Axial No-Slam Check Valve (NSC-NSZ-NFC-NFZ-SSC-SSZ-SFC-SFZ series) - Velan
COO — Certificate of Origin
Bukti asal negara produksi
COC — Certificate of Conformance
Kesesuaian produk dengan spesifikasi
Test Certificate 3.1
EN 10204
Mill cert hasil uji material dari pabrikan
Dokumen pendukung
Datasheet, packing list, invoice + faktur pajak
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Produk original, bukan replika
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Axial No-Slam Check Valve (NSC-NSZ-NFC-NFZ-SSC-SSZ-SFC-SFZ series) - Velan

Product Details
Spec Detail
Size Range NPS 2 - 56 (DN 50-1400) NPS 1.13/16- 21.1/4 (DN 46-540)
Pressure Class ASME 150 - ASME 2500 API 5000-API 15000
Standard Connections Flanged (RF, RTJ) as per B16.5 &B16.47, Butt Welded as per B16.25, Hub connection, 6B, 6BX as per API 6A
Series NSC-NSZ-NFC-NFZ-SSC-SSZ-SFC-SFZ
Valve design Based on API 6D and customer requirements based on API 6A and customer requirements
Temperature range -150 to 662°F (-101 to 350°C)
Face-to-face As per API 6D standard/As per API 6A standard
End connections RF, RTJ as per B16.5 &B16.47 BW, Butt Welded as per B16.25 Hub connection 6B, 6BX as per API6A
Body design Cast one-piece / bolted two pieces for size >20 inch. Forged bolted one-piece/ three-piece
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Size range— tanyakan via inquiry
Pressure class— tanyakan via inquiry
Harga menyesuaikan spesifikasi akhir
Size, class, dan end connection menentukan harga akhir. Kirim detail spesifikasi untuk penawaran akurat.
Email Inquiry dengan Spesifikasi
Kami merespon dalam 1 jam kerja (Senin–Jumat)

Deskripsi & fitur Cara order FAQ

Velan ABV API 6D No-Slam Check Valves – Reliable Reverse Flow Protection

As a leading Velan Valve Supplier, Distributor, and Stockist, we proudly offer Velan ABV’s API 6D No-Slam Check Valves—engineered for silent, automatic reverse flow prevention in critical pipelines. These high-performance valves ensure zero water hammer, rapid closure, and unmatched reliability, making them ideal for oil & gas, petrochemical, and power industries.

Key Features & Benefits

✔ Ultra-Fast Spring-Assisted Closing – Powerful spring and short stroke design eliminate reverse flow before pressure surges occur. ✔ Compact & Lightweight Option – Space-saving design without compromising durability. ✔ Metal-Seated with Hard Facing – Extended service life with CoCr or Stellite-coated disc/seats. ✔ Venturi Flow Design – Minimized pressure drop for efficient system performance. ✔ No Chattering or Jamming – Precision engineering ensures smooth operation under variable pressures. ✔ API 6D & Fire-Safe Certified – Compliant with API 6D, ISO 5208, API 598, API 6FA/607, and PED 2014/68/EU.

Technical Specifications

  • Standards: API 6D, API 6A (PSL 1-4, PR1/PR2/PR2F)

  • Sizes: 2" to 20" (compact & standard patterns)

  • Pressure Rating: ASME Class 150–2500

  • Fire-Safe: API 6FA / ISO 10497 certified

  • Testing: Hydrostatic, fugitive emissions, and fire testing

Why Choose Velan Valves?

As a trusted Velan Valve Distributor and Stockist, we guarantee: - Fast Delivery – Ready stock for urgent project needs. - Global Certifications – Full compliance with API, ISO, and PED standards. - Custom Solutions – Specialized trim, materials, and actuation options.

Seal presisi tinggi, meminimalisir kebocoran dalam sistem perpipaan.
Material tahan karat dan korosi, cocok untuk lingkungan industri berat.
Mudah diintegrasikan dengan aktuator elektrik maupun pneumatik.

Axial No-Slam Check Valve (NSC-NSZ-NFC-NFZ-SSC-SSZ-SFC-SFZ series) – Velan

Product Details
Spec Detail
Size Range NPS 2 – 56 (DN 50-1400) NPS 1.13/16- 21.1/4 (DN 46-540)
Pressure Class ASME 150 – ASME 2500 API 5000-API 15000
Standard Connections Flanged (RF, RTJ) as per B16.5 &B16.47, Butt Welded as per B16.25, Hub connection, 6B, 6BX as per API 6A
Series NSC-NSZ-NFC-NFZ-SSC-SSZ-SFC-SFZ
Valve design Based on API 6D and customer requirements based on API 6A and customer requirements
Temperature range -150 to 662°F (-101 to 350°C)
Face-to-face As per API 6D standard/As per API 6A standard
End connections RF, RTJ as per B16.5 &B16.47 BW, Butt Welded as per B16.25
Hub connection
6B, 6BX as per API6A
Body design Cast one-piece / bolted two pieces for size >20 inch.
Forged bolted one-piece/ three-piece
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