Why VALSTEER Forged Steel Gate Valve?
Compact, high-pressure isolation valves engineered for critical steam and process duty.
Forged Body Integrity
Forged construction in ASTM A105, LF2, F304L, F316L and alloy grades F11, F22, F5, F9 and F91 delivers high mechanical strength, low porosity and resistance to thermal and pressure cycling.
Reliable Linear Shut-Off
Rising-stem, outside screw and yoke design with a guided wedge ensures consistent tight shut-off and low pressure drop on lines that stay mostly open or closed.
Optimised for High Temperature and Pressure
Carbon, stainless and alloy steel bodies with suitable trims are configured for high-pressure steam, high-temperature process lines and power plant conditions.
Versatile Trim Options
Trim combinations in SS410, SS304 and SS316 are chosen based on media, temperature and project standards to balance erosion resistance, corrosion resistance and cost.
End Connections to Match Piping
Socket weld, threaded and butt-weld ends are offered to align with existing high-pressure piping specifications, especially in boiler houses and compact skid layouts.
Project-Grade Documentation
Supplied with EN 10204 3.1 material certificates, pressure test reports, QAP/ITP and full TPI support to meet project, consultant and audit requirements.
Forged Steel Gate Valve Range
Select the pressure class and material combination that fits your design.
Class 800 Forged Steel Gate Valve
Standard choice for high-pressure isolation in small-bore steam and process lines.
Applications
- Boiler feed and auxiliary steam lines
- High-pressure condensate return
- General process and utility piping in refineries and chemical plants
Best For
- Small-bore isolation where compact face-to-face is critical
- Replacement of existing Class 800 forged gate valves
Class 1500 Forged Steel Gate Valve
High-pressure forged gate valves for demanding hydrocarbon and power services.
Applications
- High-pressure process and transfer lines
- Pump and compressor isolation in refineries and petrochemical units
- Power plant high-energy piping requiring secure shut-off
Best For
- High differential pressure isolation with infrequent operation
- Locations where valve failure would cause major production loss
Class 2500 Forged Steel Gate Valve
Extra-high-pressure gate valves for specialised units, power plants and engineered packages.
Applications
- Very high-pressure steam and process lines
- Critical high-temperature services in power and petrochemical plants
- High-pressure test loops and injection systems
Best For
- Maximum pressure capability in small-bore piping
- Services requiring high safety margins and proven forged integrity
Material / Temperature Options: Carbon, Stainless and Alloy Steel Options
Forged carbon, low-temperature, stainless and alloy steels configured for your pressure–temperature envelope.
Applications
- A105 for standard high-pressure, high-temperature service
- LF2 for low-temperature duties on critical lines
- F304L / F316L where corrosion resistance is required
- F11, F22, F5, F9, F91 for high-temperature, high-pressure power and process applications
Best For
- Aligning valve materials with piping class and design code
- Achieving long service life with minimal unplanned shutdowns
Technical Specifications
Core specifications for VALSTEER Forged Steel Gate Valves.
| Specification | Details |
|---|---|
|
SIZE RANGE |
½″ to 2″ (larger sizes on special request and subject to design) |
|
PRESSURE CLASS |
ASME Class 800, 1500, 2500 |
|
BODY MATERIAL |
ASTM A105 forged carbon steel; ASTM A350 LF2 low-temperature carbon steel; ASTM A182 F304L / F316L forged stainless steel; ASTM A182 F11, F22, F5, F9, F91 alloy steels |
|
TRIM OPTIONS |
SS410, SS304, SS316 trims selected based on media, temperature and project standard |
|
TYPE |
Forged steel, outside screw and yoke (OS&Y), rising-stem gate valve with bolted bonnet |
|
END CONNECTIONS |
Socket weld (SW) and threaded (NPT / BSPT) as standard; butt-weld (BW) ends available for selected classes and sizes |
|
OPERATION |
Handwheel-operated as standard; gear operator or actuator-ready design on request |
|
SEAT DESIGN |
Renewable or integral seats depending on material and design; hard-facing available for severe service |
|
DESIGN STANDARDS |
ASME B16.34, API 602 for compact forged gate valves; face-to-face as per manufacturer’s standard / applicable norms |
|
TESTING |
Hydrostatic body and seat testing as per API 598; additional NDT, PMI, hardness and special tests provided when specified |
|
OPERATING TEMPERATURE |
As per selected material combination; detailed pressure–temperature ratings provided in technical datasheet |
|
MEDIA |
Steam, condensate, hydrocarbons, gases, high-pressure water and process fluids compatible with selected MOC and trim |
|
DOCUMENTATION |
EN 10204 3.1 material certificates, test reports, QAP/ITP and third-party inspection support on request |
Operation & Automation Options
Handwheel Operation
Standard rising-stem handwheel drive for straightforward manual isolation on small-bore lines.
