{
 "title": "減圧弁のメーカー比較",
 "source": "https://makerzukan.jp/c/kikaiyoso/pressure-reducing-valve/",
 "publisher": "メーカー図鑑",
 "license": "出典（メーカー図鑑・URL）を明記すれば引用可",
 "updated": "2026-10-28",
 "definition": "減圧弁は、流体の圧力を下げ、二次側の圧力を設定した値に保つ自動弁です。",
 "findings": [
  "値段を出しているのは8社中1社（10製品中2製品）だけ。ほかは寸法を伝えて見積もりを取ります。",
  "方式ごとの製品数は、直動式 6・パイロット式 4です。",
  "一次側圧力を仕様に記載しているのは10製品です。",
  "二次側調整圧力を仕様に記載しているのは10製品です。",
  "本体材質を仕様に記載しているのは10製品です。"
 ],
 "types": [
  {
   "key": "prv-direct",
   "name": "直動式",
   "how": "ベローズやダイヤフラムが受ける二次圧力と、調整ばねの力を釣り合わせて主弁を直接動かします。小型にでき、流量変化の少ない装置に使います。",
   "scenes": [
    "流量が安定した小型装置",
    "装置の近くに組み込む",
    "水・純水の圧力調整"
   ]
  },
  {
   "key": "prv-pilot",
   "name": "パイロット式",
   "how": "二次圧力をパイロット弁で受け、ピストンやダイヤフラムを介して主弁を動かします。主管や大流量の蒸気ラインなどで使います。",
   "scenes": [
    "工場の蒸気主管",
    "大流量の蒸気ライン",
    "地域冷暖房の蒸気受入設備"
   ]
  }
 ],
 "columns": [
  "図鑑番号",
  "製品名",
  "メーカー",
  "方式",
  "向いている所",
  "適用流体",
  "呼び径・接続口径",
  "一次側圧力",
  "二次側調整圧力",
  "本体材質",
  "接続",
  "使用温度",
  "価格",
  "最大減圧比",
  "最小差圧",
  "特長",
  "公式ページ",
  "カタログ",
  "出典",
  "確認日"
 ],
 "rows": [
  [
   "MZ-29600",
   "クリーンレギュレータ SRH3000-02",
   "SMC株式会社",
   "直動式",
   "純水・クリーンエアの圧力調整",
   "純水、クリーンエア",
   "Rc1/4",
   "最高1MPa",
   "0.02〜0.2MPa",
   "SUS316L（本体）",
   "Rc1/4ねじ",
   "0〜60℃（凍結不可）",
   "記載なし",
   "記載なし",
   "記載なし",
   "Aグレード、PTFEダイヤフラム",
   "https://www.smcworld.com/products/subject/ja-jp/phys/general/water/water_regulator.html",
   "https://ca01.smcworld.com/catalog/Clean/mpv/cat02-23-fr-srh/data/cat02-23-fr-srh.pdf",
   "https://www.smcworld.com/products/subject/ja-jp/phys/general/water/water_regulator.html",
   "2026-10-28"
  ],
  [
   "MZ-29601",
   "水用直動式減圧弁 KRW",
   "兼工業株式会社",
   "直動式",
   "ビル・工場設備の水配管",
   "水",
   "65mm",
   "0MPa超〜1.6MPa",
   "100〜200kPa",
   "青銅",
   "ウエハー式",
   "0〜80℃",
   "記載なし",
   "記載なし",
   "記載なし",
   "水平・垂直配管に取付",
   "https://kanevalve.co.jp/product/reducingvalve.html",
   "記載なし",
   "https://kanevalve.co.jp/product/reducingvalve.html",
   "2026-10-28"
  ],
  [
   "MZ-29606",
   "蒸気・空気用減圧弁 DP27",
   "スパイラックス・サーコ合同会社",
   "パイロット式",
   "蒸気・圧搾空気の圧力調整",
   "蒸気、圧搾空気",
   "25A",
   "最高1.7MPaG",
   "0.02〜1.7MPaG",
   "ダクタイル鋳鉄",
   "NPTねじ込み",
   "232℃以下（圧力・温度線図内）",
   "記載なし",
   "記載なし",
   "記載なし",
   "円錐形の圧力調整スプリング",
   "https://www.spiraxsarco.com/global/ja-JP/products/control-systems/pressure-reducing-and-surplussing-valves",
   "https://content.spiraxsarco.com/-/media/spiraxsarco/international/documents/ja/ti/dp27_dp27e_dp27g_dp27gy_dp27r_dp27y-ti-p470-01-ja.ashx?rev=5d2ad5b104234f1abd8e73df9263a213",
   "https://www.spiraxsarco.com/global/ja-JP/products/control-systems/pressure-reducing-and-surplussing-valves",
   "2026-10-28"
  ],
  [
   "MZ-29602",
   "空気用直動式減圧弁 A-DR20-2",
   "株式会社テイエルブイ",
   "直動式",
   "空気の小型プロセス",
   "空気",
   "25A",
   "0.2〜1.0MPaG",
   "0.014〜0.2MPaG",
   "ASTM A351 Gr.CF8",
   "Rcねじ込み",
   "100℃以下",
   "記載なし",
   "30対1",
   "記載なし",
   "フッ素ゴム製ソフトシート",
