Our Services

Valve Types Tested

Diverse Range of Valves Tested and Validated at the Hawa Valve Technology Centre
• Butterfly Valves – Wafer, Lug, Double/Triple Offset.
• Plug Valves – Lubricated and Pressure Balanced, Sleeved, Lift & Turn, Double Block & Bleed.
• Ball Valves – Floating, Trunnion Mounted, Metal Seated, Top Entry and Side Entry.
• Rising Stem Ball Valves (RSBVs).
• Safety Valves and Relief Valves.
• Modular and Integral DBB (Double Block & Bleed) Valves – Ball/Needle/Ball, Ball/Ball/Ball, etc.
• Gate Valves – Pressure Seal, Wedge Type.
• Globe Valves – Straight, Angle, Y-pattern.
• Check Valves – Swing, Dual Plate, Non-Slam, Piston.
• Control Valves – SSV, PRV, Piston, Pneumatic, Electric, Smart Positioned.
• Custom Assemblies – Manual, Gear Operated, Gas over Oil, Pneumatic & Electric Actuated.

Standards & Norms

At the Hawa Valve Technology Centre, we adhere to the most stringent international testing standards to ensure all valve types manual, actuated and control are validated for global applications. These standards govern material integrity, dimensional accuracy, pressure testing, safety and operational performance.

API Standards:

• API 6A, 6D, 600, 609, 6DSS.

• API 598: Ensures pressure testing and seat leakage verification for all valves.

ISO Standards:

• ISO 5208 & 10497: Pressure and fire test procedures for industrial valves.

ASME & BS Standards:

• ASME B16.34, BS 6364

• CE / PED, • ATEX, • SIL, • GOST

Standards & Norms

Cryogenic Testing evaluates the valve’s ability to function reliably at ultra-low temperatures, where materials tend to contract and sealing performance is critical. It is a vital validation step for valves used in liquefied gases like LNG and other cryogenic service valves.

Purpose: Ensures valve performance and sealing integrity at extremely low temperatures.

Medium: Liquid Nitrogen

Testing Size Range: ½" to 56" valves

Pressure Class Coverage: ASME Class 150# to 2500#, PN10 to PN450, API 6A up to 20,000 PSI

Temperature: Upto to -196°C

Standards: BS 6364, GOST

Application: LNG and other Cryogenic Services.

In-House Capability: Fully equipped and insulated Cryogenic Testing Chambers with vacuum insulation and temperature sensors for accurate monitoring under simulated service conditions.

Hydrostatic Testing

Hydrostatic Testing verifies the structural integrity of valves under high internal pressure. It is a standard test for body and seat tightness in all valve types, ensuring pressure containment without deformation or leakage.

Purpose: Confirms body strength and sealing reliability

Medium: Water or Designated Liquids (Glycol, Kerosene etc.)

Testing Size Range: ½" to 56"

Pressure Class Coverage: ASME Class 150# to 2500#, PN10 to PN450, API 6A up to 20,000 PSI

Standards: API 598, ASME B16.34, GOST

In-House Capability: Dedicated hydrostatic benches and calibrated pressure gauges for high-accuracy measurements.

Pneumatic Testing

Pneumatic testing is a sensitive leak detection process using air or nitrogen at low pressure to ensure bubble-tight sealing in soft-seated valves.

Purpose: Detects minute leaks in valve seats and body

Medium: Air/Nitrogen

Testing Size Range: ½" to 56"

Pressure Class Coverage: ASME Class 150# to 2500#, PN10 to PN450, API 6A up to 20,000 PSI

Standards: API 598, GOST

In-House Capability: Safe, explosion-proof pneumatic test benches with calibrated leak measurement system

Elevated Temperature Testing

Elevated temperature testing evaluates a valve’s thermal expansion behavior, sealing performance and structural stability at high temperatures.

Purpose: Validates valve performance under elevated temperature service.

Equipment: Electric panel with coil.

Temperature Range: Up to 600°C

Testing Size Range: ½" to 56"

Pressure Class Coverage: ASME Class 150# to 2500#, PN10 to PN450, API 6A up to 20,000 PSI

Typical Applications: Steam, thermic fluid valves

Standards: ISO 10497, GOST

In-House Capability: Controlled heating environments with precise temperature monitoring.

Water Leak Testing

Water leak testing identifies visible leaks in valves under low pressure. It is ideal for evaluating sealing performance using immersion or bubble testing techniques.

Purpose: Detects external leakage visually

Method: Submersion or bubble test under pressure

Testing Size Range: ½" to 56"

Pressure Class Coverage: ASME Class 150# to 2500#, PN10 to PN450, API 6A up to 20,000 PSI

Standards: Factory specific procedures

In-House Capability: Water tanks and test loops with visual inspection zones.

Fugitive Emission Testing (FET)

Fugitive Emission Testing (FET) is a critical validation method to ensure valves meet environmental regulations by minimizing unintentional leakage of volatile organic compounds. It is especially important for valves used in chemical, petrochemical, and refinery applications where emissions control is paramount.

Purpose: Verifies low emission performance to meet global environmental standards

Testing Medium: Helium

Testing Size Range: ½" to 56"

Applicable Pressure Classes: ASME Class 150# to 2500#, PN10 to PN450, API 6A up to 20,000 PSI

Test Method: Sniffing, bagging and vacuum chamber techniques.

Applicable Standards: ISO 15848-1, ISO 15848-2

In-House Capability: Certified emission test rig with calibrated helium leak detectors and automated data logging for repeatability and traceability