Detailed specifications for each sub-type. All dimensions and ratings are sourced from the product description supplied by ZC Steel Pipe.
Ball Valves
Cast Steel Floating Ball Valve
Single-body and double-body floating ball design per ISO 17292, API 608, BS 5351. Ball supported by two seats; medium pressure forces the ball onto the outlet seat for sealing.
NPS: ½″ – 6″ (DN15–DN150) Pressure: Class 150–300 (PN16–PN40) Face: RF, BW, THR
Forged Steel Floating Ball Valve
Forged body for high-integrity small-bore service. Ball generates sealing force from medium pressure at outlet seat. Five end connection options including socket weld.
NPS: ½″ – 6″ (DN15–DN150) Pressure: Class 150–2500 (PN16–PN420) Face: RF, RTJ, BW, THR, SW
Side Entry Trunnion Ball Valve
Trunnion-mounted ball with movable seat rings that create sealing force from line pressure. Suitable for large bore and high-pressure service; available with multiple actuator types.
NPS: 2″ – 60″ (DN50–DN1500) Pressure: Class 150–2500 (PN16–PN420) Face: RF, RTJ, BW
Top Entry Trunnion Ball Valve
Integrated one-piece body; internals accessed from the top for in-line maintenance without removing the valve from the pipeline. Reduces maintenance downtime on critical service.
NPS: 2″ – 60″ (DN50–DN1500) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Fully Welded Ball Valve
Forged body with welded closure — no bolted bonnet or gaskets, eliminating potential body leakage paths. Suitable for buried pipeline and underground service.
NPS: 2″ – 60″ (DN50–DN1500) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Metal Seat Ball Valve
Metal-to-metal seat for high-temperature service up to +560°C where soft-seat materials cannot be used. Available in carbon, stainless, alloy, and duplex steel.
NPS: 2″ – 32″ (DN50–DN800) Pressure: Class 150–2500 Face: RF, RTJ, BW
Cryogenic Ball Valve
Extended bonnet for cryogenic service down to -196°C. Floating and trunnion-mounted, side and top entry configurations. For LNG, liquid nitrogen, and low-temperature hydrocarbon service.
NPS: ½″ – 32″ (DN15–DN800) Pressure: Class 150–1500 Face: RF, RTJ, BW
Gate Valves
API 6D Slab Gate Valve
Full-bore slab gate for mainline pipeline isolation per API 6D. Metal-seated; suitable for bi-directional flow and pigging operations on transmission pipelines.
NPS: 2″ – 60″ (DN50–DN1500) Pressure: Class 150–2500 Face: RF, RTJ, BW
API 6D Expanding Gate Valve
Expanding gate mechanism for positive double-block-and-bleed isolation. Used in pig launchers, receivers, and metering stations where cavity-free isolation is required.
NPS: 2″ – 36″ (DN50–DN900) Pressure: Class 150–2500 Face: RF, RTJ, BW
API 600 Gate Valve
Bolted bonnet wedge gate valve for refinery and petrochemical service per API 600. Available in carbon, stainless, and alloy steel body and trim combinations for a wide temperature range.
NPS: ½″ – 60″ (DN15–DN1500) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Pressure Seal Gate Valve
Pressure-seal bonnet for high-pressure, high-temperature service where conventional bolted bonnet sealing is impractical. Bonnet seal tightens automatically with increasing line pressure.
NPS: ½″ – 60″ (DN15–DN1500) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Cryogenic Gate Valve
Extended bonnet gate valve for service down to -196°C. For LNG, ethylene, and low-temperature refinery process service.
NPS: ½″ – 32″ (DN15–DN800) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Globe Valves
Globe Valve
Straight-pattern globe valve for throttling and flow regulation. Available in bolted-bonnet and pressure-seal configurations across the full Class 150–2500 range.
NPS: ½″ – 24″ (DN15–DN600) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Pressure Seal Globe Valve
Pressure-seal bonnet for high-pressure throttling applications. Working temperature up to +560°C in Class 2500 service.
NPS: ½″ – 24″ (DN15–DN600) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Cryogenic Globe Valve
Extended bonnet for cryogenic throttling service down to -196°C. For LNG, liquid nitrogen, and low-temperature hydrocarbon streams.
NPS: ½″ – 24″ (DN15–DN600) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Slurry Globe Valve
Three-way, angle, and Y-pattern configurations for abrasive slurry media in chemical fertiliser, mining, metallurgy, and aluminium oxide industries.
NPS: ½″ – 24″ (DN15–DN600) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Check Valves
Swing Check Valve
Swing disc check valve for pipeline and process service. Low pressure drop; full-bore disc. Suitable for horizontal and vertical (upward flow) installation.
NPS: ½″ – 60″ (DN15–DN1500) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Lift Check Valve
Piston-type lift check valve for horizontal installation. Better sealing than swing type for high-frequency pressure fluctuations; suited to high-pressure, high-temperature service.
NPS: ½″ – 16″ (DN15–DN400) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Wafer Dual Disc Check Valve
Compact wafer body with spring-loaded split disc for minimal reverse-flow volume. Lightweight; fits between flanges without additional bolting. Common in water treatment and HVAC.
NPS: ½″ – 48″ (DN15–DN1200) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ
Nozzle Check Valve
Silent, axial-flow nozzle check valve with short disc stroke and fast closure to minimise water hammer. For pump discharge and compressor outlet service.
NPS: ½″ – 24″ (DN15–DN600) Pressure: Class 150–600 (PN10–PN100) Face: RF, RTJ
Pressure Seal Check Valve
Pressure-seal bonnet check valve for Class 900–2500 service. Bonnet sealed by internal fluid pressure; suitable for high-temperature, high-pressure applications.
NPS: ½″ – 24″ (DN15–DN600) Pressure: Class 150–2500 (PN10–PN420) Face: RF, RTJ, BW
Butterfly Valves
Centric Butterfly Valve
Single offset disc; low-pressure drop. Suitable for water, slurry, and general utility service where full bore is not required.
NPS: 2″ – 24″ (DN50–DN600) Pressure: Class 150–300 (PN10–PN50) Face: RF, RTJ
Double-Eccentric Butterfly Valve
Double offset disc reduces seat wear significantly. Suitable for high-cycle service in water, gas, and moderate process applications. Very large diameters available.
NPS: 2″ – 120″ (DN50–DN3000) Pressure: Class 150–600 (PN10–PN100) Face: RF, RTJ
Triple-Eccentric Butterfly Valve
Triple offset disc with metal-to-metal seating provides bubble-tight shutoff with bi-directional sealing and near-zero seat wear. Suitable for gas, hydrocarbons, and high-temperature service.
NPS: 2″ – 180″ (DN50–DN4500) Pressure: Class 150–600 (PN10–PN100) Face: RF, RTJ
All dimensions and pressure ratings are sourced directly from the ZC Steel Pipe product description. Contact us to confirm availability for specific sub-types, sizes, or pressure classes.
