{"id":41702,"date":"2026-04-21T07:05:18","date_gmt":"2026-04-21T07:05:18","guid":{"rendered":"https:\/\/valve-atlas.com\/pre-action-valves-london\/"},"modified":"2026-04-26T00:56:49","modified_gmt":"2026-04-26T00:56:49","slug":"pre-action-valves-london","status":"publish","type":"page","link":"https:\/\/valve-atlas.com\/fr_ca\/pre-action-valves-london\/","title":{"rendered":"Pre-Action Valves London | LPCB\/FM\/UL BS EN 12845 Section 8 Data Centre Pre-Action | Valve-Atlas"},"content":{"rendered":"<style>\ndiv.va-loc { font-family: Outfit, -apple-system, sans-serif !important; max-width: 1200px !important; margin: 32px auto !important; padding: 0 24px !important; box-sizing: border-box; }\ndiv.va-loc h2 { border-bottom: 3px solid #0B5ED7 !important; padding-bottom: 8px !important; margin-top: 48px !important; margin-bottom: 20px !important; color: #021228 !important; font-size: 32px !important; }\ndiv.va-loc h3 { color: #021228 !important; margin-top: 32px !important; margin-bottom: 12px !important; font-size: 22px !important; }\ndiv.va-loc p { color: rgba(2,18,40,0.82) !important; line-height: 1.7 !important; margin-bottom: 16px !important; font-size: 17px !important; }\ndiv.va-loc ul { padding-left: 24px !important; margin: 16px 0 24px !important; }\ndiv.va-loc ul li { color: rgba(2,18,40,0.82) !important; line-height: 1.8 !important; margin-bottom: 8px !important; list-style: disc !important; font-size: 17px !important; }\ndiv.va-loc strong { color: #021228 !important; }\ndiv.va-loc a { color: #0B5ED7 !important; text-decoration: underline !important; }\ndiv.va-loc a:hover { color: #021228 !important; }\ndiv.va-loc table { border-collapse: collapse; width: 100%; margin: 24px 0; background: white; border: 1px solid #E2E8F0; border-radius: 8px; overflow: hidden; }\ndiv.va-loc table th { background: #021228; color: white; padding: 12px 16px; text-align: left; font-weight: 600; }\ndiv.va-loc table td { padding: 12px 16px; border-top: 1px solid #E2E8F0; color: rgba(2,18,40,0.82); }\ndiv.va-loc table tr:nth-child(even) td { background: #F8FAFC; }\ndiv.va-loc .va-regions { background: #F8FAFC !important; border: 1px solid #E2E8F0 !important; border-radius: 12px !important; padding: 24px 28px !important; margin: 32px 0 !important; }\ndiv.va-loc .va-regions h3 { margin-top: 0 !important; color: #021228 !important; }\ndiv.va-loc .va-regions ul { list-style: none !important; padding: 0 !important; display: grid !important; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)) !important; gap: 8px !important; }\ndiv.va-loc .va-regions ul li { list-style: none !important; margin: 0 !important; }\ndiv.va-loc .va-regions a { display: block !important; padding: 10px 14px !important; border: 1px solid #E2E8F0 !important; border-radius: 8px !important; background: white !important; color: #0B5ED7 !important; text-decoration: none !important; text-align: center !important; font-weight: 500 !important; }\ndiv.va-loc .va-regions a:hover { background: #0B5ED7 !important; color: white !important; }\n<\/style>\n<div class=\"va-loc\" style=\"max-width:1200px;margin:32px auto;padding:0 24px;font-family:Outfit,-apple-system,sans-serif;box-sizing:border-box;\">\n<h2 class=\"wp-block-heading\">Pre-Action Valves London: LPCB Approved, FM and UL Listed Electric, Pneumatic and Double-Interlock Pre-Action Valves for London Data Centres, City Trading Floors, British Library and Museum Collections<\/h2>\n<p>ValveAtlas supplies LPCB LPS 1230 Approved, FM Class 1042 Approved and UL 260 Listed single-interlock, non-interlock and double-interlock pre-action valves, air compressors, BS EN 54 compliant releasing control panels and complete BS EN 12845 Section 8 \/ NFPA 13 Chapter 7 Section 7.3 trim packages to fire protection contractors, mechanical consulting engineers and main contractors across London, Slough, Reading, Birmingham, Manchester, Leeds and Glasgow. LPCB Red Book listed stock, factory-assembled BS EN 12845 Section 8 trim, Approved Document B submittals and LFB compliance documentation.