Masoneilan Camflex II 35002 Series Valve Seal & Packing Kit
Overview
The Masoneilan Camflex II 35002 eccentric-plug rotary control valve is one of the most widely installed severe-duty control valves across Gulf refining, gas processing, and petrochemical assets, prized for its compact face-to-face dimension, tight Class V/VI shutoff, and ability to absorb high pressure drops without excessive dynamic torque. Because the Camflex II achieves control by rotating a plug across a contoured seat rather than sliding a trim stem through a cage, its long-term sealing performance is governed almost entirely by a small set of soft-good components – the body/bonnet seal, the stem packing set, and the O-rings fitted to the guide bushings and packing follower. Years of thermal cycling, abrasive duty, and routine disassembly for maintenance harden or compression-set these components long before the cast body or the eccentric plug itself wears out, which is why Baker Hughes engineers and quotes them as a dedicated, per-valve seal and packing kit rather than a stocked catalog item.
With fast quotation turnaround and technical support, Seven Star LLC proudly supplies this Masoneilan Camflex II 35002 valve seal and packing kit to refineries, LNG trains, and gas-processing operators across Oman and the wider GCC. Because Baker Hughes does not publish a fixed catalog part number for this kit – it is engineered and quoted against the exact size, pressure class, and packing option of each installed valve – Seven Star LLC’s instrumentation division verifies nameplate data with the customer before every order, ensuring the carbon-core braided PTFE or EF Seal emission-free packing, the correct Viton, fluorosilicone rubber, or EPDM O-rings, and the matching body seal arrive as a verified, drop-in set rather than a guess.
Operating Principle
The Masoneilan Camflex II 35002 achieves shutoff by rotating an eccentrically mounted plug into a matched seat, so unlike a sliding-stem globe valve the primary process seal is a line-contact seating interface rather than a soft trim edge, and the seal kit’s role is to contain everything around the rotating shaft rather than the flow-control interface itself. The stem passes through a triple, over-sized bearing arrangement whose guide bushings carry their own replaceable O-rings; as these O-rings compression-set from repeated 90-degree rotation cycles and thermal exposure, clearance opens at the bushings and process fluid begins to weep along the shaft long before it ever reaches the external packing box. The carbon-core braided PTFE packing (or the ISO-15848-1 certified EF Seal option for emission-sensitive service) sitting above the bushings is the final barrier to atmosphere, compressed axially by the packing follower against the stem to form a controlled-friction, low-leakage seal that must be renewed at every disassembly, because compressed PTFE does not recover its original sealing geometry once it has been unloaded.
Between body and bonnet, and again at the packing follower, the kit’s O-rings and body seal close off the secondary and tertiary containment paths that a rotary control valve depends on for fugitive-emission compliance. A double O-ring seal at the follower backs up the primary packing set so a single compression-set O-ring cannot open an unmonitored leak path to atmosphere, while the body seal accommodates the differential thermal growth between the cast body and bonnet across the Camflex II’s full –320°F to 750°F service window. Rebuilding a Camflex II with a correctly matched seal kit restores this entire containment chain in one pass – bushings, packing, follower O-rings, and body seal together – rather than patching a single leak point and leaving the remaining soft goods to fail within months.
Engineering Design of the Masoneilan Camflex II 35002
The Masoneilan Camflex II 35002 is built on a cast integral-bonnet body as standard, with a separable-bonnet design available on 1–12 inch sizes for plants that prefer to service the trim without disturbing the body-to-pipe joint. The self-aligning eccentrically rotating plug is solid Stellite No. 6 on the smaller 1–2 inch sizes and 316L stainless steel with hardfaced seating surfaces on the 3–16 inch range, giving the valve the wear resistance to hold tight shutoff across repeated cycles in erosive, high-pressure-drop service. Upper and lower stem guides are available in stellite or alternative hardened materials, and the packing box is engineered to accept either standard carbon-core braided PTFE or the low-emission EF Seal cartridge without modification to the bonnet casting.
Field access to the Masoneilan Camflex II 35002 seal kit’s components is deliberately straightforward: the packing follower, gland flange, and bushing retainers are reached from outside the bonnet without pulling the actuator centerline out of alignment, which keeps rebuild time short on a rotary valve family that is frequently found in continuous-duty compressor recycle, anti-surge, and let-down service where extended outage windows are not available. Seven Star LLC’s kit is packaged with every soft-good the manufacturer’s IOM calls out for a complete rebuild – packing rings, guide-bushing O-rings, follower O-rings, and the body/bonnet seal – matched to the customer’s confirmed size, pressure class (ASME 150 through 600), and body material (carbon steel, 316/316L stainless, chrome-moly, or Hastelloy C on the smaller slurry-service variant).
Key Features
This Masoneilan Camflex II 35002 seal and packing kit is engineered to restore full containment performance on an in-service Camflex II valve. Key features of the Masoneilan Camflex II 35002 kit include:
- Genuine, manufacturer-specified soft-good components sized to the customer’s confirmed Masoneilan Camflex II 35002 nameplate data, size, and pressure class.
- Carbon-core braided PTFE packing as standard, with the ISO-15848-1 certified EF Seal low-emission option available for environmentally regulated units.
- Guide-bushing and packing-follower O-rings supplied in Viton, fluorosilicone rubber, or EPDM to match the original elastomer specification and process temperature.
