Products

Product Overview

The High Temperature & High Pressure Electric Globe Valve (J961H/Y Series) is an elite-tier flow regulation and isolation solution engineered specifically for the most punishing thermal environments. Fully compliant with E101, JB/T 3595, and DL/T 531 power industry standards, this welded-end globe valve is widely installed in thermal power generation, petrochemical processing, and heavy steam distribution networks to manage superheated steam, high-pressure boiler feed water, and non-corrosive media.

Utilizing a highly advanced pressure self-tightening (Pressure Seal) bonnet configuration, the valve utilizes internal system pressure to continuously tighten its joints, entirely eliminating the thermal expansion leakage risks common in traditional bolted bonnets. The flow path is optimized to minimize pressure drop and turbulence, making it highly effective for both absolute leak-free shut-off and precise fluid throttling control. Equipped with a high-torque smart electric actuator, it delivers fast, dependable remote operation integrated directly into your plant’s DCS automation network.

Key Features & Technical Advantages

1. Severe-Service Metallurgy & Alloys

   Forged and cast variations are available in premium specialty grades, including Chromium-Molybdenum Steel and Chromium-Molybdenum-Vanadium Steel. These high-end alloys offer supreme tensile strength and creep resistance under sustained thermal loading up to 540°C.

2. Supercritical Pressure Capabilities

   Engineered to endure extremely high pressure ranges from PN10.0 to PN32.0 MPa (PN100 to PN320), making it a critical asset for modern ultra-supercritical thermal boiler main steam manifolds.

3. Stellite™ Hard-Faced Sealing & Throttling Face

   The valve disc and seat are overlay-welded with a heavy cobalt-based hard alloy (Stellite™), maintaining a finished pure metal thickness of $\ge\text{3mm}$. This provides peerless protection against severe high-velocity fluid erosion, wire-drawing, and thermal fatigue.

4. Anti-Scoring Surface Hardened Stem

   The valve stem undergoes precise centerless grinding followed by advanced surface nitriding or precipitation hardening. This provides the component with an ultra-smooth finish and high hardness, significantly lowering actuation torque and eliminating localized stem galling.

5. Integral Backseat for In-Line Packing Protection

   Features a precision-machined integral backseat that provides a reliable secondary mechanical seal when the valve is fully open. This isolate the packing chamber from line pressure, preventing fugitive emissions and increasing safety during operation.

6. Self-Lubricating Anti-Corrosive Packing

   Utilizes a premium flexible graphite packing ring configuration with built-in corrosion inhibitors. The self-lubricating profile ensures smooth stem movement and prevents any localized galvanic pitting or degradation over years of service.

7. Global Butt-Welding Compatibility

   Designed with full-penetration butt-welded ends conforming to ASME B16.25 and GB 12224. The welding bevel profiles can be custom-machined to match your specific pipeline schedule, guaranteeing flawless on-site installation and uncompromised structural loop integrity.