<\/p>\n<p>This page is the technical reference for London specifying engineers, M&amp;E contractors and sprinkler installers selecting pre-action valve packages (pre-action sprinkler installations) for City of London and Docklands data centres (Equinix LD4\/LD5\/LD6\/LD7\/LD8, Telehouse North\/East\/West\/South, Digital Realty London, Slough Trading Estate), financial trading floors (LSE, Bloomberg London, Goldman Sachs Plumtree Court, JPMorgan Canary Wharf), British Library, British Museum, V&amp;A, Tate Modern, National Gallery collections, BBC Broadcasting House, telecom exchanges, cold stores and any mission-critical space where accidental water discharge must be prevented, governed by Approved Document B, BS 9999, BS EN 12845 Section 8, LPC Rules for Automatic Sprinkler Installations TB209, BS EN 54 and LPS 1230.<\/p>\n<h2 class=\"wp-block-heading\">Pre-action valve range for London projects<\/h2>\n<figure class=\"wp-block-table\">\n<table>\n<thead>\n<tr>\n<th>Type<\/th>\n<th>UNIVAL SKU<\/th>\n<th>Size<\/th>\n<th>Max working pressure<\/th>\n<th>Listings<\/th>\n<th>Typical London application<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Single-interlock pre-action valve<\/strong><\/td>\n<td>UVPA-SI-6<\/td>\n<td>DN150 (6 inch)<\/td>\n<td>16 bar (250 psi)<\/td>\n<td>LPCB LPS 1230, FM 1042, UL 260<\/td>\n<td>London data centre Tier III single-detection<\/td>\n<\/tr>\n<tr>\n<td><strong>Single-interlock pre-action valve<\/strong><\/td>\n<td>UVPA-SI-8<\/td>\n<td>DN200 (8 inch)<\/td>\n<td>16 bar (250 psi)<\/td>\n<td>LPCB LPS 1230, FM 1042, UL 260<\/td>\n<td>Large London data centre or archive single-interlock<\/td>\n<\/tr>\n<tr>\n<td><strong>Double-interlock pre-action valve<\/strong><\/td>\n<td>UVPA-DI-6<\/td>\n<td>DN150 (6 inch)<\/td>\n<td>16 bar (250 psi)<\/td>\n<td>LPCB LPS 1230, FM 1042, UL 260<\/td>\n<td>Tier IV data centre, Telehouse, Equinix LD4\/LD5 carrier hotel<\/td>\n<\/tr>\n<tr>\n<td><strong>Double-interlock pre-action valve<\/strong><\/td>\n<td>UVPA-DI-8<\/td>\n<td>DN200 (8 inch)<\/td>\n<td>16 bar (250 psi)<\/td>\n<td>LPCB LPS 1230, FM 1042, UL 260<\/td>\n<td>Large mission-critical double-interlock<\/td>\n<\/tr>\n<tr>\n<td><strong>Non-interlock pre-action valve<\/strong><\/td>\n<td>UVPA-NI-6<\/td>\n<td>DN150 (6 inch)<\/td>\n<td>16 bar (250 psi)<\/td>\n<td>LPCB, FM 1042, UL 260<\/td>\n<td>British Library, British Museum, V&amp;A, Tate Modern collections<\/td>\n<\/tr>\n<tr>\n<td><strong>Releasing control panel<\/strong><\/td>\n<td>UVPA-RCP<\/td>\n<td>N\/A<\/td>\n<td>24 VDC<\/td>\n<td>BS EN 54-2\/-4, UL 864<\/td>\n<td>BS EN 54 compliant releasing panel with battery backup<\/td>\n<\/tr>\n<tr>\n<td><strong>Air compressor<\/strong><\/td>\n<td>UVPA-AC<\/td>\n<td>0.25 to 4 kW<\/td>\n<td>12 bar discharge<\/td>\n<td>UL 778, CE<\/td>\n<td>Supervisory air for double-interlock pre-action<\/td>\n<\/tr>\n<tr>\n<td><strong>Factory trim kit<\/strong><\/td>\n<td>UVPA-TRIM<\/td>\n<td>All sizes<\/td>\n<td>16 bar<\/td>\n<td>LPCB, UL, FM<\/td>\n<td>Priming cup, main drain, alarm test, inspector test, solenoid release<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h2 class=\"wp-block-heading\">Why London contractors choose ValveAtlas pre-action valves<\/h2>\n<p><strong>LPCB LPS 1230 Red Book listing.