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  1. VENN Pressure Reducing Valve [10-30Kpa, Flange, For Low Pressure Gas]
    VENN Pressure Reducing Valve [10-30Kpa, Flange, For Low Pressure Gas]
    Mulai

    Rp51.999.900

    0 Ulasan
  2. VENN New Standard Compliant Female Union Fitting Set [Built-In P/V Core]
    VENN New Standard Compliant Female Union Fitting Set [Built-In P/V Core]
    Mulai

    Rp1.399.900

    0 Ulasan
  3. VENN General-Purpose Electromagnetic Emergency Shutoff Valve [For Fuel Oil/Fuel Gas]
    VENN General-Purpose Electromagnetic Emergency Shutoff Valve [For Fuel Oil/Fuel Gas]
    Mulai

    Rp30.999.900

    0 Ulasan
  4. VENN Fukutaro FC/SCS Safety Relief Valve [0.2-0.5Mpa/No Lever]
    VENN Fukutaro FC/SCS Safety Relief Valve [0.2-0.5Mpa/No Lever]
    Mulai

    Rp8.299.900

    0 Ulasan
  5. VENN Fukutaro Bronze/SCS Safety Relief Valve [0.05-0.1/Lever/Soft Seat]
    VENN Fukutaro Bronze/SCS Safety Relief Valve [0.05-0.1/Lever/Soft Seat]
    Mulai

    Rp4.999.900

    0 Ulasan
  6. VENN FCD Internal Epoxy Pressure Reducing Valve [0.05-0.3Mpa, 16KRF, Fire Certified Product]
    VENN FCD Internal Epoxy Pressure Reducing Valve [0.05-0.3Mpa, 16KRF, Fire Certified Product]
    Mulai

    Rp86.999.900

    0 Ulasan
  7. VENN FC Internal Epoxy Pressure Reducing Valve [0.3-1.0Mpa, J16KRF, Fire Certified Product]
    VENN FC Internal Epoxy Pressure Reducing Valve [0.3-1.0Mpa, J16KRF, Fire Certified Product]
    Mulai

    Rp93.999.900

    0 Ulasan
  8. VENN FC Inner Surface Epoxy Resin Painted Water Fall Prevention Valve [0.3-0.7Mpa/Flange]
    VENN FC Inner Surface Epoxy Resin Painted Water Fall Prevention Valve [0.3-0.7Mpa/Flange]
    Mulai

    Rp119.999.900

    0 Ulasan
  9. VENN Compliant with New Standards Emergency Shutoff Valve For Bronze Water Tank Solenoid, Manual, Outlet
    VENN Compliant with New Standards Emergency Shutoff Valve For Bronze Water Tank Solenoid, Manual, Outlet
    Mulai

    Rp109.999.900

    0 Ulasan
  10. VENN Calm SCS Pressure Reducing Valve [Flange/1.6Mpa]
    VENN Calm SCS Pressure Reducing Valve [Flange/1.6Mpa]
    Mulai

    Rp70.999.900

    0 Ulasan
  11. VENN Calm Chlorine Water Resistant CAC Pressure Reducing Valve [Screw Included, Water, Hot Water, 0.3-0.7Mpa]
    VENN Calm Chlorine Water Resistant CAC Pressure Reducing Valve [Screw Included, Water, Hot Water, 0.3-0.7Mpa]
    Mulai

    Rp12.999.900

    0 Ulasan
  12. VENN Bronze Small Cylinder Valve [Flange, On/Off Control, Valve Open When Pressurized, For High Temperature]
    VENN Bronze Small Cylinder Valve [Flange, On/Off Control, Valve Open When Pressurized, For High Temperature]
    Mulai

    Rp16.999.900

    0 Ulasan
  13. Meridian Out Wall Stop Valve
    Meridian Out Wall Stop Valve
    Mulai

    Rp599.900

    0 Ulasan
  14. Yoshitake Water Pressure Reducing Valve (Cold Area Specification)
    Yoshitake Water Pressure Reducing Valve (Cold Area Specification)
    Mulai

    Rp1.699.900

    0 Ulasan
  15. Yoshitake Thermo Radiator Valve (Straight Type)
    Yoshitake Thermo Radiator Valve (Straight Type)
    Mulai

