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  1. Yoshitake Pressure Reducing Valve GD-41 Series
    Yoshitake Pressure Reducing Valve GD-41 Series
    Mulai

    Rp12.999.900

    0 Ulasan
  2. Yoshitake Pressure Reducing Valve Flanged GD-200 Series
    Yoshitake Pressure Reducing Valve Flanged GD-200 Series
    Mulai

    Rp10.999.900

    0 Ulasan
  3. Yoshitake Air Vent Valve TA-2 Series
    Yoshitake Air Vent Valve TA-2 Series
    Mulai

    Rp3.699.900

    0 Ulasan
  4. Yoshitake Air Vent
    Yoshitake Air Vent
    Mulai

    Rp6.299.900

    0 Ulasan
  5. WATTS Reduced Pressure Zone Backflow Preventer
    WATTS Reduced Pressure Zone Backflow Preventer
    Mulai

    Rp11.999.900

    0 Ulasan
  6. FEBCO Reduced-Pressure Zone Backflow Preventer
    FEBCO Reduced-Pressure Zone Backflow Preventer
    Mulai

    Rp60.999.900

    0 Ulasan
  7. VENN Pressure Reducing Valve (For Steam) RD-30 Type
    VENN Pressure Reducing Valve (For Steam) RD-30 Type
    Mulai

    Rp8.999.900

    0 Ulasan
  8. VENN KY6-G2 FC Y Strainer [Flange / Standard 60 Mesh]
    VENN KY6-G2 FC Y Strainer [Flange / Standard 60 Mesh]
    Mulai

    Rp1.699.900

    0 Ulasan
  9. VENN Constant Water Level Valve LP-8N Type (For Water, General Use) (Body Fc, Nominal Diameter 65 Or More)
    VENN Constant Water Level Valve LP-8N Type (For Water, General Use) (Body Fc, Nominal Diameter 65 Or More)
    Mulai

    Rp8.499.900

    0 Ulasan
  10. WATTS REGULATOR Mixing Valves
    WATTS REGULATOR Mixing Valves
    Mulai

    Rp13.999.900

    0 Ulasan
  11. WATTS Mixing Valves
    WATTS Mixing Valves
    Mulai

    Rp2.699.900

    0 Ulasan
  12. Ojiden Foot Air Valve
    Ojiden Foot Air Valve
    Mulai

    Rp3.699.900

    0 Ulasan
  13. VENN Air Vent Valve AF-10
    VENN Air Vent Valve AF-10
    Mulai

    Rp4.599.900

    0 Ulasan
  14. Osaka Pipe Fitting & Valve Cast iron main part stainless steel foot valve Tip foot screw type with lever
    Osaka Pipe Fitting & Valve Cast iron main part stainless steel foot valve Tip foot screw type with lever
    Mulai

    Rp5.399.900

    0 Ulasan
  15. Osaka Pipe Fitting & Valve Cast iron main part stainless steel foot valve intermediate foot screw type
    Osaka Pipe Fitting & Valve Cast iron main part stainless steel foot valve intermediate foot screw type
    Mulai

    Rp6.499.900

    0 Ulasan
  16. Osaka Pipe Fitting & Valve Cast iron main part gunmetal foot valve tip foot screw type without lever
    Osaka Pipe Fitting & Valve Cast iron main part gunmetal foot valve tip foot screw type without lever
    Mulai

    Rp5.499.900

    0 Ulasan
  17. Osaka Pipe Fitting & Valve Cast iron main part gunmetal foot valve tip foot screw type with lever
    Osaka Pipe Fitting & Valve Cast iron main part gunmetal foot valve tip foot screw type with lever
    Mulai

    Rp5.499.900

    0 Ulasan
  18. Osaka Pipe Fitting & Valve All gunmetal foot valve Tip foot Screw-in type With lever
    Osaka Pipe Fitting & Valve All gunmetal foot valve Tip foot Screw-in type With lever
    Mulai

    Rp8.799.900

    0 Ulasan
  19. Osaka Pipe Fitting & Valve All gunmetal foot valve Tip foot 10K flange Without lever
    Osaka Pipe Fitting & Valve All gunmetal foot valve Tip foot 10K flange Without lever
    Mulai

    Rp13.999.900

    0 Ulasan
  20. Osaka Pipe Fitting & Valve All gunmetal foot valve Tip foot 10K flange With lever
    Osaka Pipe Fitting & Valve All gunmetal foot valve Tip foot 10K flange With lever
    Mulai