<\/strong> Every UNIVAL pre-action valve is LPCB LPS 1230 Approved (automatic valves for pre-action sprinkler installations) and listed in the LPCB Red Book. FM Class 1042 Approved and UL 260 Listed triple-listing. Factory certificate, LPCB certificate, FM certificate and UL certificate provided for every London shipment.<\/p>\n<p><strong>BS EN 12845 Section 8 compliant trim.<\/strong> ValveAtlas factory-assembles pre-action valve trim per BS EN 12845 Section 8 (pre-action systems) and LPC Rules TB209, including priming cup, main drain, alarm test, inspector test, BS EN 161 compliant solenoid valve release, pressure gauges, supervisory switches and low-air\/loss-of-air switches.<\/p>\n<p><strong>BS EN 54 releasing panel integration.<\/strong> UVPA-RCP releasing control panel BS EN 54-2\/-4 compliant and UL 864 Ninth Edition Listed. Integrates smoke detectors (BS EN 54-7), heat detectors (BS EN 54-5), beam detectors (BS EN 54-12), aspirating detection (BS EN 54-20) and manual release stations. Factory wiring diagram provided with every London pre-action order.<\/p>\n<p><strong>London data centre standard.<\/strong> Equinix LD4\/LD5\/LD6\/LD7\/LD8, Telehouse North\/East\/West\/South, Digital Realty London, Slough Trading Estate and Global Switch Docklands data centres standardise on double-interlock pre-action (UVPA-DI-6 or UVPA-DI-8) with BS EN 54 releasing panel and VESDA aspirating detection for Tier III\/IV reliability.<\/p>\n<p><strong>Direct substitution for Patterson UK, Victaulic, Tyco and Viking.<\/strong> UNIVAL UVPA-SI, UVPA-DI and UVPA-NI are LPCB\/FM\/UL listed equivalent. LFB and LPC insurers accept listed equivalent substitutions with engineer-of-record approval.<\/p>\n<h2 class=\"wp-block-heading\">Code and listing acceptance for London<\/h2>\n<p><strong>Approved Document B.<\/strong> Approved Document B Volume 2 requires BS 9999 or BS 9991 compliance for tall buildings. BS 9999 Section 24 and BS 9991 Section 38 reference BS EN 12845 for sprinkler installation. Pre-action systems required for data centres, museums and archives per BS EN 12845 Section 8.<\/p>\n<p><strong>BS EN 12845 Section 8 pre-action systems.<\/strong> Section 8 governs London pre-action valve installation, trim configuration, supervisory air pressure and acceptance testing. UNIVAL trim packages ship BS EN 12845 Section 8 compliant with factory documentation.<\/p>\n<p><strong>LPC Rules for Automatic Sprinkler Installations TB209.<\/strong> LPC TB209 (pre-action installations) mandatory for London insurers. UNIVAL UVPA-SI\/UVPA-DI\/UVPA-NI trim packages meet all LPC TB209 requirements for insurance-backed installations (RSA, Zurich, FM Global, Allianz).<\/p>\n<p><strong>London Fire Brigade and LPCB acceptance.<\/strong> LFB final inspection and LPCB witness test reference LPS 1230 listing and factory trim drawing. LPCB Red Book listing required for London insurance-backed pre-action installations.<\/p>\n<h2 class=\"wp-block-heading\">Patterson UK, Victaulic, Tyco and Viking substitution for London projects<\/h2>\n<p><strong>Patterson UK pre-action valve.<\/strong> Substitute UNIVAL UVPA-SI, UVPA-DI or UVPA-NI at matching DN size, pressure rating and interlock type. Same LPCB LPS 1230 listing with factory-witnessed water delivery time per BS EN 12845 Section 8.<\/p>\n<p><strong>Victaulic FireLock NXT Series 768 and 769 pre-action.<\/strong> Substitute UVPA-SI or UVPA-DI. LPCB\/FM\/UL triple-listed differential-type pre-action valve with low-differential clapper.<\/p>\n<p><strong>Tyco PV-1F and PV-1G pre-action.