    Rp829.900

    0 Ulasan
  16. Yoshitake Temperature Control Valve OB-30 ・ 31 ・ 30U ・ 31U Sensor Part
    Yoshitake Temperature Control Valve OB-30 ・ 31 ・ 30U ・ 31U Sensor Part
    Mulai

    Rp7.699.900

    0 Ulasan
  17. Yoshitake Pressure Reducing Valve (for Steam) GP-6N Series
    Yoshitake Pressure Reducing Valve (for Steam) GP-6N Series
    Mulai

    Rp5.999.900

    0 Ulasan
  18. Yoshitake Pressure Reducing Valve (for Steam) GP-1002 Series
    Yoshitake Pressure Reducing Valve (for Steam) GP-1002 Series
    Mulai

    Rp7.799.900

    0 Ulasan
  19. Yoshitake Pressure Reducing Valve (for Cold/Hot Water) GD-6 Series
    Yoshitake Pressure Reducing Valve (for Cold/Hot Water) GD-6 Series
    Mulai

    Rp6.099.900

    0 Ulasan
  20. Yoshitake Pressure Reducing Valve (for Cold/Hot Water) GD-28-NE Series
    Yoshitake Pressure Reducing Valve (for Cold/Hot Water) GD-28-NE Series
    Mulai

    Rp7.499.900

    0 Ulasan
  21. Yoshitake Air Bleed Valve (with Check Function) TA-16CVA
    Yoshitake Air Bleed Valve (with Check Function) TA-16CVA
    Mulai

    Rp2.899.900

    0 Ulasan
  22. Nihon Itomic Uniaxial Pressure Reducing Valve Fig
    Nihon Itomic Uniaxial Pressure Reducing Valve Fig
    Mulai

    Rp1.699.900

    0 Ulasan
  23. ZURN WILKINS Water Pressure Reducing Valves
    ZURN WILKINS Water Pressure Reducing Valves
    Mulai

    Rp4.999.900

    0 Ulasan
  24. Apollo Water Pressure Reducing Valve
    Apollo Water Pressure Reducing Valve
    Mulai

    Rp2.899.900

    0 Ulasan
  25. ACCELERATOR Refrigeration Access Valves
    ACCELERATOR Refrigeration Access Valves
    Mulai

    Rp14.999.900

    0 Ulasan
  26. VENN Pressure Reducing Valve RP-6P Type (For Steam) (Main Part CAC)
    VENN Pressure Reducing Valve RP-6P Type (For Steam) (Main Part CAC)
    Mulai

    Rp9.499.900

    0 Ulasan
  27. VENN Pressure Reducing Valve RD-20N Type (For Water / Liquid, Air / Gas)
    VENN Pressure Reducing Valve RD-20N Type (For Water / Liquid, Air / Gas)
    Mulai

    Rp16.999.900

    0 Ulasan
  28. VENN HB1S-F Radiator Valve [For Steam / Straight Type]
    VENN HB1S-F Radiator Valve [For Steam / Straight Type]
    Mulai

    Rp1.799.900

    0 Ulasan
  29. VENN AFV4N-F Water Supply Law Compliant Bronze Intake / Exhaust Valve
    VENN AFV4N-F Water Supply Law Compliant Bronze Intake / Exhaust Valve
    Mulai

    Rp3.599.900

    0 Ulasan
  30. LIQUIDYNAMICS INC. Vent Valves
    LIQUIDYNAMICS INC. Vent Valves
    Mulai

    Rp7.199.900

    0 Ulasan
  31. Hayward Vent Valves
    Hayward Vent Valves
    Mulai

    Rp9.399.900

    0 Ulasan
  32. ZURN Mixing Valves
    ZURN Mixing Valves
    Mulai

    Rp5.399.900

    0 Ulasan
  33. ACORN Mixing Valves
    ACORN Mixing Valves
    Mulai

    Rp2.899.900

    0 Ulasan
  34. BELL GOSSETT Air Vent
    BELL GOSSETT Air Vent
    Mulai

    Rp1.499.900

    0 Ulasan
  35. FESTO Air operated valve angle seat
    FESTO Air operated valve angle seat
    Mulai

    Rp19.999.900

    0 Ulasan
  36. FM Valve valve + constant water level valve + angle type 3L type + main valve + sub valve (FM-20) + set product
    FM Valve valve + constant water level valve + angle type 3L type + main valve + sub valve (FM-20) + set product
    Mulai