   "https://www.tlv.com/ja-jp/products/010000/p010900/",
   "https://www2.tlv.com/sites/default/files/tlv_assets/product_v2/catalog/pdf/dr20.pdf",
   "https://www.tlv.com/ja-jp/products/010000/p010900/",
   "2026-10-28"
  ],
  [
   "MZ-29603",
   "蒸気・空気用直動式減圧弁 DR20-6",
   "株式会社テイエルブイ",
   "直動式",
   "蒸気・空気の小型装置",
   "蒸気、空気",
   "25A",
   "0.2〜1.6MPaG",
   "0.18〜0.6MPaG",
   "ASTM A351 Gr.CF8",
   "Rcねじ込み",
   "220℃以下",
   "記載なし",
   "30対1",
   "記載なし",
   "本体・要部ステンレス製",
   "https://www.tlv.com/ja-jp/products/010000/p010900/",
   "https://www2.tlv.com/sites/default/files/tlv_assets/product_v2/catalog/pdf/dr20.pdf",
   "https://www.tlv.com/ja-jp/products/010000/p010900/",
   "2026-10-28"
  ],
  [
   "MZ-29607",
   "蒸気用減圧弁 P260-DHC",
   "フシマン株式会社",
   "パイロット式",
   "地域冷暖房・二段減圧の二段目",
   "蒸気",
   "40A",
   "1.0MPa以下",
   "0.03〜0.9MPa",
   "FCD450",
   "JIS 10K FFフランジ",
   "220℃以下",
   "記載なし",
   "20対1を超える場合は二段減圧",
   "記載なし",
   "二段減圧の二段目にも使用",
   "https://fushiman.co.jp/products/genatu-jouki",
   "https://fushiman.co.jp/data/202407/M_P260-DHC_FCD-FC_10K_015-150.pdf",
   "https://fushiman.co.jp/products/genatu-jouki",
   "2026-10-28"
  ],
  [
   "MZ-29604",
   "水・温水用減圧弁 RD31N-FL",
   "株式会社ベン",
   "直動式",
   "赤水対策をする給水・給湯配管",
   "水、温水",
   "25A",
   "1.0MPa以下",
   "0.05〜0.35MPa（L区分）",
   "CAC406",
   "JIS Rcねじ",
   "5〜90℃",
   "108,000円（メーカー価格表、税区分記載なし）",
   "10対1",
   "0.05MPa",
   "40メッシュ相当ストレーナ内蔵",
   "https://www.venn.co.jp/products/reducing_w/rd-31n",
   "https://www.venn.co.jp/content/download/21201/372447/file/1_rd-31n_1_RD-31Nカタログ.pdf",
   "https://www.venn.co.jp/products/reducing_w/rd-31n",
   "2026-10-28"
  ],
  [
   "MZ-29608",
   "蒸気用減圧弁 RP6-B",
   "株式会社ベン",
   "パイロット式",
   "工場の蒸気主管・大流量ライン",
   "蒸気",
   "25A",
   "1.0MPa以下",
   "0.03〜0.8MPa",
   "FC",
   "JIS 10K FFフランジ",
   "184℃以下",
   "110,000円（メーカー価格表、税区分記載なし）",
   "20対1",
   "0.05MPa",
   "圧力調整ハンドルに自動ロック",
   "https://www.venn.co.jp/products/reducing_s/rp-6",
   "https://www.venn.co.jp/content/download/21280/372921/file/1_rp-6_1_RP-6カタログ.pdf",
   "https://www.venn.co.jp/products/reducing_s/rp-6",
   "2026-10-28"
  ],
  [
   "MZ-29605",
   "蒸気用直動式減圧弁 RE1",
   "株式会社ミヤワキ",
   "直動式",
   "クリーニング・食品用の小型蒸気装置",
   "蒸気",
   "15A",
   "0.2〜1.6MPa",
   "0.05〜1.0MPa",
   "C3771（黄銅）",
   "Rcねじ込み",
   "204℃以下",
   "記載なし",
   "10対1",
   "一次側圧力の20%",
   "20メッシュ相当スクリーン内蔵",
   "https://www.miyawaki-inc.com/pressure_reducing/direct/re1",
   "記載なし",
   "https://www.miyawaki-inc.com/pressure_reducing/direct/re1",
   "2026-10-28"
  ],
  [
   "MZ-29609",
   "蒸気用減圧弁 GP-2000",
   "株式会社ヨシタケ",
   "パイロット式",
   "大流量の蒸気配管",
   "蒸気",
   "25A",
   "0.1〜2.0MPa",
   "0.1〜1.4MPa（B区分）",
   "FCD450",
   "JIS 20K RFフランジ",
   "220℃以下",
   "記載なし",
   "20対1",
   "0.05MPa",
   "弁座漏れ量は定格流量の0.01%以下",
   "https://www.yoshitake.co.jp/prod/product?no=16",
   "記載なし",
   "https://www.yoshitake.co.jp/prod/product?no=16",
   "2026-10-28"
  ]
 ],
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