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  1. VENN AF4S-G FC Air Release Valve [General Purpose]
    VENN AF4S-G FC Air Release Valve [General Purpose]
    Mulai

    Rp2.499.900

    0 Ulasan
  2. TACO Mixing Valves
    TACO Mixing Valves
    Mulai

    Rp3.699.900

    0 Ulasan
  3. KENT Valve Air Release SS Float KARV Series
    KENT Valve Air Release SS Float KARV Series
    Mulai

    Rp4.299.900

    0 Ulasan
  4. Osaka Pipe Fitting & Valve All stainless steel foot valve Tip foot Screw type Without lever
    Osaka Pipe Fitting & Valve All stainless steel foot valve Tip foot Screw type Without lever
    Mulai

    Rp11.999.900

    0 Ulasan
  5. Osaka Pipe Fitting & Valve All stainless steel foot valve Intermediate foot Screw type
    Osaka Pipe Fitting & Valve All stainless steel foot valve Intermediate foot Screw type
    Mulai

    Rp14.999.900

    0 Ulasan
  6. Rubbermaid Thermostatic Mixing (Komponen Valve)
    Rubbermaid Thermostatic Mixing (Komponen Valve)
    Mulai

    Rp6.099.900

    0 Ulasan
  7. Yoshitake Air Vent Valve TA-16L Series
    Yoshitake Air Vent Valve TA-16L Series
    Mulai

    Rp6.499.900

    0 Ulasan
  8. TACO Water Pressure Reducing Valves
    TACO Water Pressure Reducing Valves
    Mulai

    Rp4.899.900

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

    Rp12.999.900

    0 Ulasan
  10. VENN Large Capacity Water Level Adjustment Valve
    VENN Large Capacity Water Level Adjustment Valve
    Mulai

    Rp109.999.900

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

    Rp32.999.900

    0 Ulasan
  12. VENN FC Inner Surface Epoxy Resin Painted Pressure Reducing Valve [0.3-0.7/0.95Mpa/Flange]
    VENN FC Inner Surface Epoxy Resin Painted Pressure Reducing Valve [0.3-0.7/0.95Mpa/Flange]
    Mulai

    Rp84.999.900

    0 Ulasan
  13. VENN Calm SCS Pressure Reducing Valve [Flange]
    VENN Calm SCS Pressure Reducing Valve [Flange]
    Mulai

    Rp70.999.900

    0 Ulasan
  14. Osaka Pipe Fitting & Valve All stainless steel foot valve Tip foot Screw-in type With lever
    Osaka Pipe Fitting & Valve All stainless steel foot valve Tip foot Screw-in type With lever
    Mulai

    Rp11.999.900

    0 Ulasan
  15. WATTS Anti-Siphon Pressure Vacuum Breaker
    WATTS Anti-Siphon Pressure Vacuum Breaker
    Mulai

    Rp5.999.900

    0 Ulasan
  16. SIEMENS Valve Body
    SIEMENS Valve Body
    Mulai

    Rp1.599.900

    0 Ulasan
  17. VENN Pressure Reducing Valve RP-9 Type (For Steam) (FCD, CAC)
    VENN Pressure Reducing Valve RP-9 Type (For Steam) (FCD, CAC)
    Mulai

    Rp14.999.900

    0 Ulasan
  18. VENN Pressure Reducing Valve RD-41 Type (For Steam) (Body SCS, Screw-In)
    VENN Pressure Reducing Valve RD-41 Type (For Steam) (Body SCS, Screw-In)
    Mulai

    Rp19.999.900

    0 Ulasan
  19. VENN Constant Flow Valve (For Central Hot Water Supply System (Constant Flow Circulation System)) FD-11N Type
    VENN Constant Flow Valve (For Central Hot Water Supply System (Constant Flow Circulation System)) FD-11N Type
    Mulai