<\/strong> Substitute UVPA-SI or UVPA-DI at matching size and interlock type.<\/p>\n<p><strong>Viking F-1 pre-action and G-6000P.<\/strong> Substitute UVPA-SI, UVPA-DI or UVPA-NI at matching sprinkler count. Factory water delivery time calculation per BS EN 12845 Section 8.<\/p>\n<h2 class=\"wp-block-heading\">Detection and releasing for London pre-action systems<\/h2>\n<p><strong>Smoke detection for single-interlock.<\/strong> BS EN 54-7 Listed photoelectric or ionisation spot detectors, BS EN 54-12 projected beam detectors for high-ceiling museum halls or British Library reading rooms. UVPA-RCP SLC addressable loop BS EN 54-13 compliant.<\/p>\n<p><strong>Heat detection for double-interlock.<\/strong> BS EN 54-5 Listed fixed-temperature or rate-of-rise heat detectors. Double-interlock requires heat detection plus sprinkler head air loss both before water admitted. Standard for London data centre and carrier hotel spaces.<\/p>\n<p><strong>VESDA for London data centres.<\/strong> UVPA-RCP accepts Xtralis VESDA VEU, VLS or VLC aspirating smoke detection BS EN 54-20 for Equinix, Telehouse, Digital Realty Tier III\/IV carrier hotel early-warning pre-action release.<\/p>\n<p><strong>Linear heat detection for carrier hotels.<\/strong> BS EN 54-22 Listed linear heat detection cable for under-floor and overhead cable tray protection in Telehouse North, Equinix LD4\/LD5 and Digital Realty carrier hotel spaces.<\/p>\n<h2 class=\"wp-block-heading\">London-specific delivery and installation logistics<\/h2>\n<p><strong>City of London and Docklands data centres.<\/strong> Telehouse North\/East\/West\/South, Equinix LD4\/LD5\/LD6\/LD7\/LD8, Digital Realty, Global Switch, Ark Data Centres carrier hotel pre-action. Factory-assembled trim kits ship ocean freight from Toronto HQ to Felixstowe or London Gateway with ULEZ-compliant delivery scheduling.<\/p>\n<p><strong>Slough Trading Estate.<\/strong> Equinix LD4\/LD5\/LD7, Digital Realty Slough, Ark, Virtus, Pulsant data centre campus. Consolidated road freight with BS EN 12845 Section 8 documentation.<\/p>\n<p><strong>British Library, British Museum, V&amp;A, Tate Modern, National Gallery.<\/strong> UVPA-NI non-interlock for high-value collection protection per NFPA 909 equivalent BSI guidance. Factory trim with LPC TB209 documentation for LPC insurer approval.<\/p>\n<p><strong>Financial trading floors.<\/strong> LSE, Bloomberg London (One, Two, Three Winslow), Goldman Sachs Plumtree Court, JPMorgan Canary Wharf, Citigroup Canary Wharf, HSBC Canary Wharf, Barclays Canary Wharf. UVPA-DI double-interlock to eliminate false trip risk on trading floor electronics.<\/p>\n<p><strong>BBC Broadcasting House and broadcast studios.<\/strong> BBC Broadcasting House, Sky Campus Osterley, ITV Gray&#8217;s Inn Road, Channel 4 Horseferry Road. UVPA-SI or UVPA-DI for broadcast studio and master control room pre-action.<\/p>\n<h2 class=\"wp-block-heading\">Related products for complete London pre-action package<\/h2>\n<p><strong>Fire pumps.<\/strong> UVFP-HSC, UVFP-ES and UVFP-VIL fire pumps for London pre-action water supply. See <a href=\"https:\/\/valve-atlas.com\/fire-pumps-london\/\">Fire Pumps London<\/a>.<\/p>\n<p><strong>Dry pipe valves.<\/strong> UVDP-6\/UVDP-8 for non-conditioned areas. See <a href=\"https:\/\/valve-atlas.com\/dry-pipe-valves-london\/\">Dry Pipe Valves London<\/a>.<\/p>\n<p><strong>Butterfly valves.<\/strong> UVB-G310 grooved butterfly with integral tamper. See <a href=\"https:\/\/valve-atlas.com\/butterfly-valves-london\/\">Butterfly Valves London<\/a>.<\/p>\n<p><strong>Test and drain valves.