INDUSTRIAL VALVES

Nantech supplies a wide range of industrial valves for precise flow control, reliable isolation and overpressure protection in demanding process environments. Manufactured to API 6D, API 6A, ASME, BS, ISO and DIN standards, our valves deliver tight shut-off, low operating torque and long service life.

Valve Types:

Gate Valves: bolted bonnet, pressure seal and knife gate
Ball Valves: floating and trunnion-mounted, soft or metal seated
Globe Valves: straight pattern, Y-pattern and needle
Check Valves: swing, dual-plate wafer, piston and tilting disc
Butterfly Valves: concentric, double-offset and triple-offset
Plug Valves: lubricated and non-lubricated sleeve type
Safety & Pressure Relief Valves (PSV / PRV): spring-loaded and pilot-operated

Upstream & Severe Service Valves:

Double Block and Bleed (DBB) Valves
Double Isolation and Bleed (DIB-1 and DIB-2) Valves
API 6A Gate Valves (slab and expanding gate)
Choke Valves (adjustable and positive, tungsten carbide trim)
Christmas Tree Valves (master, wing and swab)

Pressure Ratings:

ASME Class 150, 300, 400, 600, 900, 1500 and 2500
API 6A: 2,000, 3,000, 5,000, 10,000, 15,000 and 20,000 PSI

Operation:

Manual (handwheel and gear operated)
Automated with pneumatic, hydraulic or electric actuators

Testing & Documentation:

Hydrostatic, pneumatic and fugitive emission testing to API 598 and API 6D
Sour service to NACE MR0175 / ISO 15156
EN 10204 3.1 Mill Test Certificates with full material traceability

Industries:

Oil & Gas (Upstream, Midstream & Downstream)
Power Generation
Chemical & Petrochemical
Water Treatment & Desalination

Materials & Grades:

Cast Body Materials

Carbon Steel: ASTM A216 WCB, WCC
Low-Temperature Carbon Steel: ASTM A352 LCB, LCC, LC1, LC2, LC3
Alloy Steel: ASTM A217 WC1, WC6, WC9, C5, C12, C12A
Stainless Steel: ASTM A351 CF8, CF8M, CF3, CF3M, CF8C, CH20, CK20
Duplex: ASTM A995 / A890 Grade 1A, 2A, 3A, 4A, 5A
Super Duplex: ASTM A995 / A890 Grade 6A, CD3MWCuN
Nickel Alloys: ASTM A494 M35-1 (Monel), CY40 (Inconel 600), CW6MC (Inconel 625), CU5MCuC (Incoloy 825), CW12MW (Hastelloy C276)

Forged Body Materials (small bore & high pressure)

Carbon Steel: ASTM A105 / ASME SA105
Low-Temperature Carbon Steel: ASTM A350 LF1, LF2, LF3, LF6, LF9
Alloy Steel: ASTM A182 F1, F2, F5, F5a, F9, F11, F12, F21, F22, F91, F92
Stainless Steel: ASTM A182 F304, F304L, F304H, F316, F316L, F316H, F316Ti, F321, F321H, F347, F347H, F904L, UNS S31254 (6Mo)
Duplex: ASTM A182 F51, F60
Super Duplex: ASTM A182 F53, F55
Nickel Alloys: ASTM B564 Monel 400, Inconel 600 & 625, Incoloy 800 & 825, Hastelloy C276
Titanium: ASTM B381 Grade F-1, F-2, F-5

API 6A Material Classes (Wellhead & Christmas Tree)

AA / BB / CC: General service (carbon/low-alloy steel, stainless trim, full stainless)
DD / EE / FF: Sour service to NACE MR0175
HH: Severe sour service (CRA / Inconel 625 clad)

Interested?