316/316L Stainless Steel Globe Valves

Superior Flow Regulation: Disc-to-seat ring design provides excellent throttling capability for flow control and pressure regulation applications.

Corrosion Resistance: Excellent resistance to pitting and crevice corrosion in chloride-containing environments, seawater, and aggressive chemical media, thanks to 2–3% molybdenum content.

Bidirectional Shut-Off: Provides reliable bubble-tight shut-off in one direction (flow under disc recommended for high pressure).

Multiple Disc Types: Available with flat disc, composition disc, plug disc, or needle disc for different throttling requirements.

Rising Stem Design: External stem threads provide visual indication of valve position and prevent stem thread contamination.

Backseating Capability: Full backseating allows stem seal replacement under pressure when valve is fully open.

Multiple End Connections: Flanged (ASME B16.5), threaded (NPT/BSP), socket weld (SW), and butt weld (BW).

Full Range of Types: Bolted bonnet (Class 150-600), pressure seal bonnet (Class 600-2500), bellows seal (Class 150-300), and Y-pattern globe valves.

Pressure Ratings: Available in Class 150, 300, 600, 900, 1500, and 2500 (PN16 to PN420).

Temperature Range: Suitable for -196°C to 550°C (-320°F to 1022°F) depending on trim material.

International Certifications: Valves can be certified by ABS, BV, DNV, LR, GL, RINA, CCS, KR, and NK, and comply with API 623, ASME B16.34, and NACE MR0175 standards.

Raw Material Selection: High-quality 316/316L stainless steel (CF8M cast or forged) from certified mills with certified chemical composition and traceability.

Casting/Forging: Valve body and bonnet cast or forged to shape, then heat treated (solution annealing at 1040–1080°C followed by water quenching).

Machining: CNC lathes and machining centers produce precise dimensions – seat ring cavity, disc guide, stem bore, flange faces, and bolt holes.

Seat Hardfacing (if specified): Stellite overlay on seat ring for high temperature or erosive service.

Stem Machining: Stem threads, backseat, and packing groove machining.

Disc (Plug) Machining: Disc machined to precise dimensions for proper seating.

Assembly: Body, seat ring, disc, stem, bonnet, packing, and gasket assembly.

Testing: Hydrostatic shell test, high-pressure seat test, low-pressure seat test.

Marking: Laser engraved with size, pressure, material, heat number, API 623, and ratings.

Painting/Coating: External coating (epoxy or blue PTFE) for corrosion protection.

Pressure Testing: 100% hydrostatic shell test (1.5× rated pressure), high-pressure seat test (1.1× rated pressure), low-pressure air seat test (80 psi, bubble-tight).

Material Verification: PMI (Positive Material Identification) for body, bonnet, disc, stem.

Dimensional Inspection: Face-to-face, flange dimensions, seat ring alignment using calibrated instruments.

Leakage Testing: API 598 / ISO 5208 – Rate A (zero detectable leakage for soft seat).

Hardness Testing: Seat ring and disc hardness verification.

NACE Compliance: Hardness testing (≤22 HRC for 316).

Third-Party Inspection: SGS, BV, DNV, LR, TUV on customer request.

Steam Systems: Boiler steam control, steam header isolation, turbine bypass, condensate systems.

Chemical Processing: Reactor flow control, acid transfer regulation, corrosive media throttling.

Boiler Feedwater: Feedwater control valve, pump recirculation, level control.

Cooling Water Systems: Heat exchanger flow regulation, cooling tower bypass.

Marine Engineering: Seawater flow control, ballast system regulation (ABS/BV/DNV/LR certified).

Pharmaceutical: Sterile process flow control, clean steam regulation, WFI systems.

Oil & Gas: Produced water flow control, gas regulation, dump valve service (NACE MR0175).

Power Generation: Feedwater heater level control, extraction steam control.

Water Treatment: Filtration control, chemical injection regulation.

Small valves (≤2″): Individual poly bags in carton boxes.

Medium valves (2.5″–8″): Plywood cases with foam padding.

Large valves (≥10″): Wooden crates with protective wrapping and pallets.

End Protection: Flange protectors for flanged ends; plastic caps for threaded ends.

Womic Steel's Delivery Strengths:

Ready stock: 1/2″–8″ 316/316L globe valves Class 150 flanged – dispatch within 24-48 hours.

Direct cooperation with global shipowners for competitive freight rates.

Complete documentation including MTR, hydrostatic test reports.

1. What is the difference between a globe valve and a gate valve?
Globe valves are designed for throttling and flow regulation. Gate valves are designed for fully open or fully closed (isolation) service. Globe valves have higher pressure drop but better flow control capability.

2. Which direction should a globe valve be installed?
For high pressure applications, install with pressure under the disc (flow direction arrow on body). For low pressure, installation may be either direction. Standard is flow up through the seat.

3. What is the difference between bolted bonnet and pressure seal globe valves?
Bolted bonnet (Class 150-600) uses bolted flange connection. Pressure seal (Class 600-2500) uses body-bonnet pressure sealing that increases sealing force with internal pressure – used for high pressure, high temperature.

4. What is a bellows seal globe valve used for?
Bellows seal globe valves provide zero stem leakage, used for toxic, hazardous, or expensive fluids where environmental protection is required.

5. Y-pattern globe valves vs standard globe valves?

Y-pattern has stem at 45° angle, providing less flow resistance, lower pressure drop, and is better for high pressure drop and frequent cycling applications.

Complete Product Range: Bolted bonnet, pressure seal, bellows seal, Y-pattern, angle, needle – all types available.

Strict Quality Control: API 623, ISO 9001, PED certified.

NACE MR0175 Compliant: Full documentation for sour service applications.

100% Pressure Tested: Hydrostatic shell and seat tests on every valve.

Full Traceability: Heat number on body – traceable to raw material.

Flexible Customization: Special trims, hardfacing, extended stem, locking device, gear operator.

Global Delivery: Exported to over 50 countries.

Tel / WhatsApp:
Victor: +86 15575100681
Jack: +86 18390957568

Website: www.womicstainless.com
E‑mail: info@womicstainless.com

Contact Womic Steel today for a competitive quote on 316/316L stainless steel globe valves. We offer certified quality, API 623 compliant design, NACE MR0175 compliance, fast production lead times, and reliable global delivery.

Stock Examples (Flanged 316L Globe Valves – Class 150 – Bolted Bonnet – Composition Disc):

Stock Examples (Threaded 316 Stainless Steel Globe Valves – 2000 WOG – Needle Disc for Instrumentation):

Related Keywords (Globe Valves):

316 stainless steel globe valve, 316L flanged globe valve Class 150, rising stem globe valve, API 623 globe valve, bolted bonnet globe valve, pressure seal globe valve high pressure, bellows seal globe valve zero leakage, Y-pattern globe valve low pressure drop, angle globe valve for bottom inlet, needle globe valve for instrumentation, stop-check globe valve combination, NACE MR0175 globe valve sour service, CF8M globe valve chemical resistant, steam globe valve throttling, boiler feedwater control globe valve, cooling water regulation globe valve, oxygen globe valve cleaned for oxygen service, hydrogen globe valve high pressure, cryogenic globe valve -196°C LNG, high pressure globe valve Class 2500, composition disc globe valve soft seat, Stellite hardfaced disc globe valve high temperature, globe valve with locking device, gear operated globe valve, pneumatic globe valve for automation, electric globe valve remote control, rising stem indicator globe valve.