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J-VALVES
3/4"x1/2"x1/2" 1500LB F316 Stainless Steel DBB Ball Valve Double Isolation Design
F316 Stainless Steel Construction: Valve body, ball and stem are all made of F316 stainless steel, delivering excellent corrosion resistance and intergranular corrosion resistance, suitable for service with chloride ion-containing corrosive media.
Double Isolation Design: Equipped with two independently sealed seats to realize full upstream and downstream media shutoff, meeting stringent isolation requirements.
Bleed Function: A bleed port is arranged at the valve body middle to discharge residual media between seats in closed position, facilitating pressure inspection and safe maintenance.
Forged Valve Body: Integral forging process ensures dense structure and strong pressure-bearing capacity, perfectly applicable to 1500LB (PN250) high-pressure service.
Floating Ball Design: The ball floats freely under medium pressure to closely fit with valve seats for tight and reliable sealing performance.
Fire-Safe Design: Compliant with API 607 standard, maintaining stable sealing performance and preventing medium leakage even under fire conditions.
Anti-Static Device: Built-in anti-static structure eliminates static accumulation and lowers fire and explosion hazards.
Anti-Blowout Stem Design: Optimized stem structure prevents blowout, guaranteeing safe operation under high pressure.
Compact Structure: 3/4"×1/2"×1/2" reducing tee type structure with small size and light weight for easy installation and system integration.
Size Range: 1/2"~48" (DN15~DN1200)
Pressure Class: 150LB~2500LB (PN20~PN420)
Temperature Range: -29℃ ~ 200℃ (Standard); Optional high-temperature version up to +538℃
Materials
Valve Body: F316 (ASTM A182 F316) Stainless Steel
Ball: F316 Stainless Steel with surface hardening treatment
Valve Stem: F316 Stainless Steel
Seal Material: PTFE, RPTFE, PEEK, Metal Seal (Optional)
End Connection: Flanged (RF/RTJ, per ASME B16.5)
Operation Mode: Manual (Lever/Gear Box), Pneumatic, Electric
Design Standards: ASME B16.34, API 6D, API 608
Test Standards: API 598, ISO 5208, API 6D
Face-to-Face Dimension: Conforms to ASME B16.10
Bleed Port Size: 1/2" NPT (Standard Configuration)
Oil & Gas Industry: Applied in oil and gas field exploitation, gathering and processing systems, realizing reliable double isolation for wellhead assemblies, metering stations and manifold systems.
Chemical Industry: Suitable for transmission and reaction systems of various corrosive chemical media to avoid medium leakage and ensure production safety.
Power Industry: Used in high-temperature and high-pressure systems such as steam systems and water supply systems for safe system isolation.
Pharmaceutical Industry: Installed in process pipeline systems to ensure medium isolation and cleanliness during pharmaceutical production.
Offshore Platform & LNG: Adaptable to marine environments and low-temperature working conditions, satisfying strict anti-corrosion and sealing demands.
General Industrial Service: Used for flow control and dual isolation of water, oil, gas, chemicals and other media.
High Safety with Dual Isolation: Independent double-seat sealing achieves genuine double block effect, greatly cutting leakage risks and protecting personnel and equipment safety.
Convenient Maintenance via Bleed Function: Built-in bleed port simplifies seat sealing performance detection and residual medium discharge, optimizing maintenance procedures.
Superior Reliability: F316 stainless steel material and floating ball structure ensure stable valve operation under high pressure and high temperature, reducing maintenance frequency and downtime.
Wide Application Coverage: Diverse sealing options plus broad pressure and temperature ranges enable adaptation to complex working conditions and various medium properties.
International Standard Compliance: Strictly designed and tested in accordance with ASME, API and other international standards to guarantee stable product quality and global applicability.
Cost-Effectiveness: Integrated double block and bleed functions eliminate extra valve and pipeline fittings, lowering installation cost and system complexity while upgrading overall system safety.
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