    Rp19.999.900

    0 Ulasan
  37. FM Valve valve + constant water level valve + angle type 1 type + main valve only
    FM Valve valve + constant water level valve + angle type 1 type + main valve only
    Mulai

    Rp13.999.900

    0 Ulasan
  38. Altecnic Pressure Relief Valve
    Altecnic Pressure Relief Valve
    Mulai

    Rp4.299.900

    0 Ulasan
  39. RANCO Ball Valves
    RANCO Ball Valves
    Mulai

    Rp759.900

    0 Ulasan
  40. Apollo Refrigerant Ball Valve
    Apollo Refrigerant Ball Valve
    Mulai

    Rp1.399.900

    0 Ulasan
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Filter Merk
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  20. CASH VALVE 2 item
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  25. Double Lin 1 item
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  34. Frap 1 item
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  43. Hitachi Industrial Equipment Systems 2 item
  44. Home Care 1 item
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  48. JONES STEPHENS 1 item
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  50. KENT Valve 1 item
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  53. KZ 3 item
  54. LEONARD VALVE 3 item
  55. LIQUIDYNAMICS INC. 1 item
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  58. Meridian 4 item
  59. MUELLER 1 item
  60. NDL 1 item
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  63. Non Brand 4 item
  64. OASIS 1 item
  65. OATEY 2 item
  66. Ojiden 1 item
  67. OKM 1 item
  68. Onda 1 item
  69. Osaka Pipe Fitting & Valve 34 item
  70. Osaka Sanitary 15 item
  71. Paloma 6 item
  72. Parker 1 item
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  74. Power Valve 1 item
  75. POWERS 2 item
  76. PROLINE 1 item
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  78. RIIFO 1 item
  79. ROBERTSHAW 2 item
  80. RS PRO 1 item
  81. Rubbermaid 1 item
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  84. Samiplast 2 item
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  90. SOLVEX 1 item
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  92. STNC 1 item
  93. TACO 2 item
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  95. Three-M Industry 4 item
  96. Tozen 1 item
  97. TRUSCO 2 item
  98. Val-Matic 2 item
  99. VELVAC 2 item
  100. VENN 270 item
  101. VTV Valve 1 item
  102. Wasser 1 item
  103. Waterplus 7 item
  104. WATTS 21 item
  105. WATTS REGULATOR 3 item
  106. WEATHERHEAD 1 item
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Halaman Terkait

  1. foot valve 6 inch
  2. automatic air vent
  3. foot valve 4 inch
  4. foot valve 3 inch
  5. air vent valve
  6. selang air panas
  7. safety valve relief
  8. foot valve
  9. water pressure
  10. foot valve mizu
  11. yoshitake valve
  12. pressure reducing valve yoshitake
  13. air valve
  14. water pressure reducing valve
  15. Water Valve
  16. kran air air
  17. gate valve harga
  18. Gas Solenoid Valve
  19. Bucket Strainer WCB

Pertanyaan Tentang Check Valve Industrial


Apa perbedaan antara swing check valve (ayun) dan lift check valve (angkat)?

Swing check menggunakan disc (piringan) berengsel, ideal untuk fluida cair dan menawarkan pressure drop (penurunan tekanan) rendah. Lift check (tipe piston/bola) ideal untuk gas atau uap (steam) berkecepatan tinggi karena desainnya lebih tahan getaran.

Bagaimana cara menentukan material bodi (Cast Iron, SS316, Bronze) untuk check valve industri?

Pemilihan material bergantung pada korosivitas fluida. Cast Iron (besi cor) untuk utilitas umum (air). Bronze (perunggu) untuk air laut. Stainless Steel (SS316) wajib untuk fluida proses kimia agresif atau aplikasi higienis (F&B).


Produk Pressure Reducing Valve Berkualitas


1. Direct-Acting (Aksi Langsung) / Spring-Loaded

Ini adalah mekanisme paling sederhana. PRV ini beroperasi murni pada keseimbangan gaya.


  • Mekanisme: Sebuah pegas (spring) diatur (melalui adjustment screw) untuk memberikan gaya ke bawah pada diafragma atau piston. Gaya ini membuka valve plug (penutup katup). Tekanan downstream (P2) disalurkan ke bawah diafragma, membuat gaya ke atas.
  • Operasi: Jika P2 turun (permintaan downstream naik), gaya pegas lebih besar, membuka katup lebih lebar. Jika P2 naik (permintaan turun), tekanan P2 mendorong diafragma ke atas, menutup katup.
  • Karakteristik: Respon cepat, desain sederhana, robust (kokoh). Namun, akurasi terbatas dan rentan terhadap droop (penurunan).


