Handwheel Operated Upstream Gate Valve

SHUANGLIN VALVE Brass Expanding Gate Valve – Handwheel Operated Telescopic Gate Valve DN15×20 / DN20×20 / DN20×25

The SHUANGLIN VALVE Brass Expanding Gate Valve is a specialized pipeline control device designed to accommodate thermal expansion and contraction in piping systems. Unlike standard gate valves, this valve features an expanding/telescopic body that allows for length adjustment during installation, compensating for pipe dimensional changes caused by temperature fluctuations. This innovative design reduces pipeline stress, prevents joint leakage, and simplifies installation in systems where precise pipe alignment is challenging.

Constructed from high-quality forged brass, SHUANGLIN VALVE expanding gate valves offer excellent corrosion resistance, high strength, and reliable sealing performance. The non-rising stem design allows installation in space-constrained areas. The handwheel provides smooth, low-torque operation with clear position indication. Available in DN15×20, DN20×20, and DN20×25 transition sizes with standard threaded connections, these valves are rated to PN16 (1.6MPa) with a working temperature range of -20°C to 120°C, suitable for water, oil, gas, and other non-corrosive fluids. SHUANGLIN VALVE products are manufactured under strict quality control and comply with ISO9001 and CE standards.

Key Features:

• Telescopic / Expanding Body: Adjustable length compensates for thermal expansion and contraction, reducing pipeline stress

• Handwheel Operated: Multi-turn operation for smooth, precise flow control

• Premium Forged Brass Construction: Corrosion-resistant, durable, and long-lasting

• Non-Rising Stem: Space-saving design for confined installations

• Full Port Design: Minimizes pressure drop and maximizes flow capacity

• Available Sizes: DN15×20, DN20×20, DN20×25 (transition sizes)

• Pressure Rating: PN16 (1.6MPa / 232 PSI)

• Temperature Range: -20°C to 120°C

• Certifications: ISO9001, CE

Applications:

• Hot water heating systems requiring thermal expansion compensation

• Residential and commercial plumbing with temperature fluctuations

• HVAC chilled and hot water circuits

• Industrial piping where pipe alignment is challenging

• Retrofit projects requiring flexible installation

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