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  1. Yoshitake Pressure Reducing Valve GD-6N Series
    Yoshitake Pressure Reducing Valve GD-6N Series
    Mulai

    Rp15.999.900

    0 Ulasan
  2. Yoshitake Pressure Reducing Valve GD-55R-80 Bronze Screw End Connection
    Yoshitake Pressure Reducing Valve GD-55R-80 Bronze Screw End Connection
    Mulai

    Rp1.699.900

    0 Ulasan
  3. Yoshitake Pressure Reducing Valve GD-45P Series
    Yoshitake Pressure Reducing Valve GD-45P Series
    Mulai

    Rp13.999.900

    0 Ulasan
  4. Yoshitake Pressure Reducing Valve GD-43G-10 Series
    Yoshitake Pressure Reducing Valve GD-43G-10 Series
    Mulai

    Rp55.999.900

    0 Ulasan
  5. Yoshitake Pressure Reducing Valve GD-43-10 Series
    Yoshitake Pressure Reducing Valve GD-43-10 Series
    Mulai

    Rp55.999.900

    0 Ulasan
  6. Yoshitake Pressure Reducing Valve GD-41N Series
    Yoshitake Pressure Reducing Valve GD-41N Series
    Mulai

    Rp43.999.900

    0 Ulasan
  7. Yoshitake Pressure Reducing Valve GD-28-NE Series
    Yoshitake Pressure Reducing Valve GD-28-NE Series
    Mulai

    Rp20.999.900

    0 Ulasan
  8. Yoshitake Pressure Reducing Valve GD-27S Series
    Yoshitake Pressure Reducing Valve GD-27S Series
    Mulai

    Rp87.999.900

    0 Ulasan
  9. Yoshitake Pressure Reducing Valve GD-27-N Flange End Connection
    Yoshitake Pressure Reducing Valve GD-27-N Flange End Connection
    Mulai

    Rp82.999.900

    0 Ulasan
  10. Yoshitake Lifting Safety Valve (D)
    Yoshitake Lifting Safety Valve (D)
    Mulai

    Rp2.699.900

    0 Ulasan
  11. Yoshitake Intake Valve VB-10 Series
    Yoshitake Intake Valve VB-10 Series
    Mulai

    Rp3.099.900

    0 Ulasan
  12. Yoshitake Intake And Exhaust Valve TAV-2 15A
    Yoshitake Intake And Exhaust Valve TAV-2 15A
    Mulai

    Rp7.599.900

    0 Ulasan
  13. Yoshitake Intake / Exhaust Valve (with Bamboo Shoot Type Hose Fitting) TAV-2
    Yoshitake Intake / Exhaust Valve (with Bamboo Shoot Type Hose Fitting) TAV-2
    Mulai

    Rp3.199.900

    0 Ulasan
  14. Yoshitake House-to-House Water Supply Pressure Reducing Valve GD-46SP Series
    Yoshitake House-to-House Water Supply Pressure Reducing Valve GD-46SP Series
    Mulai

    Rp9.099.900

    0 Ulasan
  15. Yoshitake House-to-House Water Supply Pressure Reducing Valve GD-46PP Series
    Yoshitake House-to-House Water Supply Pressure Reducing Valve GD-46PP Series
    Mulai

    Rp8.199.900

    0 Ulasan
  16. Yoshitake Hot Water Equipment Relief Valve AL Series
    Yoshitake Hot Water Equipment Relief Valve AL Series
    Mulai

    Rp1.799.900

    0 Ulasan
  17. Yoshitake Flexible Joint YBF-1E Series
    Yoshitake Flexible Joint YBF-1E Series
    Mulai

    Rp1.799.900

    0 Ulasan
  18. Yoshitake Ductile Bellows Seal Valve 150A
    Yoshitake Ductile Bellows Seal Valve 150A
    Mulai

    Rp88.999.900

    0 Ulasan
  19. Yoshitake Ductile Bellows Seal Valve 125A
    Yoshitake Ductile Bellows Seal Valve 125A
    Mulai

    Rp83.999.900

    0 Ulasan
  20. Yoshitake Ductile Bellows Seal Valve 100A
    Yoshitake Ductile Bellows Seal Valve 100A
    Mulai

    Rp49.999.900

    0 Ulasan
  21. Yoshitake Cold / Hot Water Valve (Angle Type) HV-3
    Yoshitake Cold / Hot Water Valve (Angle Type) HV-3
    Mulai

    Rp879.900

    0 Ulasan
  22. Yoshitake Automatic Freeze Prevention Valve Pop Drain 15A
    Yoshitake Automatic Freeze Prevention Valve Pop Drain 15A
    Mulai