2. Pilot-Operated (Digerakkan Pilot)

Ini adalah sistem dua tahap yang lebih kompleks, dirancang untuk akurasi tinggi dan kapasitas aliran besar.


  • Mekanisme: Unit ini menggunakan pilot, yaitu PRV direct-acting kecil, untuk mengontrol katup utama. Pilot mengalirkan fluida bertekanan upstream (P1) ke atas piston atau diafragma katup utama untuk mengaturnya.
  • Operasi: Katup pilot merasakan tekanan downstream (P2) secara presisi. Jika P2 turun, pilot membuka, mengalirkan lebih banyak tekanan P1 ke aktuator katup utama, membukanya lebih lebar.
  • Karakteristik: Akurasi setpoint sangat tinggi (±1%), kapasitas aliran (Cv) besar, dan rangeability (rentang kontrol) sangat baik. Ideal untuk jalur distribusi utama (seperti steam header atau suplai air pabrik).


Tips Memilih Pressure Reducing Valve


  • Analisis Aliran: Koefisien Aliran (Cv) PRV tidak dipilih berdasarkan ukuran pipa. PRV dipilih berdasarkan Cv (Kapasitas Aliran) yang diperlukan. Kalkulasi Cv harus mempertimbangkan:
    • Laju Aliran (Q) - Minimum, Normal, dan Maksimum.
    • Tekanan Inlet (P1) - Minimum dan Maksimum.
    • Tekanan Outlet (P2) - Setpoint yang diinginkan.
    • Media (Fluida) - Densitas atau specific gravity.
    • Oversizing (Cv terlalu besar) akan menyebabkan katup beroperasi pada bukaan sangat kecil, menimbulkan chatter (getaran), erosi, dan kegagalan prematur.

  • Media, Suhu, dan Kompatibilitas Material Material bodi (misal, stainless steel 316 untuk kimia yang bersifat korosif) dan material trim (internal) harus sesuai.
    • Elastomer (Seal, Diafragma): NBR (Buna-N) ideal untuk oli/hidrolik. EPDM ideal untuk air atau steam suhu rendah. FKM (Viton) untuk kimia dan suhu tinggi.
    • Steam Service (Servis Uap): Wajib menggunakan material trim stainless steel hardened (dikeraskan) dan diafragma logam atau graphite packing untuk menahan suhu tinggi dan erosi.

  • Akurasi dan Karakteristik Kinerja Penting untuk mendefinisikan seberapa ketat tekanan downstream harus dijaga.
    • Droop (Penurunan): Fenomena di mana tekanan downstream turun seiring peningkatan laju aliran. PRV direct-acting memiliki droop signifikan. PRV pilot-operated memiliki droop sangat minimal.
    • Lock-Up (Tekanan Statis): Saat aliran downstream berhenti (kondisi zero flow), PRV harus menutup rapat. Lock-up adalah perbedaan antara setpoint saat mengalir dan tekanan downstream saat aliran nol.



Tips Instalasi Pressure Reducing Valve


1. Proteksi Upstream

PRV adalah perangkat presisi. Y-Strainer (Saringan Y) dengan mesh (saringan) halus wajib dipasang tepat di upstream PRV untuk melindunginya dari serpihan pipa, karat, atau weld slag.


2. Bypass dan Isolasi

Instalasi profesional selalu mencakup tiga katup isolasi (gate atau ball valve): satu di upstream PRV, satu di downstream PRV, dan satu di jalur bypass paralel. Ini memungkinkan pemeliharaan (servis) PRV tanpa mematikan seluruh sistem.


3. Jalur Lurus (Straight Runs)

PRV (khususnya pilot) memerlukan aliran fluida stabil untuk merasakan tekanan secara akurat. Dibutuhkan 5-10 diameter pipa lurus di upstream dan downstream valve, bebas dari elbow atau fitting turbulen.


4. Lokasi Sensing Line (Jalur Sensor)

Untuk PRV pilot eksternal, sensing line P2 harus dipasang di downstream, pada titik non-turbulent (biasanya 5-10 diameter pipa setelah PRV), bukan tepat di outlet PRV.


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