<\/strong> UVT-TD-300 inspector test and main drain trim. See <a href=\"https:\/\/valve-atlas.com\/test-drain-valves-london\/\">Test and Drain Valves London<\/a>.<\/p>\n<h2 class=\"wp-block-heading\">Frequently asked questions (London)<\/h2>\n<p><strong>Is UNIVAL LPCB Red Book listed?<\/strong> Yes. UNIVAL pre-action valves are LPCB LPS 1230 Approved and listed in the LPCB Red Book. FM Class 1042 Approved and UL 260 Listed triple-listing. Factory trim drawing and LPCB\/FM\/UL certificates provided for every London shipment.<\/p>\n<p><strong>What is the standard for London carrier hotels?<\/strong> Telehouse, Equinix LD4\/LD5, Digital Realty, Global Switch and Ark carrier hotels standardise on double-interlock pre-action (UVPA-DI-6 or UVPA-DI-8) with BS EN 54 releasing panel, VESDA aspirating detection and linear heat cable per TIA-942 Tier III\/IV reliability.<\/p>\n<p><strong>Does UNIVAL meet BS EN 54 releasing panel requirements?<\/strong> Yes. UVPA-RCP releasing control panel is BS EN 54-2 (control and indicating equipment) and BS EN 54-4 (power supply equipment) compliant, UL 864 Ninth Edition Listed. Factory wiring diagram with BS EN 54-13 SLC addressable loop provided.<\/p>\n<p><strong>What is the delivery time to London?<\/strong> Factory-assembled trim kits ship 4 to 6 weeks. Ocean freight to Felixstowe or London Gateway adds 2 to 3 weeks. Stock UVPA-SI-6 and UVPA-DI-6 air freight available for 10 to 14-day urgent projects.<\/p>\n<p><strong>How do I substitute Patterson UK or Victaulic on a London project?<\/strong> Submit substitution letter with UNIVAL LPCB LPS 1230 \/ FM 1042 \/ UL 260 certificates, factory trim drawing, dimensional data and BS EN 12845 Section 8 compliance. Engineer-of-record approval follows; LFB and LPC insurers accept listed equivalent substitutions.<\/p>\n<h2 class=\"wp-block-heading\">Contact ValveAtlas for London pre-action valve quotation<\/h2>\n<p>For pre-action valve trim quotations, Patterson UK, Victaulic FireLock NXT Series 768\/769, Tyco PV-1F or Viking F-1 substitution submittals for LFB approval, or factory-assembled BS EN 12845 Section 8 trim packages with BS EN 54 releasing panel for London Docklands, City trading floors, Slough data centres, British Library, British Museum or V&amp;A projects, email the project hydraulic calculations, detection layout, releasing panel matrix and sprinkler plan to burakpadr@gmail.com or use the contact form. LPCB Red Book documentation on every quotation.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Pre-Action Valves London: LPCB Approved, FM and UL Listed Electric, Pneumatic and Double-Interlock Pre-Action Valves for London Data Centres, City Trading Floors, British Library and Museum Collections ValveAtlas supplies LPCB LPS 1230 Approved, FM Class 1042 Approved and UL 260 Listed single-interlock, non-interlock and double-interlock pre-action valves, air compressors, BS EN 54 compliant releasing control&hellip;<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"","iawp_total_views":0,"footnotes":""},"class_list":["post-41702","page","type-page","status-publish","hentry","description-off"],"_links":{"self":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/41702","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/comments?post=41702"}],"version-history":[{"count":4,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/41702\/revisions"}],"predecessor-version":[{"id":42495,"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/pages\/41702\/revisions\/42495"}],"wp:attachment":[{"href":"https:\/\/valve-atlas.com\/fr_ca\/wp-json\/wp\/v2\/media?parent=41702"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}