| Availability: | |
|---|---|
| Quantity: | |
J-VALVES-BV
J-VALVES
8481804090
Carbon Steel Material: The valve body is made of carbon steel, providing high strength and good corrosion resistance.
Bellows Seal: Adopts a bellows seal design to effectively prevent medium leakage and meet environmental protection requirements.
Flange Connection: Uses DIN standard flange connection to ensure reliable installation and tight sealing.
Fire-Safe Design: Complies with API 607 standards, maintaining sealing performance even in case of fire to prevent medium leakage.
Anti-Static Device: Built-in anti-static device effectively prevents static accumulation, reducing the risk of fire and explosion.
Stem Blowout Prevention: The stem features a blowout-proof design to ensure operational safety.
Compact Design: Small in size and light in weight, facilitating installation and integration into existing systems.
Size: 6" (DN150)
Pressure Rating: 300LB (PN50)
Temperature Range: -196℃ to 343℃
Materials:
Valve Body: Carbon steel
Bellows: Stainless steel
Stem: Stainless steel
Sealing Material: PTFE, flexible graphite
Connection Type: Flange connection (RF)
Operation Mode: Manual (handwheel operation)
Design Standards: API 600, ASME B16.34
Testing Standards: API 598
End-to-End Dimensions: Compliant with ASME B16.10 standards
Oil and Gas Industry: Used in oil and gas field exploration, gathering, transportation, and processing systems to ensure reliable isolation and control of media.
Chemical Industry: Suitable for conveying and reaction systems of various chemical media, preventing leakage and ensuring production safety.
Pharmaceutical Industry: Applied in pipeline systems during pharmaceutical production to ensure media isolation and cleanliness in the drug manufacturing process.
Food and Beverage Industry: Meets food-grade requirements, used in pipeline systems for food and beverage production to ensure hygiene and safety.
HVAC: Used in cooling water systems, hot water systems, etc., to ensure efficient operation of the system.
General Industrial Applications: Suitable for controlling and isolating media such as water, oil, and gas.
High Reliability: The carbon steel material and bellows seal design ensure stable operation of the valve in high-pressure and low-temperature environments, reducing maintenance frequency and downtime.
High Safety: Fire-resistant and anti-static designs, along with reliable sealing performance, effectively reduce leakage risks and protect personnel and equipment safety.
Easy Installation and Maintenance: The flange connection simplifies installation and allows for convenient maintenance and repair.
Wide Applicability: Multiple material options and a broad range of pressure and temperature ratings enable adaptation to various complex working conditions and media characteristics.
How a butterfly valve disc is fixed to its stem: taper pins, pinless hubs and through shafts, the backlash each allows, and the failures they cause.
Steam PRV station design: critical pressure ratio, Kv sizing, 1/3-2/3 parallel turndown, series stations and safety valve sizing rules.
Why LNG ball valve seats that pass warm tests leak cold at -162°C: contraction arithmetic, cold preload, PCTFE vs PTFE, ISO 28921-2 and MSS SP-134 limits.
What API 607 proves: burn sequence, 7th-edition leak limits per NPS, cavity pressure rules, API 6FA vs ISO 10497, and the clauses buyers must check.
MSS SP-80 bronze valves: the class number is a saturated steam rating, not a pressure rating. Alloys, threads, lead-free rules and where bronze stops.
Stellite or tungsten carbide for erosive service: erosion angles, hardness ratios, HVOF vs weld overlay, the 500 C limit, and the clauses that win acceptance.
Valve coating is a defect-budget decision, not a product choice: ENP vs FBE vs sprayed aluminium, holiday arithmetic, CUI and the specs that win acceptance.
Temporary and start-up strainers for commissioning: placement, plate versus mesh, blowdown discipline and the removal record that proves it was pulled.
What MSS SP-25 marking really commits to: body symbols, three-symbol trim marking, melt identification and the certificate that closes the loop.
Why ball valves pass high-pressure seat tests and fail at 0.6 MPa: seat preload arithmetic, SPE and DPE seats, DBB vs DIB-1/DIB-2, and test-proofing specs.
RF, RTJ and butt-weld valve ends compared: how each joint seals, which duty suits it, and the four assembly errors that cause most joint leaks.
Why PTFE and PFA liners fail when the chemistry is right: permeation arithmetic, vacuum collapse, cold flow and the 11:1 expansion mismatch at the flange.
C95800 and C95500 are cast to ASTM B148; C63200 is wrought to ASTM B150. Aluminum and manganese levels decide strength, weldability and valve use.
Jacket heat load arithmetic, sulfur's 159 C viscosity trap, the separate jacket pressure test and the weld failures buyers discover in year five.
API 603 and API 600 both cover bolted bonnet gate valves, but wall thickness basis, class ceiling and casting rules decide which one you can actually buy.
ISO 5208 Rates A-G explained with real numbers, how API 598, API 6D and FCI 70-2 map across, and what metal seats can honestly achieve.
How to choose a forged or cast valve body: API 600 vs API 602 size limits, casting quality factor, NDT coverage, weld repair policy and cost crossovers.
How pressure seal bonnet valves work, why bolted bonnets stop at Class 900, seal ring materials, disassembly rules and the low-pressure leak signature.
A lift check valve closes in millimetres, not degrees. Disc lift, cracking pressure, chatter, and why steam and compressor duty punish a badly sized one.
Category A and Category B butterfly valves differ at the seat, not the body. What each one seals with, where each leaks, and what to put on the datasheet.