- Body/bonnet seal engineered for the Camflex II’s full –320°F to 750°F operating range without loss of compression set.
- Double O-ring follower design that backs up the primary packing so a single seal never becomes the sole barrier to atmosphere.
- Compatible with both the standard integral-bonnet casting and the separable-bonnet configuration used on 1–12 inch sizes.
- Kit contents cross-checked against the current Baker Hughes 35002 instruction manual before dispatch, avoiding mismatched packing cross-sections or wrong-durometer O-rings.
- Supplied with installation guidance so plant maintenance teams can complete the rebuild during a scheduled valve outage without waiting on a manufacturer field technician.
Industrial Applications
The Masoneilan Camflex II 35002 is a workhorse across Middle East hydrocarbon processing, and this seal kit is most frequently requested for units in compressor anti-surge and recycle service, pressure let-down stations, and high-pressure-drop throttling duty on gas-processing trains, where the valve’s rotary plug is cycled thousands of times per year and its packing box is the first thing to show fugitive emissions on a leak-detection survey. Refineries and gas plants around Muscat, Sohar, and the Salalah free zone rely on scheduled Camflex II rebuilds during turnarounds to keep VOC emissions within permit limits and to avoid an unplanned trip caused by a weeping stem seal on a unit that cannot be isolated without shutting down an entire train.
With engineering support in Muscat, Seven Star LLC supplies this Masoneilan Camflex II 35002 valve seal and packing kit to instrumentation and reliability teams across the Sultanate of Oman and the broader GCC, supporting district cooling plants, desalination intake stations, and petrochemical complexes that standardized on the Camflex II decades ago and continue to run it in critical throttling and anti-surge loops. Because Seven Star LLC sources the common elastomer and packing variants on request and confirms the lead time for a size- and class-matched kit at quotation, plant engineers in Oman and across the GCC use this listing to plan a Camflex II rebuild into an upcoming shutdown rather than discovering a leak mid-run and improvising with generic packing that was never qualified against the valve’s actual service conditions.
Technical Specifications
Representative build data for the Masoneilan Camflex II 35002 platform this kit is engineered to match, confirming the Masoneilan Camflex II 35002 identity of every kit shipped:
| Parameter | Specification |
|---|---|
| Model | Masoneilan Camflex II 35002 Series |
| Valve Type | Eccentric-plug rotary control valve |
| Sizes Covered | 1–16 inch |
| Pressure Classes | ASME 150, 300, 600 (150/300 on 10–16 inch) |
| Standard Packing | Carbon-core braided PTFE |
| Low-Emission Option | EF Seal – ISO-15848-1 certified |
| O-Ring Materials | Viton, fluorosilicone rubber, EPDM (FFKM optional) |
| Bonnet Configurations | Integral bonnet (standard); separable bonnet (1–12 inch) |
| Body Materials Supported | Carbon steel, 316/316L stainless, chrome-moly, Hastelloy C |
| Temperature Range | –320°F to 750°F (–196°C to 400°C) |
Request a Quote for Masoneilan Camflex II 35002 Series Valve Seal & Packing Kit
Seven Star LLC invites facility engineers, procurement leads, and maintenance planners across Oman and the GCC to submit a formal RFQ for the Masoneilan Camflex II 35002 valve seal and packing kit, the Masoneilan Camflex II 35002 with the valve’s confirmed nameplate data – size, pressure class, packing type, and elastomer code – so the correct kit can be engineered and quoted without guesswork. Seven Star LLC sources common Camflex II soft-good variants to order, can furnish the current Baker Hughes technical datasheet on request, and can put customers directly in touch with its instrumentation division for turnaround planning support. Backed by genuine manufacturer documentation, Seven Star LLC stands behind every kit with manufacturer traceability and warranty support that a generic aftermarket seal supplier cannot offer.
Browse the full Masoneilan range or see more Control Valves products supplied by Seven Star LLC in Oman and the GCC.
Masoneilan control valves and actuator series
The globe valve listing centers on the 21000 series, including the cryogenic version with extension bonnet, and the 41005 cage-guided series in high pressure, API 6A and VRT anti-cavitation executions. The 80385 and 80386 are three-way combining and diverting valves. Rotary products include the 35002 Camflex II and the 37002 MiniTork II butterfly control valve. Actuators cover spring-diaphragm, cylinder and rack-and-pinion designs, among them the 5A cylinder actuator for Camflex II. Masoneilan also makes pressure regulators, SVI digital valve positioners and displacer-type level instruments, and offers Lo-dB trim for noise control.Where Masoneilan valves are used
Throttling duty on steam, hydrocarbons, gas and water is the daily work of these valves: feedwater and steam conditioning in power plants, separator and compressor loops in gas processing, high pressure drop letdown, cryogenic service in LNG and air separation, and general flow, pressure and level control in refineries and chemical plants.Ordering Masoneilan valves and spare parts: what we need
For spare parts the serial number is decisive, since the factory record behind it lists trim, materials and actuator. Send a clear nameplate photo with serial number, model number, size and pressure class. For a new valve add the process data: fluid, inlet and outlet pressure, temperature, minimum, normal and maximum flow, required leakage class, fail position, air supply and control signal.Browse Masoneilan products by category: Control Valves, Valve Actuator, Regulators, Valve Positioner, Level Transmitter.
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