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  1. VENN Pressure Reducing Valve For Door-To-Door Water Supply (with Stopcock) (For Water / Hot Water) RD-45Sun Type
    VENN Pressure Reducing Valve For Door-To-Door Water Supply (with Stopcock) (For Water / Hot Water) RD-45Sun Type
    Mulai

    Rp3.699.900

    0 Ulasan
  2. VENN Pressure Reducing Valve [3.0-10Kpa, Flange, For Low Pressure Gas]
    VENN Pressure Reducing Valve [3.0-10Kpa, Flange, For Low Pressure Gas]
    Mulai

    Rp51.999.900

    0 Ulasan
  3. VENN Pressure Reducing Valve (For Water / Hot Water / Air) RD-35FN Type
    VENN Pressure Reducing Valve (For Water / Hot Water / Air) RD-35FN Type
    Mulai

    Rp56.999.900

    0 Ulasan
  4. VENN Main Body SCS Pressure Reducing Valve [Flange Type 16Kff 1.6Mpa/0.3-0.7Mpa]
    VENN Main Body SCS Pressure Reducing Valve [Flange Type 16Kff 1.6Mpa/0.3-0.7Mpa]
    Mulai

    Rp50.999.900

    0 Ulasan
  5. VENN Fukutaro SCS Safety Relief Valve [Over 0.5 1.0 Mpa, with Lever]
    VENN Fukutaro SCS Safety Relief Valve [Over 0.5 1.0 Mpa, with Lever]
    Mulai

    Rp10.999.900

    0 Ulasan
  6. VENN Fukutaro SCS Safety Relief Valve [Over 0.1 0.2 Mpa, with Lever, Soft Seat]
    VENN Fukutaro SCS Safety Relief Valve [Over 0.1 0.2 Mpa, with Lever, Soft Seat]
    Mulai

    Rp11.999.900

    0 Ulasan
  7. VENN Fukutaro SCS Safety Relief Valve [0.05-0.1Mpa, with Lever]
    VENN Fukutaro SCS Safety Relief Valve [0.05-0.1Mpa, with Lever]
    Mulai

    Rp10.999.900

    0 Ulasan
  8. VENN Fukutaro New Standard Compliant Bronze/SCS Safety Relief Valve [0.2 Over 0.5]
    VENN Fukutaro New Standard Compliant Bronze/SCS Safety Relief Valve [0.2 Over 0.5]
    Mulai

    Rp4.299.900

    0 Ulasan
  9. VENN Fukutaro FC/SCS Safety Relief Valve [0.5-1.0Mpa/with Lever]
    VENN Fukutaro FC/SCS Safety Relief Valve [0.5-1.0Mpa/with Lever]
    Mulai

    Rp9.799.900

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

    Rp3.799.900

    0 Ulasan
  11. VENN Fukutaro Bronze/SCS Safety Relief Valve
    VENN Fukutaro Bronze/SCS Safety Relief Valve
    Mulai

    Rp2.399.900

    0 Ulasan
  12. VENN FC/SUS Temperature Control Valve [Flange/Single Seat/For Heating]
    VENN FC/SUS Temperature Control Valve [Flange/Single Seat/For Heating]
    Mulai

    Rp35.999.900

    0 Ulasan
  13. VENN FC/SCS Temperature Control Valve [Flange/Single Seat/For Low Temperature Heating (Liquid)]
    VENN FC/SCS Temperature Control Valve [Flange/Single Seat/For Low Temperature Heating (Liquid)]
    Mulai

    Rp53.999.900

    0 Ulasan
  14. VENN FC Primary Pressure Regulating Valve [3.0 Over 10Kpa, Flange, For Low Pressure Gas]
    VENN FC Primary Pressure Regulating Valve [3.0 Over 10Kpa, Flange, For Low Pressure Gas]
    Mulai

    Rp51.999.900

    0 Ulasan
  15. VENN FC Nylon Primary Pressure Regulating Valve [0.05-0.35Mpa]
    VENN FC Nylon Primary Pressure Regulating Valve [0.05-0.35Mpa]
    Mulai

    Rp189.999.900

    0 Ulasan
  16. VENN Constant Water Level Valve LP-9N Type (For Water, General Use) (Main Body Cac, Nominal Diameter 65 Or More)
    VENN Constant Water Level Valve LP-9N Type (For Water, General Use) (Main Body Cac, Nominal Diameter 65 Or More)
    Mulai

    Rp40.999.900

    0 Ulasan
  17. VENN Constant Water Level Valve LP-8Hn Type (For Water, with General Adjustment Mechanism) (Main Body Fc, Nominal Diameter 65 Or More)
    VENN Constant Water Level Valve LP-8Hn Type (For Water, with General Adjustment Mechanism) (Main Body Fc, Nominal Diameter 65 Or More)
    Mulai

