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トリプルデューティバルブ
トリプルデューティバルブは1つの1/4回転ボディにポンプ吐出側の3機能—校正済み流量バランス、低スラム逆止弁、確実な締切—を統合し、機械室のスペース、据付工数、3弁マニホールドの余分なフランジ継ぎ目を削減します。テナント帯域は鋳鉄製DN65～DN300、ストレート/アングル形、フランジ・ねじ込み・グルーブ接続。参考仕様は1-1/2～16インチ、定格は代理店掲載の175psi WOGから最も強い資料の375psi / 300℉まで。定格の150%で滴下レベルの締切を試験し、ボディは現地でストレート⇔アングルに組替え可能です。バランス調整は校正済みネームプレートとメモリーストップで行い、閉止後も設定位置に戻ります。ソフトシート+スプリング付きディスクがチャッターを抑制し、カム式着座により一部仕様はメタルシートでも密閉します。本弁は吐出側専用です。チャッター防止のためポンプから十分離し、ステム/ハンドルを下向きにしない、正しい運転には全開から約15%戻して閉じる運用を想定します。同じ装置が複数の商標で流通しており、流量測定精度が重要な場面では専用バランス弁の補完であり代替ではありません。
次のファミリーに属する： チェックバルブ ファミリー
最終更新： 2026-11
ファミリー仕様
| Nominal valve connection size | DN65 to DN300 |
|---|---|
| Valve body material | Cast Iron |
| Valve body material | Cast Iron, Bronze Seat |
| Disc Materials | A536 Nickel Plated Ductile Iron, Bronze B62 |
| Seat material | A536 Nickel Plated Ductile Iron, EPDM O-Ring |
| cover flange materials | Cast Iron |
| Stem material | SS410 |
| Packing Materials | Non-Asbestos |
| spring material | 300 Series Stainless Steel |
| function definition | A triple-duty valve replaces three valves with one body - shut-off, check and calibrated flow balancing - which is what removes the footprint of a three-valve pump-discharge manifold in the mechanical room. |
| closing mechanics | Closing is a two-stage quarter-turn action: the plug rotates to block the downstream port so pressure equalizes around the clapper, then the plug cams against the clapper backside for the final tight fit - the maker recommends turning to normal tight fit then bumping the plug lightly. |
| backflow protection range | Backflow protection holds across a wide range of system-balance settings because the check element is spring-assisted, not dependent on a single operating point. |
| size end envelope oem | The referenced OEM line spans 1-1/2 through 16 inch in flanged or threaded ends (globe style); the tenant band DN65-DN300 sits inside this envelope. |
| drip tight isolation test | Isolation quality is testable, not assumed: the referenced execution is designed and tested for drip-tight shut-off at 150 percent of maximum working pressure. |
| convertible body | Straight- versus angle-pattern is a site decision on convertible executions: the body can be changed in the field, replacing a separate 90-degree elbow on the pump discharge. |
| pressure temp envelope | The referenced execution is rated to 375 psi maximum working pressure and 300 F (150 C), sized 1-1/4 inch NPT through 12 inch flanged. |
| throttle design | Throttling uses a plug-and-disc design rather than a globe-style trim, which keeps the balance function and the shut-off seat on the same closure member. |
| dominant line envelope | Distributor listings for the dominant straight/angle-pattern line show cast iron bodies with flanged, NPT and grooved ends, all rated 175 psi WOG - a materially lower ceiling than the 375 psi reference execution. |
| calibrated balance memory | Balancing is calibrated against a nameplate scale so system flow can be set to a number, and the memory button returns the valve to its set position after shut-off. |
| anti chatter seat | The soft seat design damps valve chatter, protecting the trim from the noise and seat damage that chatter produces. |
| non slam staged parallel | The non-slam check element prevents backflow and gravity circulation in staged and parallel pumping, protecting the idle pump from reverse rotation. |
| cam seating metal seats | The disc approaches the seat with a cam action that produces high seating pressure, so tight shut-off is achievable even with metal seats and discs, not only soft seats. |
| memory stop function | Most triple-duty valves carry a pre-set balance and a memory stop so the balancing position can be restored exactly after shut-off; many models add calibrated markings, test ports and manufacturer performance data for field flow setting. |
| vs dedicated balancing valve | A triple-duty valve balances, but it is not a dedicated balancing valve: where flow-measurement accuracy or specialized balancing control is critical, the designer should verify whether the combined valve is appropriate or a dedicated balancing valve is preferred. |
| installation distance chatter | Placement matters: mounted too close to the pump discharge the check assembly chatters, wearing springs and the flapper prematurely and distorting gauge differential readings. |
