API · ASME · DIN · EN 規格対応の産業用バルブ
ダブルレギュレーティングバルブ
ダブルレギュレーティングバルブは校正済みハンドホイールと確実なストッパを持つスタティックバランス弁で、設定をプリセット・ロックし、閉めても正確に同じ位置へ再開できることが水理試験運転の要件です。範囲は青銅PN25シリーズ（DN15～DN50、低流量のDN15専用型を含む）とダクタイル鋳鉄PN16シリーズ（DN65～DN600）、ギア操作（DN50～DN600）とレバー操作（DN65～DN150）の両形式、端接続はフランジまたはBS EN 10226のテーパ/パラレルねじ。選定は管径と流量、システムに対する青銅/ダクタイル鋳鉄の選択、据付位置でのハンドホイール操作、メモリーストップの設定範囲です。複数資料は運用枠組みを補足します。英国発の「double regulating」という語はメモリーストップで閉止後も正確に復元できる設定位置を意味し、3-way混合・分流弁バイパスの抵抗付与が本来の役割、全開時の圧力損失が最小のY形グローブボディ、最小設定点付近で±15%精度のVODRVのKv-ΔP設定方式、固定Kvsオリフィスまたはベンチュリ測定で通常+5%精度のFODRV試験運転弁、低差圧システム向けのベンチュリ圧力回復、ボディ流向矢印を守る一方向据付、将来負荷を模擬するDRVバイパス、PICVへの置換が進む変流量トレンド。
次のファミリーに属する： バランス弁（平衡弁） ファミリー
最終更新： 2026-11
ファミリー仕様
| Nominal valve connection size | DN50 to DN150 |
|---|---|
| Pressure class / nominal rating designation | Class 150, PN16 |
| End connection types | End Connections Flanged |
| Valve body material | Bronze, Ductile Iron |
| Design standards | DIN EN 13709, DIN 3356 |
| Inspection and pressure-test standards | EN 12266-1 |
| bronze line | D921 DN15 to DN50 Double Regulating Valve (DRV) – Bronze PN25 |
| bronze low flow variant | D923 DN15 Low Flow Double Regulating Valve (DRV) |
| ductile line | DM921 DN65 to DN300 Double Regulating Valve (DRV) – Ductile Iron PN16 |
| Gearbox variant | DM925G / DM925L DN50 to DN600 1/4 Turn Gearbox Operated Double Regulating Valve (DRV) – Ductile Iron PN16 |
| Lever variant | DM925LW DN65 to DN150 Lever Operated Double Regulating Valve (DRV) – Ductile Iron PN16 |
| threaded connections | Sizes 1" to 2" taper threaded to BS EN 10226-2 (ISO 7-1) formerly BS 21 |
| memory stop principle | a valve capable of being set to a desired degree of opening, locking that position with a memory stop to ensure the position can be retrieved exactly after the valve has been closed. |
| bypass duty 3port | In the UK the Double Regulating Valve [DRV] is primarily used to create flow resistance or a pressure drop in the by-pass of a 3-Port mixing or diverter valve or for simulating a load for a future loop. |
| no flow measurement | Keep in mind that this balancing valve doesn’t provide any flow measurement. |
| butterfly memory stop ref | For line sizes from DN 65, Butterfly valves that have been fitted with a memory stop can offer the same functionality as the traditional globe design while being lighter, smaller, easier to install and less costly. |
| vodrv definition | The DRV is sometimes referred to as “ Variable Orifice Double Regulating Valve ” [VODRV]. |
| vodrv kv method | The flow rate is calculated using the Kv value for each handwheel setting and the Δ P across the valve. |
| vodrv accuracy ref | The measurement accuracy may be adversely affected by this principle by plus or minus 15%, when close to the minimum set point (25% open as per CIBSE guideline). |
| vodrv unidirectional | The valve is unidirectional and the direction of the flow arrow on the valve body must be respected. |
| fodrv definition | The Fixed Orifice Double Regulating Valve [FODRV] is also referred to as Commissioning Valve or Commissioning Valve Set. |
| fodrv accuracy ref | The accuracy of this type of valve is typically + 5%, depending on the opening position. |
| venturi pressure recovery | The FODRV with venturi minimises turbulence and recovers a significant proportion of the pressure loss after flow has passed through it, and can be close coupled, which makes the venturi FODRV suitable for systems with low differential pressure. |
| picv variable flow trend | Commissioning Valves are not suitable for variable flow and have been replaced by PICVs. |
| bypass future load | Install a DRV bypass between flow and return to simulate future system load. |
| y pattern globe body | Typically this valve is a Y pattern globe valve arranged in this way to present the smallest pressure loss to the system when fully open. |
| double regulating meaning | The description DOUBLE regulating means that it has a feature whereby you can set the position that the valve is to operate at in such a way that you can still close the valve for maintenance purposes. |
| resistance reduces flow | Adjustment of this valve will add resistance to the system and hence reduce the flow. |
| peer fodrv line | Peer FODRV execution: fixed-orifice commissioning valve in corrosion-resistant brass with brass test points, screwed female BSP, PN25, -10°C to 120°C |
| peer vodrv line | Peer VODRV execution: variable-orifice double regulating valve in ductile iron, flanged PN16, -10°C to 120°C, supplied with 2 test points |
| Source 1 — venturi valve construction | Balancing valve for hydraulic systems. Flow meter with Venturi device. Stainless steel obturator. Complete with quick-fit pressure test ports. |
| Source 1 — Valve body material | Material : dezincification resistant brass DR |
| Source 1 — Service temperature range | Medium temperature range : -20–120 °C |
| Source 1 — Maximum working pressure | Maximum working pressure : 16 bar |
