30"600LB WCB Globe Valve

loading

Поделиться с:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button
The ASME B16.34 WCB Globe Valve (30″ 600LB) is an extra-large bore, medium-to-high pressure cast steel globe valve, specifically designed for on-off, regulation, and throttling control of high-flow media in the oil and gas, power, chemical, water treatment, and general industrial sectors.Featuring a precision-cast carbon steel body conforming to ASTM A216 WCB, the valve delivers excellent mechanical strength, cost-effectiveness, and weldability. With an extra-large 30-inch bore and a 600LB medium-to-high pressure class, it ensures reliable shutoff and precise regulation under high-flow and high-pressure-differential operating conditions.The valve’s unique S-type flow passage and disc design provide distinct advantages in throttling and flow control, making it widely used at pump outlets, compressor bypass lines, flow regulation systems, and critical applications requiring frequent opening and closing.
штат:
Количество:
  • J-VALVES

Structural Features

  • WCB Cast Carbon Steel Body;Constructed from ASTM A216 WCB carbon steel, featuring high strength, good toughness, excellent castability and weldability, as well as outstanding cost performance. Suitable for medium-to-high pressure applications at ambient to moderate temperatures.

  • Extra-Large Bore Design:30-inch (DN750) extra-large bore design satisfies high-flow operating conditions. Optimized flow passage reduces turbulence and noise, enabling controllable pressure drop.

  • S-Type Flow Passage & Disc Structure:Built with an internal S-type flow passage for low inlet and high outlet medium flow. The disc lifts along the centerline of the seat, ensuring uniform wear on sealing surfaces, ideal for frequent opening/closing and throttling regulation.

  • Multiple Disc Types Available:Standard flat disc for general shut-off service、Conical/spherical disc for high-pressure sealing、Throttling/sleeve-type disc for precise flow control with a wide adjustable Cv range

  • Flanged or Butt-Weld End Connections:Equipped with RF (Raised Face) flanges (ASME B16.5) or BW butt-weld ends (ASME B16.25), delivering high connection strength and reliable sealing under 600LB medium-to-high pressure.

  • Fire-Safe Design:Compliant with API 607 standards. Flexible graphite packing and metal-sealed structures maintain sealing performance under fire conditions to prevent medium leakage.

  • Anti-Static Device:Conductive paths are installed between the stem, disc and body to ensure continuous static electricity dissipation, suitable for flammable and explosive media applications.

  • Blowout-Proof Stem Design:The stem bottom is equipped with a shoulder or retaining ring limit structure to prevent stem ejection under abnormal internal pressure, ensuring personnel and equipment safety.


Technical Parameters

  • Nominal Size: 30″ (DN750)

  • Pressure Class: 600LB (PN100)

  • Temperature Range: -29℃ to +425℃

  • Body/Bonnet: ASTM A216 WCB cast carbon steel; optional A105 forged steel (higher strength) or A350 LF2 (low-temperature service)

  • Disc: WCB/A105 with Stellite alloy overlay/hard chrome plating; or solid 13Cr stainless steel

  • Seat: WCB/A105 with Stellite alloy overlay; or solid 13Cr stainless steel

  • Stem: A105 + ENP, 17-4PH precipitation hardening stainless steel, or F6a (410 stainless steel)

  • Packing: Flexible graphite reinforced with Inconel wire; PTFE (low-temperature service)

  • Gasket: Flexible graphite stainless steel spiral wound gasket or metal ring gasket

  • Bolts: ASTM A193 B7/B7M (alloy steel) or B8M (stainless steel), with A194 2H/2HM/8M nuts

  • End Connection: Flanged (RF Raised Face / RTJ Ring-Type Joint, ASME B16.5); BW butt-weld ends (ASME B16.25)

  • Bonnet Type: Bolted bonnet (standard); pressure-seal bonnet (optional, recommended for high pressure and large bore)

  • Operation: Manual (worm gear box, standard for extra-large bore); electric (multi-turn motor), pneumatic (piston/diaphragm), hydraulic

  • Design Standard: ASME B16.34, API 602, BS 1873

  • Inspection Standard: API 598

  • Face-to-Face Dimension: Compliant with ASME B16.10


Application Areas

  • Oil & Gas Long-Distance Pipelines: High-flow shut-off and regulation at pump outlets, compressor inlets/outlets and metering stations. The 30-inch bore meets trunk line transmission capacity requirements.

  • Chemical & Coal Chemical Industry: Flow regulation, bypass control and safety relief in medium-pressure process pipelines. Globe valves offer superior precise regulation performance compared to gate valves and ball valves.

  • Water Treatment & Environmental Protection: Flow control and shut-off in large-scale water supply/drainage, sewage treatment and seawater desalination systems.

  • General Industrial Applications: High-flow regulation of water, oil, gas and other media, suitable for HVAC, water supply/drainage and general process pipelines.

  • Shipbuilding & Offshore Engineering: Large-bore shut-off in ballast water, bilge water and fire water systems. WCB material resists seawater and atmospheric corrosion.


Advantages & Values

  • Excellent Extra-Large Bore Regulation Performance: 30-inch S-type flow passage with guide ribs provides good flow regulation linearity and a wide adjustable Cv range, making it more suitable for precise throttling than butterfly valves and ball valves.

  • Balanced Economy & Reliability: WCB cast steel costs significantly less than forged steel and stainless steel, while meeting most industrial performance requirements at 600LB class, delivering remarkable cost optimization for extra-large bore projects.

  • Extended Sealing Surface Service Life: The disc lifts along the seat centerline for uniform sealing surface wear. Combined with Stellite alloy overlay, the opening/closing life is 2–3 times longer than that of gate valves.

  • Low Noise & Low Vibration: Optimized S-type flow passage reduces turbulence and cavitation. With sleeve-type discs, noise is reduced by 15–20dB, suitable for urban pipe networks and environmentally sensitive areas.

  • Comprehensive Safety & Compliance: Compliant with API 600/623, ISO 15848 and other specifications. SIL functional safety certification is optional, meeting general industrial HSE requirements.

  • Clear Upgrade Path: Upgradable to A105 forged steel for higher strength, A350 LF2 for low-temperature service, F316 for improved corrosion resistance, and pressure-seal bonnet for high-temperature and high-pressure conditions, protecting initial investment.

предыдущий: 
следующий: 

Категория продукта

Новости

Подробнее >>
Запрос из продукта
Производитель и поставщик промышленных клапанов, в том числе плавучие шариковые клапаны, шариковые клапаны с фланцевыми затворами, сварные клапаны затвора, клапаны затвора высокого давления, клапаны шарика, качающиеся клапаны, двойные дисковые пластины, Y Litchers и т. Д. Для получения дополнительной информации, пожалуйста, отправьте нам свое электронное письмо.

БЫСТРЫЕ ССЫЛКИ

СВЯЗАТЬСЯ С НАМИ

Тел: 0086 577 56692520 /0086 577 56692524
Факс:0086 577 56692524
Электронная почта: sales@j-valves.com
WhatsApp:+86 13600648865
Адрес:  Венчжоу Китай
Шаровые клапаны, затворы, шаровые клапаны, проверку клапанов, клапан бабочки, ситечко.
Copyright © 2020 J-VALVES. Все права защищены | Поддержка от Leadong | Sitemap | Политика конфиденциальности