    Rp29.999.900

    0 Ulasan
  18. VENN Calm Chlorine Water Resistant SCS Pressure Reducing Valve [Flange/Water/Hot Water/0.05-0.35Mp]
    VENN Calm Chlorine Water Resistant SCS Pressure Reducing Valve [Flange/Water/Hot Water/0.05-0.35Mp]
    Mulai

    Rp54.999.900

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

    Rp11.999.900

    0 Ulasan
  20. VENN Calm Chlorine Water Resistant CAC Pressure Reducing Valve [Flange, Water, Hot Water, 0.05-0.35Mp]
    VENN Calm Chlorine Water Resistant CAC Pressure Reducing Valve [Flange, Water, Hot Water, 0.05-0.35Mp]
    Mulai

    Rp21.999.900

    0 Ulasan
  21. VENN Ball Joint Ju-3F Type
    VENN Ball Joint Ju-3F Type
    Mulai

    Rp24.999.900

    0 Ulasan
  22. VENN Ball Joint + Ju-1 Type
    VENN Ball Joint + Ju-1 Type
    Mulai

    Rp12.999.900

    0 Ulasan
  23. Waterplus Stop Valve
    Waterplus Stop Valve
    Mulai

    Rp61.900

    0 Ulasan
  24. NOGA Control Valve
    NOGA Control Valve
    Mulai

    Rp1.499.900

    0 Ulasan
  25. FM Valve valve + constant water level valve + straight type core built-in type S-3K type + main valve + sub valve (FM-20) + set product
    FM Valve valve + constant water level valve + straight type core built-in type S-3K type + main valve + sub valve (FM-20) + set product
    Mulai

    Rp21.999.900

    0 Ulasan
  26. WATTS Temperature and Pressure Relief Valve
    WATTS Temperature and Pressure Relief Valve
    Mulai

    Rp9.999.900

    0 Ulasan
  27. WATTS Single Access Cover and Modular Check Construction for Easier Maintenance
    WATTS Single Access Cover and Modular Check Construction for Easier Maintenance
    Mulai

    Rp34.999.900

    0 Ulasan
  28. WATTS Relief Valve
    WATTS Relief Valve
    Mulai

    Rp27.999.900

    0 Ulasan
  29. WATTS Backflow Preventer
    WATTS Backflow Preventer
    Mulai

    Rp24.999.900

    0 Ulasan
  30. KAKUDAI MFG Bonpamini for connection to washing machine
    KAKUDAI MFG Bonpamini for connection to washing machine
    Mulai

    Rp1.799.900

    0 Ulasan
  31. WATTS Total Repair Kit
    WATTS Total Repair Kit
    Mulai

    Rp7.399.900

    0 Ulasan
  32. WATTS Reduced Pressure Zone Total Repair Kit
    WATTS Reduced Pressure Zone Total Repair Kit
    Mulai

    Rp10.999.900

    0 Ulasan
  33. SIEMENS Mixing Valve
    SIEMENS Mixing Valve
    Mulai

    Rp1.899.900

    0 Ulasan
  34. Yoshitake Water Pressure Reducing Valve Secondary Pressure (A)
    Yoshitake Water Pressure Reducing Valve Secondary Pressure (A)
    Mulai

    Rp13.999.900

    0 Ulasan
  35. Yoshitake Thermo Radiator Valve (Sensor Part / TH Type)
    Yoshitake Thermo Radiator Valve (Sensor Part / TH Type)
    Mulai

    Rp889.900

    0 Ulasan
  36. Yoshitake Thermo Radiator Valve (Sensor Part / LH Type)
    Yoshitake Thermo Radiator Valve (Sensor Part / LH Type)
    Mulai

    Rp1.199.900

    0 Ulasan
  37. Yoshitake Thermo Radiator Valve (Angle Type)
    Yoshitake Thermo Radiator Valve (Angle Type)
    Mulai

    Rp829.900

    0 Ulasan
  38. Yoshitake Pressure Reducing Valve with Bypass GD-27BP CAC Bronze Flange End Connection
    Yoshitake Pressure Reducing Valve with Bypass GD-27BP CAC Bronze Flange End Connection
    Mulai

    Rp23.999.900

    0 Ulasan
  39. Yoshitake Pressure Reducing Valve GP-1000H FCD450 Flange End Connection
    Yoshitake Pressure Reducing Valve GP-1000H FCD450 Flange End Connection
    Mulai

    Rp11.999.900

    0 Ulasan
  40. Yoshitake Pressure Reducing Valve GD-45P FCD450 Threaded NPT End Connection
    Yoshitake Pressure Reducing Valve GD-45P FCD450 Threaded NPT End Connection
    Mulai

    Rp5.099.900

    0 Ulasan
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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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