>","protected":false},"author":1,"featured_media":1195,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"default","_kad_post_title":"default","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[53,52],"tags":[],"class_list":["post-1193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company-news","category-blog"],"_links":{"self":[{"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/posts\/1193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/comments?post=1193"}],"version-history":[{"count":4,"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/posts\/1193\/revisions"}],"predecessor-version":[{"id":1291,"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/posts\/1193\/revisions\/1291"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/media\/1195"}],"wp:attachment":[{"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/media?parent=1193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/categories?post=1193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wdlvalve.com\/th\/wp-json\/wp\/v2\/tags?post=1193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}