What does a check valve do?

It prevents reverse flow in a piping system.

Is a check valve one-way?

Yes, it only allows flow in one direction.

Can check valves be installed vertically?

Yes, but only certain types like lift or spring-loaded ones.

Do check valves need maintenance?

Generally low-maintenance, but periodic checks help.

Where are check valves commonly used?

Pumps, pipelines, HVAC, water treatment, and chemical systems.

Katup Periksa

Katup periksa pelat ganda yang kuat dan berbantalan karet

FOTO MENUNJUKKAN SPESIFIKASI SEPERTI DI BAWAH INI
UKURAN:DN100
PERINGKAT:PN16
BODI DAN KAP MESIN : ASTM A536 65-45-12
CAKRAM: ASTM A536 65-45-12
POROS: 416SS
KURSI: EPDM

Lihat detailnya
125Lb Bronze Seated Swing Check Valve-MSS SP-71

Valve Type Swing Check
Body Material Cast Iron (ASTM A126 Class B) / Ductile Iron (ASTM A536)
Disc Material Cast Iron / Ductile Iron
Seat Material Bronze Alloy (e.g., ASTM B62 C83600)
Connection Type Flanged
Flange Standard ASME B16.1 (Cast Iron) / ASME B16.5 (Class 125/150)
Pressure Rating Class 125 / Class 150
Temp. Range -10°C to +200°C
Media Water, Steam, Oil, Gas, other non-corrosive fluids

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2″-2500LB Inconel 625 Lift Check Valve

Nominal Size 2″ (DN50)
Pressure Rating Class 2500 (PN 420)
Valve Type Lift Check Valve – Automatic Non Return
Body Construction Pressure Seal Bonnet (recommended for Class 2500)
End Connections Flanged – ASME B16.5 Class 2500, Ring Type Joint (RTJ) facing standard
Temperature Range –196°C ~ +650°C (depending on trim)
Suitable Media Sour gas, seawater, high pressure steam, superheated water, corrosive chemicals, acidic environments
Flow Direction Horizontal (preferred) or vertical with upward flow

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API 6D/594 Standard Swing Check Valve

Valve Type Swing Check Valve (Full Bore)
Design Standard API 6D (24th Edition)
Pressure Standard ASME B16.34
Face-to-Face ASME B16.10 / API 6D Table 8
End Connection RF Flanges (ASME B16.5) or BW Ends (ASME B16.25)
Fire Safe Design API 607 / API 6FA (Optional)

Lihat detailnya
1″-600LB-SW Close Die Forged Lifting Check Valve

Valve Type Lifting Check Valve (Piston / Disc Type)
Nominal Size 1 inch (DN25)
Pressure Rating Class 600
Connection Type Socket Weld (SW) Ends
Body / Bonnet Material ASTM A105 (Carbon Steel) or ASTM A182 F316 (Stainless Steel)
Operation Automatic (Flow-dependent)

Lihat detailnya
DN8-PN40 Y Pattern Lift Check Valve

Nominal Diameter (DN) DN8
Nominal Pressure (PN) PN40 (40 bar)
Body Configuration Y Pattern
Valve Type Lift Check (Spring-loaded)
Applicable Media Water, oil, gas, non-corrosive or mildly corrosive media
Temperature Range -20°C to +180°C (depending on sealing material)
End Connections Threaded / Socket Weld / Butt Weld (optional)
Flow Direction Unidirectional, arrow marked on body

Lihat detailnya
DN50-PN40-RF Axial Check Valve

Nominal Diameter (DN) 50 mm
Nominal Pressure (PN) 40 bar
Connection Type RF (Raised Face Flange)
Design Type Axial, Spring-Assisted
Applicable Media Water, Oil, Steam, Gas, etc.
Media Temperature Range -20°C ~ +200°C
Body Material Carbon Steel WCB / Stainless Steel 304 / 316
Disc Material SS 304/316 + Stellite hard-faced sealing
Seat Seal Metal Hard Seal / Soft Seal (PTFE)
Spring Material SS 316 / Inconel X-750
Flange Standard EN 1092-1 (PN40) / ASME B16.5 (Class 300)
Cracking Pressure ≤ 0.1 bar
Full Flow Pressure Drop ≤ 0.02 bar