| Source 1 — glycol limit | Maximum percentage of glycol : 50 % |
| Source 2 — memory stop principle | Memory stop/Sealing locking The valves are equipped with an adjustment position memory system that, after full closure which can be necessary for various reasons, allows easy re-opening at the initial position. |
| Source 2 — setting seal locking | There are two holes on the knob that can be used to seal (5) the setting position to avoid or detect any tampering over time. |
| Source 2 — presetting method | Knowing the value of the pressure drop p that needs to be created by the valve with a certain flow rate G, you can obtain the adjustment position number for the knob (PRESETTING). |
| Source 2 — adjustment scale | clockwise turn of the knob moves the red indicator by one step, from position 0 (valve closed) to position 6 (fully open valve). In addition, the decimal graduations of the black micrometric scale enable further refining of the adjustment. |
| Source 2 — installation clearance | The balancing valves must be installed in such a way as to ensure free access to the pressure test ports, drain cocks and the adjustment knob. The valves can be fitted on either horizontal or vertical pipes. |
| Source 3 — fodrv definition | is a fixed orifice double regulating valve (FODRV) which uses a venturi to measure the flow of liquid passing through the valve. |
| Source 3 — venturi definition | A venturi is a fixed orifice device consisting of two different diameters with a tapered section between them. The smaller diameter is referred to as the throat. |
| Source 3 — venturi upstream | The venturi is located upstream of the double regulating valve which provides stable flow measurement during flow regulation. |
| Source 3 — Valve body material | Component Material Grade Body DZR alloy BS EN 12165 CW602N Cover DZR alloy BS EN 12165 CW511L Stem DZR alloy BS EN 12164 CW724R Regulating disc Stainless steel AISI 303 Seal seat DZR alloy BS EN 12165 CW602N Disc seal PTFE Seals EPDM rubber |
| Source 3 — memory stop restriction | The valves are equipped with an adjustable memory stop that, after full closure allows easy re-opening to the set position. |
| Source 3 — position indicator | The valve position is indicated by 2 digits on the upper side of the handwheel, one digit indicates the number of full turns from closed (6) and the second indicating the partial turn (10). |
| Source 3 — technical data | Number of adjustment turns: 6 Female connecting threads: BS EN 288-1 |
| Source 3 — stem seal design | The double `O' ring stem seal (3) prevents water coming into contact with the actuating thread of the stem and causing leakage. |
| Source 4 — threaded size range | Threaded version sizes DN 15 (1/2"), DN 20 (3/4"), DN 25 (1"), DN 32 (1 1/4"), DN 40 (1 1/2"), DN 50 (2") |
| Source 4 — flanged size range | Flanged version sizes DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300 |
| Source 4 — flange standard | DN 65, 80, 100, 125, 150, 200, 250, 300; PN 16 - EN 1092-2 |
| Source 5 — venturi valve role | Venturi valves provide balance, ease of commissioning, and shut-off in a wide range of HVAC systems. |
| Disc Materials | Ductile Iron, SS304, SS316, Bronze |
| shaft materials | SS410, SS431 |
| seat ring materials | EPDM, NBR |
| o ring materials | EPDM, NBR |
| bushing materials | PTFE, Bronze |
| flanged end standard | EN 1092-1 PN25 |
| Face-to-face dimensional standard | EN 558-1 |
範囲と出所の注記
| measurement accuracy | Measurement accuracy: reference VODRV principle can drift plus or minus 15% near the minimum set point (25% open per CIBSE), while the tenant page presents a calibrated handwheel with no stated measurement accuracy - accuracy class is unstated on the tenant page. |
|---|---|
| line size alternative | Line-size alternative: reference practice offers butterfly valves with memory stops as functionally equivalent from DN 65 upward (lighter, smaller, cheaper), while the tenant globe-design DRV lines run DN65 to DN600 - the globe-versus-butterfly split is not represented on the tenant page. |
| system trend positioning | System-trend positioning: reference guidance states commissioning valves are not suitable for variable flow and have been replaced by PICVs, while the tenant page positions static balancing DRVs without the variable-flow caveat. |
| peer pressure material mix | Peer pressure/material mix: peer executions offer PN20 brass screwed FODRV lines and PN16 flanged ductile-iron VODRV lines, versus the tenant PN25 bronze and PN16 ductile-iron lines - peer brass PN20 sits between the tenant bronze PN25 and ductile PN16 bands. |
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
ダブルレギュレーティング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。
ダブルレギュレーティング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。
ダブルレギュレーティング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。
ダブルレギュレーティングバルブ 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.
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