Industrial Gate Valve Manufacturing
Trusted by Global EPC Contractors & System Integrators

Our gate valves are manufactured to ASME B16.34 standards with pressure ratings from PN10 to Class 2500, supporting working pressures up to 42 MPa (6100 PSI). Temperature capability spans from cryogenic LNG service at -196°C (-320°F) to high-temperature steam applications up to 620°C (1148°F). Special alloy configurations extend temperature capability to 650°C for supercritical applications, with metal-to-metal sealing surfaces maintaining tight shutoff throughout the operating range.

Wedge gate designs utilize elastic wedge angle compensation for thermal expansion while ensuring positive sealing contact with both seat surfaces. Parallel gate configurations rely on differential pressure self-energizing mechanisms to reduce operating torque, particularly effective in large diameter high-pressure applications. Both designs feature Stellite 6 or tungsten carbide hardfacing on gate and seat surfaces to resist erosion from abrasive media and high-velocity flow conditions.

Gate valves provide full-bore flow path when fully open, with the gate completely withdrawn from the flow stream. This creates pressure drop equivalent to straight pipe of the same diameter, minimizing energy losses and reducing pump or compressor power requirements. The linear gate motion eliminates flow turbulence and cavitation typically associated with throttling valve designs, making gate valves ideal for pipeline isolation and high-velocity applications.

Our gate valves meet or exceed API 598 leakage requirements for metal-seated valves, with typical shutoff performance ≤ 0.08 ml·min⁻¹·in⁻¹ of seat diameter. Bi-directional sealing capability ensures reliable isolation regardless of pressure differential direction. Back-seat design enables stem packing replacement under pressure, while fugitive emission testing per ISO 15848-1 confirms long-term environmental compliance for volatile service applications.

Manufacturing complies with API 600, ISO 10434, and EN 1984 design standards, with pressure-temperature ratings per ASME B16.34. API 6FA and ISO 10497 fire testing certification is available for critical service applications. Pipeline service configurations meet API 6D requirements, while CE/PED Module H compliance ensures European market acceptance. SIL 3 functional safety assessment is completed for actuated assemblies in safety instrumented systems.

Standard configurations in WCB, LCB, and CF8M materials typically deliver within 15-25 business days for sizes DN50-DN400. Custom specifications or exotic alloys such as Inconel 625 require 6-10 weeks depending on material procurement and special testing requirements. Emergency delivery service provides 72-hour shipment for critical applications, subject to size and material availability. Consignment inventory programs eliminate lead times for frequently specified spare valves.

Comprehensive quality control includes 100% hydrostatic testing at 1.5x working pressure, dimensional inspection per engineering drawings, and material verification through PMI analysis. Standard warranty covers 12 months from commissioning or 18 months from shipment, whichever occurs first. Manufacturing defects are resolved through expedited replacement at no charge. Extended warranty programs and performance guarantees are available for critical long-term pipeline applications.

Technical engineering team provides comprehensive application analysis including flow calculations, material compatibility assessment, and actuator sizing recommendations. Process condition reviews result in written engineering reports with supporting calculations and material selection rationale. Remote technical support continues throughout valve service life, with training programs available for maintenance personnel on proper operation and troubleshooting procedures.

Complete material traceability package includes mill test certificates, chemical and mechanical test reports, hydrostatic test results, and dimensional inspection records. API 6D material certificates are provided for pipeline applications, with EN 10204 3.2 certification standard for European projects. Custom test protocols, third-party inspection, and witness testing can be arranged to meet specific project quality requirements and client specifications.

Volume pricing applies to orders starting at 10 pieces of identical specification, with additional discounts for larger quantities and multi-year framework agreements. Project-specific pricing considers total package value including actuators and accessories. Long-term partnership programs provide preferential pricing, priority scheduling, and dedicated technical support for qualified customers with consistent annual volume commitments exceeding 200 valves.