Name: Cage‑Sleeved Plug Valve | PTFE Lined Corrosion‑Resistant Plug Valve Metal‑to‑Metal Throttling
Availability: InStock

Cage‑Sleeve Protected Plug Valve, PTFE Lined, Metal‑to‑Metal Throttling‑ GEKO Valve

Size Range

NPS 1/2" to 12" (DN15 to DN300), larger sizes up to DN600 available upon request

Body Material Options

Carbon Steel (WCB), Stainless Steel (CF8, CF8M, CF3, CF3M), Duplex Stainless Steel (4A/5A), Alloy 20, Hastelloy®, Monel®, Inconel®, Titanium

Temperature Range

-50°F to +650°F (-46°C to +343°C), extended ranges available with special alloys

Stem / Shaft Material

ASTM A479 Gr. 316, optional 17-4PH, Duplex SS, low-friction coating available

Maximum Allowable Working Pressure

ASME Class 150 & 300, PN16, PN25, PN40

Seats & Seals

RPTFE, TFM1600, Tek-Fil®, PEEK, UHMWPE, Metal-to-Metal

Plug Material

ASTM A351 Gr. CF8M, optional hardfaced/coated (ENP, Stellite®, Cr-Carbide)

Shutoff Rating

Class VI, bubble-tight shutoff optional

Operation Method

Lever, Gear Operator, Pneumatic Actuator, Electric Actuator, ISO 5211 platform

Body Style & Ports

2-Way (Straight), 3-Way (L- or T-pattern), Full Bore or Reduced Bore

Design Standards

ASME B16.34, API 608, MSS-SP-72

End Connection Standards

Flanged: ASME B16.5 (RF/RTJ), DIN EN1092 PN16/25/40

Testing & Inspection

API 598, ISO 5208 Pressure & Leakage Test

Optional NDT: Radiography, Ultrasonic, Magnetic Particle

Face-to-Face Dimensions

ASME B16.10, ISO 5752

Special Design Features

Bi-directional sealing, low operating torque, multiple seat options, full-bore flow, modular actuation, corrosion & wear resistance, long service life

Applications

Oil & Gas pipelines, Petrochemical processing, Fuel handling systems, Municipal water & wastewater, Chemical plants, Power generation

- Size Range: 1‑16 Inch

- Body Material: Carbon Steel / Stainless Steel or Others

- Plug & Cage Material: CD4‑MCU

- Sealing Component: PTFE Liner

GEKO Cage‑Sleeved Plug Valve is a specially‑engineered lined plug valve

built to deliver reliable throttling and bubble‑tight shut‑off performance

under corrosive, high‑velocity and slurry‑laden operating conditions. Equipped

with a protective metal cage sleeve installed on the plug, this unique design

shields the PTFE liner against severe erosion while the valve is throttling

under high‑pressure‑drop service.

Design Principle

The metal cage sleeve is securely fastened onto the plug, locked in‑place

with a pin welded to the bottom of valve body. Bearings fitted on the cage

maintain a controlled clearance between cage and plug, enabling smooth,

free rotation of the plug during operation. During throttling, sealing occurs

metal‑to‑metal between cage and body; while positive shut‑off provides

metal‑to‑PTFE liner sealing. The cage physically covers and protects the PTFE

liner from direct impact and erosion caused by fast‑moving process fluids.

Unique design of Cage‑Sleeve Protected Plug Valve

Cage-Type Plug Valve with PTFE Sleeve Protection

PTFE Liner Protection — The metal cage absorbs high‑speed fluid impact, dramatically extending liner service life.
Metal‑to‑Metal Throttling — Stable throttling performance without damaging soft sealing components.
High‑Velocity Fluid Compatibility — Reduces turbulence and flow disturbance for smoother fluid passage.

Excellent Corrosion Resistance — PTFE‑lined sealing assembly handles a wide range of aggressive chemical media.

Durable Slurry Service — Optimised for abrasive‑containing process fluids with suspended solids.

GEKO Cage-Type Plug Valve with PTFE Sleeve Protection Application

Oil & Gas
Upstream, midstream, and downstream pipelines, storage tanks, and refinery systems requiring high pressure, corrosion resistance, low torque, and reliable sealing.
Petrochemical & Chemical
Handling acids, alkalis, organic solvents, high-temperature polymers, and corrosive media in chemical plants and processing units.
Power & Energy
Steam distribution, boiler feed, cooling water, and auxiliary systems in thermal and nuclear power plants, requiring high reliability and long service life.
Municipal Water & Wastewater
Water supply, wastewater treatment, chemical dosing, and slurry pipelines requiring wear resistance, corrosion resistance, and leak-proof performance.
Marine & Offshore
Fuel systems, ballast water, freshwater pipelines on ships and offshore platforms; seawater applications needing corrosion resistance and reliable sealing.
Food, Beverage & Pharmaceutical
Flow control, distribution, and CIP cleaning systems in beverage, dairy, brewery, and pharmaceutical plants requiring hygiene, corrosion resistance, and easy cleaning.
Specialty & Industrial
High-viscosity or solidifying media like asphalt, sulfur, polymers, and slurries; gases such as nitrogen, hydrogen, and inert gases requiring heated jackets, wear resistance, and low torque operation.

热门标签 :

Corrosion‑Resistant Plug Valve

Metal‑to‑Metal Throttling Plug Valve

Lined Protection Industrial Plug Valve

High Velocity Fluid Plug Valve

CD4‑MCU Plug Valve

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Cage‑Sleeved Plug Valve | PTFE Lined Corrosion‑Resistant Plug Valve Metal‑to‑Metal Throttling

GEKO cage‑sleeved plug valve features PTFE liner protection, metal‑to‑metal throttling design, ideal for slurry, brine, phosphoric acid and other corrosive high‑velocity fluid services. Sizes 1‑16 inch, carbon steel / stainless‑steel body available.

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