Pneumatic Actuation (on request)
Pneumatic linear or quarter-turn actuator packages (through gearbox) for remote open/close with integration to plant air and control systems.
Manual Gear Operator
Gear-operated handwheel for higher torque requirements, easier operation and improved control on higher-pressure or less accessible valves.
Electric Actuation (on request)
Electric actuators with position indication and control options where electrical power is available and remote operation is required.
Body and Trim Material Combinations
Forged body and trim selections engineered to match pressure, temperature and media.
| BODY / TRIM COMBINATION | BODY GRADES | TRIM OPTIONS (SS410 / SS304 / SS316) | TYPICAL USE |
|---|---|---|---|
|
Carbon Steel – Standard Service |
ASTM A105 |
SS410 or SS304 trim |
High-pressure steam, condensate and hydrocarbon lines at standard design temperatures |
|
Low-Temperature Carbon Steel |
ASTM A350 LF2 |
SS410 or SS304 trim |
Low-temperature service where impact-tested materials are required by design code |
|
Stainless Steel 304L |
ASTM A182 F304L |
SS304 or SS316 trim |
Corrosive high-pressure duties with moderate chlorides and general process corrosion |
|
Stainless Steel 316L |
ASTM A182 F316L |
SS316 trim |
High-pressure lines in chloride-rich, marine or mildly aggressive chemical environments |
|
Alloy Steel F11 / F22 |
ASTM A182 F11, F22 |
SS410 or SS304 trim |
Very high-temperature, creep-resistant services in advanced power and petrochemical units |
|
High-Alloy F5 / F9 / F91 |
ASTM A182 F5, F9, F91 |
SS410 or SS304 trim |
Very high-temperature, creep-resistant services in advanced power and petrochemical units |
Applications & Industries
Forged gate valves for reliable small-bore isolation in high-pressure, high-temperature service.
Power Generation & Boiler Plants
High-pressure steam, boiler feed, superheater and reheater lines requiring reliable linear shut-off.
Refineries & Petrochemical Units
Process and utility piping, high-pressure hydrocarbon service and small-bore isolation around critical equipment.
Oil & Gas Facilities
Gathering stations, processing skids, compressor and pump isolation where forged gate valves are specified.
Chemical & Fertiliser Plants
High-pressure process streams, reactor feed lines and critical isolation points on compact pipe racks.
Industrial Utilities
High-pressure air, nitrogen, condensate and process water lines in plants and OEM packages.
Turbine & Heater Islands
Auxiliary steam systems, drains and vents around turbines, heaters and heat exchangers.
Forged Steel Gate Valve FAQs
Forged gate valves offer higher mechanical strength and improved integrity in small-bore, high-pressure applications. They are particularly suited to Class 800 and above service, boiler rooms and high-energy piping where compact dimensions and reliable shut-off are critical.
Standard body materials include ASTM A105, ASTM A350 LF2, F304L, F316L and high-temperature alloy steels F11, F22, F5, F9 and F91. This range covers standard, low-temperature and high-temperature duties required by modern power and process plants.
We provide trims in SS410, SS304 and SS316, selected based on service conditions and project specifications to ensure appropriate resistance to erosion and corrosion.
Yes. VALSTEER forged steel gate valves can be supplied with gear operators, and configured for pneumatic or electric actuators where remote operation or interlocking with plant control systems is needed.
Each valve is hydrostatically and seat tested as per API 598. On request, we provide EN 10204 3.1 material certificates, detailed test reports, QAP/ITP, and can support third-party inspection by recognised agencies.