Ham-Let – Needle Valves

Screwed Bonnet Needle Valves
(H99 Series)

GENERAL

The H-99 Series offers a general service valve of rugged design and construction. It is available in stainless steel to suit a wide range of services. Capable of with standing high-pressure (10,000 psig max) and high temperature. This valve is typically used in severe environments, high-pressure sampling systems, high-pressure shut-down systems and test stands.

FEATURES

• Blowout-proof stem
• MAWP* up to 10,000 psi (690 bar)
• MAWT** up to 648°C (1200°F)
• End connection size range: 1/4" to 1" or 6mm to 25mm
• Available in 4 body sizes (S, M, L, XL)
• Flow Coefficient (Cv) 0 to 1.5
• Variety of stem types
• Packing bolt for easy panel mounting
• No packing disassembling is required

Integral Bonnet Needle Valves
(H-300U Series)

GENERAL

The H-300U Series is an advanced high-pressure instrumentation needle valve for regulating service. The packing bolt design, featuring easy mounting, provides the best solution for instrumentation panels. This compact valve enables a relatively high level of flow regulation and long-life service. Special stem surface treatment, based on low temperature carbon diffusion, enables higher surface hardness with improved wear resistance, resistance to system contaminants and low operational torque.

Features

• Certified for ISO 15848-1:2006(E)
• Straight and angle pattern
• Stainless steel or brass body construction
• MAWP* 5000 psi (345 bar)
• MAWT** 446°F (230°C)
• Flow coefficient (Cv) 0.09 to 1.8
• Sizes: 1/8" to 3/4" (3mm-12mm)
• Round plastic, round aluminum, and metal bar handles
• Variety of stem types
• Packing bolt for easy panel mounting
• No packing disassembly is required
• Chevron stem packing provides low operation torques
• Belleville washers compensate packing wear
• Special synthetic, anti-seize stem lubricant for resistance to high temperature