S.H PPH Flanged True Union Ball Valve | S5 1.25MPa Chemical-Grade Double Union Bolt-Face Valve (1/2" - 4")

Xieyu S.H Premium PPH Flanged True Union Ball Valves (S5 / 1.25MPa)

Regulate, shut off, and maintain your industrial, chemical, and fluid-treatment pipeline systems securely with our premium Xieyu S.H PPH flanged true union ball valves, available at Atradesen.com. Manufactured by Xieyu (S.H / HIEH), a premier global leader in high-performance thermoplastic flow control, these flanged, double union valves are engineered to withstand continuous operating pressures up to 1.25 MPa (181 PSI) and temperatures from -20°C to 100°C.

Featuring standard parallel bolt circle flange faces and standard double union locking nuts, this flanged valve series is highly compatible with industrial chemical pipelines, acid pickling loops, electroplating lines, waste gas scrubbers, waste acid recovery, and wastewater treatment.

Three-in-One Integrated Design for Easy Inline Maintenance

In complex industrial pipeline manifolds, standard flanged valves require cutting and re-welding if internal components fail or scale. Our specialized Flanged True Union valve integrates a high-precision double union ball valve with two heavy-duty flange adapters on both ends. This design allows you to bolt the valve firmly into standard flanged pipeline runs (protecting against high mechanical torsion) while retaining the ability to quickly unscrew the dual union nuts. You can slide out the central valve body for cleaning, ball seat inspection, or gasket replacement without disturbing the main piping or equipment connections.

Heavy-Duty Chemical-Grade Material Qualities

Molded from high-purity Homopolymer Polypropylene, these S5-rated valves offer superior chemical resistance to highly corrosive media, pickling acids, waste acids, alkaline wash solutions, and industrial wastewater. PPH is also non-toxic and odorless, making these flanged valves completely safe for drinking water pipelines, pharmaceutical loops, and food processing lines. The integrated flange faces feature reinforced gussets to distribute bolting stress evenly, preventing warping and securing zero-leakage sealing.

⚠️ Sizing & Flange Compatibility Guide

The nominal sizing corresponds to the matching pipe outer diameter (OD), standard DN rating, and imperial thread equivalents:

• 1/2" - DN15 (20mm): Fits standard 1/2-inch piping runs.
• 3/4" - DN20 (25mm): Fits standard 3/4-inch piping runs.
• 1" - DN25 (32mm): Fits standard 1-inch piping runs.
• 1-1/4" - DN32 (40mm): Fits standard 1-1/4 inch piping runs.
• 1-1/2" - DN40 (50mm): Fits standard 1-1/2 inch piping runs.
• 2" - DN50 (63mm): Fits standard 2-inch piping lines.
• 2-1/2" - DN65 (75mm): Fits standard 2.5-inch piping lines.
• 3" - DN80 (90mm): Fits standard 3-inch piping lines.
• 4" - DN100 (110mm): Fits standard 4-inch heavy-duty mainlines.
• Note: Standard flanged bolt-face installation. Flange gaskets and bolt fasteners must be prepared separately for connection.

Technical Specifications

Frequently Asked Questions (FAQ)

Q: What is the main operational benefit of a Flanged True Union Ball Valve?

A: When connected to heavy industrial equipment (like acid dosing pumps or chemical reservoirs), pipelines experience immense vibration and axial shear forces. Connecting with standard hot-melt fusion can easily stress the piping. Bolting with integrated flanges absorbs these physical stresses completely, while the dual union nuts allow you to quickly slide out the core valve body for maintenance without cutting or replacing the rigid pipe runs.

Q: Can this flanged PPH valve withstand freezing winter temperatures?

A: Yes. High-grade PPH has excellent low-temperature impact strength and can withstand freezing down to -20°C (-4°F). They are highly suitable for outdoor chemical pipelines, wastewater processing manifolds, and unheated water towers.