    Rp13.999.900

    0 Ulasan
  21. Osaka Pipe Fitting & Valve All gunmetal foot valve Intermediate foot Screw type
    Osaka Pipe Fitting & Valve All gunmetal foot valve Intermediate foot Screw type
    Mulai

    Rp11.999.900

    0 Ulasan
  22. Zanru Stop Valve
    Zanru Stop Valve
    Mulai

    Rp219.900

    0 Ulasan
  23. Yoshitake Pressure Reducing Valve GD-26-NE Series
    Yoshitake Pressure Reducing Valve GD-26-NE Series
    Mulai

    Rp19.999.900

    0 Ulasan
  24. BELIMO Valve
    BELIMO Valve
    Mulai

    Rp2.999.900

    0 Ulasan
  25. ARITA Swing Check Bronze
    ARITA Swing Check Bronze
    Mulai

    Rp1.099.900

    0 Ulasan
  26. SAILING Klep Pemanas
    SAILING Klep Pemanas
    Mulai

    Rp50.900

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

    Rp43.999.900

    0 Ulasan
  28. VENN Main Body SCS Pressure Reducing Valve [Flange Type 1.6Mpa/0.05-0.35Mpa]
    VENN Main Body SCS Pressure Reducing Valve [Flange Type 1.6Mpa/0.05-0.35Mpa]
    Mulai

    Rp50.999.900

    0 Ulasan
  29. VENN FCD Internal Epoxy Pressure Reducing Valve [0.3-1.2Mpa, J20KRF, Fire Certified Product]
    VENN FCD Internal Epoxy Pressure Reducing Valve [0.3-1.2Mpa, J20KRF, Fire Certified Product]
    Mulai

    Rp93.999.900

    0 Ulasan
  30. VENN FC Nylon Coated Pressure Reducing Valve [0.3-0.95Mpa/Flange]
    VENN FC Nylon Coated Pressure Reducing Valve [0.3-0.95Mpa/Flange]
    Mulai

    Rp189.999.900

    0 Ulasan
  31. VENN FC Nylon Coat Circuit Valve [0.3-0.7Mpa, Flange, For Hot Water/Water]
    VENN FC Nylon Coat Circuit Valve [0.3-0.7Mpa, Flange, For Hot Water/Water]
    Mulai

    Rp29.999.900

    0 Ulasan
  32. VENN Constant Water Level Valve LP-8Hn Type (For Water, with General Adjustment Mechanism) (Body Cac, Nominal Diameter 50 Or Less)
    VENN Constant Water Level Valve LP-8Hn Type (For Water, with General Adjustment Mechanism) (Body Cac, Nominal Diameter 50 Or Less)
    Mulai

    Rp9.999.900

    0 Ulasan
  33. CASH VALVE Pressure Relief Valve
    CASH VALVE Pressure Relief Valve
    Mulai

    Rp59.999.900

    0 Ulasan
  34. GAST Pressure Relief Valve (Katup Pengaman Angin)
    GAST Pressure Relief Valve (Katup Pengaman Angin)
    Mulai

    Rp2.199.900

    0 Ulasan
  35. Yoshitake Pressure Reducing Valve GD-200 FCD450 Flange End Connection
    Yoshitake Pressure Reducing Valve GD-200 FCD450 Flange End Connection
    Mulai

    Rp24.999.900

    0 Ulasan
  36. Yoshitake Pressure Reducing Valve (for Cold/Hot Water) GD-26-NE Series
    Yoshitake Pressure Reducing Valve (for Cold/Hot Water) GD-26-NE Series
    Mulai

    Rp7.499.900

    0 Ulasan
  37. Yoshitake Air Vent AV Series
    Yoshitake Air Vent AV Series
    Mulai

    Rp3.599.900

    0 Ulasan
  38. VENN RD44N-FMPL2 Benkei New Standard Compliant Door-To-Side Water Supply Pressure Reducing Valve [0.20MPa/Set]
    VENN RD44N-FMPL2 Benkei New Standard Compliant Door-To-Side Water Supply Pressure Reducing Valve [0.20MPa/Set]
    Mulai

    Rp3.699.900

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

    Rp15.999.900

    0 Ulasan
  40. VENN HB1A-F Radiator Valve [For Steam / Angle]
    VENN HB1A-F Radiator Valve [For Steam / Angle]
    Mulai

    Rp1.599.900

    0 Ulasan
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  69. Osaka Pipe Fitting & Valve 34 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

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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