    Rp2.399.900

    0 Ulasan
  20. CASH ACME Mixing Valves
    CASH ACME Mixing Valves
    Mulai

    Rp3.199.900

    0 Ulasan
  21. TRUSCO Miniature Hand Operated Air Valves
    TRUSCO Miniature Hand Operated Air Valves
    Mulai

    Rp669.900

    0 Ulasan
  22. Osaka Pipe Fitting & Valve All cast iron spring type foot valve Intermediate foot 10K flange type
    Osaka Pipe Fitting & Valve All cast iron spring type foot valve Intermediate foot 10K flange type
    Mulai

    Rp6.799.900

    0 Ulasan
  23. Wipro Three Way Valve
    Wipro Three Way Valve
    Mulai

    Rp109.900

    0 Ulasan
  24. SARCO Thermodynamic Trap
    SARCO Thermodynamic Trap
    Mulai

    Rp17.999.900

    0 Ulasan
  25. Yoshitake Temperature Control Valve OB-1 Series
    Yoshitake Temperature Control Valve OB-1 Series
    Mulai

    Rp50.999.900

    0 Ulasan
  26. Yoshitake Safety Valve AL-31 Series
    Yoshitake Safety Valve AL-31 Series
    Mulai

    Rp65.999.900

    0 Ulasan
  27. Yoshitake Safety Valve AL-300T Series
    Yoshitake Safety Valve AL-300T Series
    Mulai

    Rp14.999.900

    0 Ulasan
  28. Yoshitake Pressure Reducing Valve GP-1000T FCD450 Flange End Connection
    Yoshitake Pressure Reducing Valve GP-1000T FCD450 Flange End Connection
    Mulai

    Rp9.999.900

    0 Ulasan
  29. Yoshitake Pressure Reducing Valve GD-27-NE Series
    Yoshitake Pressure Reducing Valve GD-27-NE Series
    Mulai

    Rp35.999.900

    0 Ulasan
  30. Yoshitake Motorized Valve MD-35R Series
    Yoshitake Motorized Valve MD-35R Series
    Mulai

    Rp12.999.900

    0 Ulasan
  31. Yoshitake Air Vent Valve TV-2 15A
    Yoshitake Air Vent Valve TV-2 15A
    Mulai

    Rp10.999.900

    0 Ulasan
  32. Yoshitake Air Vent Valve TA-2C series
    Yoshitake Air Vent Valve TA-2C series
    Mulai

    Rp3.599.900

    0 Ulasan
  33. Yoshitake Air Vent Valve TA-16CVA Series
    Yoshitake Air Vent Valve TA-16CVA Series
    Mulai

    Rp7.599.900

    0 Ulasan
  34. DIXON VALVE COUPLING Mini Needle Valve Female to Female
    DIXON VALVE COUPLING Mini Needle Valve Female to Female
    Mulai

    Rp2.899.900

    0 Ulasan
  35. VENN FC Inner Surface Epoxy Resin Painted Pump Relief Valve [0.05-0.35Mpa/For Water]
    VENN FC Inner Surface Epoxy Resin Painted Pump Relief Valve [0.05-0.35Mpa/For Water]
    Mulai

    Rp84.999.900

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

    Rp21.999.900

    0 Ulasan
  37. Paloma Stop Valve
    Paloma Stop Valve
    Mulai

    Rp439.900

    0 Ulasan
  38. Power Valve Foot Valve
    Power Valve Foot Valve
    Mulai

    Rp17.900

    0 Ulasan
  39. BELL GOSSETT Water Pressure Reducing Valves
    BELL GOSSETT Water Pressure Reducing Valves
    Mulai

    Rp2.899.900

    0 Ulasan
  40. WATTS Pressure Relief Valve
    WATTS Pressure Relief Valve
    Mulai

    Rp5.599.900

    0 Ulasan
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Halaman Terkait

  1. foot valve 6 inch
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  9. water pressure
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  11. yoshitake valve
  12. pressure reducing valve yoshitake
  13. air valve
  14. water pressure reducing valve
  15. Water Valve
  16. kran air air
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  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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