| orientation limit | Orientation is restricted: vertical or horizontal mounting is acceptable, but the stem or handle must not point downward or upside down, and the valve cannot be left fully open - it must be closed about 15 percent to operate correctly. |
| naming map | The same device appears under different trade names across pump-accessory lines, so cross-line comparison should start from the shared three-function definition of shut-off plus check plus calibrated balancing. |
| maintainability | Routine maintenance is mainly leak checks at the packing nut and bonnet gasket; stem packing, disc and nameplate are replaceable internals on most executions. |
| bg catalog mwp | The straight-pattern catalog line is rated 175 PSIG (1,207 kPa) maximum working pressure. |
| bg cv table straight | Cv at 100% stem rise on the straight-pattern line spans 83-3,000 m3/h (flowmeter reference) and 77-3,225 m3/h (pressure-drop reference) across 2-14 in sizes. |
| bg cv 4in reference | A 4 in execution of the combined valve carries a pressure-drop Cv of 320 in catalog reference data. |
| bg commissioning dp | Gauge readings across the valve support commissioning: they indicate how to trim the pump impeller or set the maximum speed of the variable-frequency drive. |
| bg pt ports | Integrated pressure-temperature test ports allow direct measurement for flow verification. |
| bg ashrae balancing | Balancing practice reference: hydronic systems are proportionally balanced to minimize throttling losses first, then the pump impeller is trimmed or pump speed adjusted to meet design flow. |
| bg disc soft seat | One catalog execution pairs a brass disc with a soft seat to provide positive shut-off together with the non-slam check function. |
| peer model designation example | Flanged 2-1/2 in straight-pattern units are designated 3DS-2-1/2S under catalog number 132122. |
| peer spring disc check | The check element is an integrated spring-loaded disc; flow-optimized internal geometry limits pressure drop while preventing reverse flow and water hammer. |
| peer tsvn designation | The globe-style quarter-turn combined valve line from one maker carries designation TSVN, offered flanged or threaded in sizes 1-1/2 through 16 in. |
| Maximum working pressure | 8 Bar |
| max operating temperature | 120C |
| disc material | Brass, EPDM Seal Insert |
| Stem material | Stainless Steel |
| packing material | Teflon-Graphite, Asbestos-free |
| gasket material | Asbestos-free |
| readout valve | Brass, NPT insert, Check Valve |
範囲と出所の注記
| pressure envelope | Pressure envelope: the B&G distributor listings cap at 175 psi WOG while the Pentair Aurora 1040 reference reaches 375 psi / 300 F - the type has no single industry pressure ceiling; class follows the specific execution. |
|---|---|
| size envelope | Size envelope: tenant band DN65-DN300 (2.5-12 in) sits inside the Wheatley 1-1/2-16 in globe-style line but above the Pentair 1-1/4 in NPT low end - boundaries are execution-specific. |
| fully open prohibition | Fully-open prohibition: the Liberty guidance that the valve must be closed ~15% from full open to operate correctly is a balancing-function note, not a general check-valve rule - conflicts with how plain check valves are described elsewhere on the site. |
| seat material split | Seat material split: B&G listings emphasize soft (spring-assisted, anti-chatter) seats while the Liberty cam-action note supports metal-seat tight shut-off - both exist, but they are different execution choices, not one industry standard. |
注文と書類
書類
お問い合わせの際に必要な書類セットをお知らせください——この型番仕様の典型的な項目（材質証明書、記載の検査規格に基づく試験報告書、寸法図）は、見積時に確認のうえ供給されます。
お見積り
見積可能なお問い合わせには次の事項をご記入ください：呼び径と圧力レーティング、ボディ・シート材質の希望、接続方式、操作方式、温度を含む使用流体。このページの典型値はベンチマーク参考範囲です。拘束力のある値は見積時に確定します。
サンプルと供給
供給条件、発注数量、納期は注文ごとに協議します——お問い合わせの際に納入国と希望スケジュールをお知らせください。
保管と輸送
バルブはシート・シールを紫外線、オゾン、変形から保護して保管し、据付まで端面保護カバーを取り付けたままにしてください。エラストマーまたは PTFE シートの仕様では、屋外での長期保管を避けてください——シート材料は直射日光と凍結条件で最も劣化が早くなります。
よくある質問
トリプルデューティバルブの見積依頼には何を含めるべきですか？
適用規格とクラス、呼びサイズ、ボディおよびシート材、使用媒体と温度、納入先——欠落している項目は見積の過程で確認します。
トリプルデューティバルブにはどのサイズと圧力等級がありますか？
このバルブの検証済みサイズと圧力等級範囲はまだ本ページに掲載されていません——お客様の使用条件に適したサイズと圧力等級は見積の過程でご提案し、確認します。使用条件を問い合わせに添えていただければ、選定結果を見積書に記載します。
トリプルデューティバルブにはどのボディ材質がありますか？
このバルブの検証済みボディ材質範囲はまだ本ページに掲載されていません——お客様の使用条件に適したボディ材質は見積の過程でご提案し、確認します。使用条件を問い合わせに添えていただければ、選定結果を見積書に記載します。
トリプルデューティバルブ の見積依頼
こちらからご要望をご提出ください——見積に直結するお問い合わせには、適用規格とクラス、口径、材質、流体、温度、納入先をご記入ください.
お客様の情報の取り扱いについては、プライバシー通知をご覧ください。