    Rp4.199.900

    0 Ulasan
  23. Yoshitake Automatic Anti-Freezing Valve Pop Drain
    Yoshitake Automatic Anti-Freezing Valve Pop Drain
    Mulai

    Rp1.799.900

    0 Ulasan
  24. Yoshitake Air Operated Pressure Reducing Valve + Operation Standard
    Yoshitake Air Operated Pressure Reducing Valve + Operation Standard
    Mulai

    Rp6.399.900

    0 Ulasan
  25. OASIS Water Control Assembly
    OASIS Water Control Assembly
    Mulai

    Rp2.799.900

    0 Ulasan
  26. BELIMO Valve Actuator Non-Fail Safe
    BELIMO Valve Actuator Non-Fail Safe
    Mulai

    Rp139.999.900

    0 Ulasan
  27. WATTS Automatic Vent Valve
    WATTS Automatic Vent Valve
    Mulai

    Rp1.099.900

    0 Ulasan
  28. GMT Hand Valve with Nut
    GMT Hand Valve with Nut
    Mulai

    Rp159.900

    0 Ulasan
  29. Yoshitake Pressure Reducing Valve GD-41G
    Yoshitake Pressure Reducing Valve GD-41G
    Mulai

    Rp12.999.900

    0 Ulasan
  30. CHERNE Plug Valve
    CHERNE Plug Valve
    Mulai

    Rp10.999.900

    0 Ulasan
  31. VENN Waterworks Law Performance Standard Compliant Product Water/Hot Water Mixing Valve 1.0Mpa Or Less
    VENN Waterworks Law Performance Standard Compliant Product Water/Hot Water Mixing Valve 1.0Mpa Or Less
    Mulai

    Rp8.799.900

    0 Ulasan
  32. VENN Vacuum Adjustment Valve SUS Made for Steam/Air
    VENN Vacuum Adjustment Valve SUS Made for Steam/Air
    Mulai

    Rp15.999.900

    0 Ulasan
  33. VENN Small Bronze Cylinder Valve [Screw-In, On/Off Control, Valve Open When Pressurized, For High Temperatures]
    VENN Small Bronze Cylinder Valve [Screw-In, On/Off Control, Valve Open When Pressurized, For High Temperatures]
    Mulai

    Rp14.999.900

    0 Ulasan
  34. VENN Small Bronze Cylinder Valve [Screw-In, For On/Off Control, Valve Opens When Pressurized]
    VENN Small Bronze Cylinder Valve [Screw-In, For On/Off Control, Valve Opens When Pressurized]
    Mulai

    Rp13.999.900

    0 Ulasan
  35. VENN Small Bronze Cylinder Valve [Screw-In, For On/Off Control, Valve Closes When Pressurized]
    VENN Small Bronze Cylinder Valve [Screw-In, For On/Off Control, Valve Closes When Pressurized]
    Mulai

    Rp13.999.900

    0 Ulasan
  36. VENN Small Bronze Cylinder Valve [Flanged, For On/Off Control, Valve Opens When Pressurized]
    VENN Small Bronze Cylinder Valve [Flanged, For On/Off Control, Valve Opens When Pressurized]
    Mulai

    Rp15.999.900

    0 Ulasan
  37. VENN Small Bronze Cylinder Valve [Flanged, For On/Off Control, Valve Closes When Pressurized]
    VENN Small Bronze Cylinder Valve [Flanged, For On/Off Control, Valve Closes When Pressurized]
    Mulai

    Rp15.999.900

    0 Ulasan
  38. VENN SCS Small Cylinder Valve [Screw-In, For On/Off Control, Valve Opens When Pressurized]
    VENN SCS Small Cylinder Valve [Screw-In, For On/Off Control, Valve Opens When Pressurized]
    Mulai

    Rp20.999.900

    0 Ulasan
  39. VENN SCS Small Cylinder Valve [Screw-In, For On/Off Control, Valve Open When Pressurized, For High Temperature]
    VENN SCS Small Cylinder Valve [Screw-In, For On/Off Control, Valve Open When Pressurized, For High Temperature]
    Mulai

    Rp23.999.900

    0 Ulasan
  40. VENN SCS Small Cylinder Valve [Screw-In, For On/Off Control, Valve Closes When Pressurized]
    VENN SCS Small Cylinder Valve [Screw-In, For On/Off Control, Valve Closes When Pressurized]
    Mulai

    Rp20.999.900

    0 Ulasan
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  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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