Lihat detailnya
DN80-PN40-RF Axial Check Valve

Nominal Size DN80
Pressure Rating PN40 (4.0 MPa / 40 bar / 580 psi)
Connection Type Flanged, Raised Face (RF)
Flange Standard EN 1092 1 (Type B1 or B2) / ASME B16.5 optional
Design Standard API 594 (Type B – wafer or lug) or manufacturer specific
Face to Face Dimension Wafer type: per API 594 / EN 558 Series 48 (approx. 60 – 70 mm)
Construction Axial flow – streamlined body, centre guided disc, spring assisted closure
Body Material WCB (Carbon Steel) / CF8M (316 SS) / Ductile Iron
Disc / Trim Stainless steel (CF8M) with optional Stellite hardfacing

Lihat detailnya
DN250-PN16 Wafer Dual Plate Check Valve

Product Name Wafer Dual Plate Check Valve / Wafer Double Door Check Valve
Type/Series General Purpose (e.g., Series equivalent to Pegler V909, Oventrop, Honeywell Impact)
Nominal Diameter DN250 (10 inches)
Nominal Pressure PN16
End Connection Wafer Type Design, designed for installation between PN16 flanges (According to EN 1092-2, ISO 7005-2, or ASME B16.5 Class 150)
Design Structure Dual Plate / Double Door with Spring-Loaded Hinge

Lihat detailnya
DN400-PN16-RF Metal Seated SS Swing Check Valve

Nominal Size DN400
Pressure Rating PN16 (1.6 MPa / 16 bar)
End Connection Flanged, Raised Face (RF) — EN 1092 1 / ASME B16.5 or equivalent
Body Construction Swing check, metal seated, with external counterweight mechanism
Temperature Range –29°C ~ +400°C (depending on seat hardfacing material)
Applicable Media Water, steam, oil, corrosive fluids, high temperature services
Flange Standard EN 1092 1 PN16 / ASME B16.5 Class 150 (customer specified)
Face to Face EN 558 Series 1 / ASME B16.10 / API 6D

Lihat detailnya
CF3M Wafer Dual Plate Check Valve

Pressure Rating PN16 (Equivalent to Class 150)
Nominal Size DN50 – DN600 (NPS 2″ – 24″) Specify as required
End Connection Wafer Type / Lug Type Select as required
Face to Face Dimension API 594 / EN 558 Series 20
Sealing Type Metal-to-Metal Hard Seal

Lihat detailnya
1/2″-800LB Close Die Forged Lift Check Valve

Valve Type Lift Check Valve
Design Standard API 602 / ASME B16.34 / BS 5352
Nominal Size 1/2 inch (DN15)
Pressure Class Class 800 LB (PN130)
Structure Type Lift Type, Bolted Bonnet
Connection Type NPT Threaded (ASME B1.20.1) or Socket Weld (ASME B16.11)
Installation Horizontal Piping
Body Material ASTM A105N (Forged Carbon Steel)

Lihat detailnya

Katup periksa, juga dikenal sebagai katup satu arah, adalah jenis katup yang memungkinkan fluida atau gas mengalir hanya dalam satu arah, mencegah aliran balik yang dapat merusak peralatan atau mengganggu kinerja sistem. Katup ini beroperasi secara otomatis dan tidak memerlukan kontrol manual atau eksternal. Di dalam katup, sebuah cakram atau mekanisme serupa terbuka ketika fluida mengalir ke arah yang dituju dan menutup jika alirannya berbalik arah. Ada beberapa jenis katup periksa, seperti tipe ayun, angkat, bola, dan diafragma, masing-masing dirancang untuk aplikasi atau media tertentu. Misalnya, katup periksa ayun umumnya digunakan dalam sistem air dan air limbah, sementara katup periksa angkat lebih cocok untuk saluran bertekanan tinggi. Katup periksa sangat penting dalam melindungi pompa, kompresor, dan pipa dari kerusakan aliran balik, menjaga tekanan, dan mencegah kontaminasi. Desainnya yang sederhana dan beroperasi sendiri menjadikannya ideal untuk penggunaan industri dan rumah tangga, terutama dalam sistem yang sangat mengutamakan keandalan dan keamanan.

FAQ Katup Periksa