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Help CenterWholesale QuickFit Lug Type Butterfly Valve-Pneumatic PN10~20 DN40~1200 EPDM Seat Cast Iron Carbon Steel (WCB/WCA/WCC) OEM
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Carbon Steel Lug Butterfly Valve - Pneumatic
NPS 1 ½"~48" (DN40~DN1200); PN6~PN20 (Class125~150)
Product Advantages
Guaranteed Material Integrity: We guarantee an optimized composition for our Carbon Steel, eg. ASTM A216 WCB, maximizing key elements like Manganese for strength while strictly minimizing impurities like Phosphorus and Sulfur, with a full MTC for traceability.
Lug Hole Positional Accuracy: The true position of our threaded lug hole pattern is precisely controlled to an exacting tolerance of ±0.10 mm relative to the valve centerline.
100% Gauge Verification: To validate this precision, every valve's lug holes are 100% inspected with certified go/no-go gauges.
Premium raw steel finish with corrosion-resistant coating; deep-cast permanent markings for full traceability (material, pressure, heat number).
Standards and Certifications
Design & Manufacturing Standards: API 609, ASME B16.34, ASME Section VIII
Leakage Class: API 598 (Bi-directional Zero Leakage)
Side Flange Standards: ASME / ANSI: Class 125LB & 150LB; EN / DIN: PN6, PN10, PN16; BS / AS: BS 10 Table D/E, AS 2129 Table D/E; JIS: 5K, 10K (JIS B2220); GB / HG/T / GOST
Top Flange (Actuator Mounting) : ISO 5211; GB 90°
Face-to-Face Dimension: API 609, ISO 5752, EN 558-1, ASME B16.10, MSS SP-68
Testing & Inspection Standards: API 598; EN 12266-1; ISO 5208; BS 6755-1
Certifications & Conformity: ISO 9001:2015; CE Marking (PED); SIL 3; EAC; BV
SPECIFICATION OF THE VALVE |
|
|---|---|
Type of Connection |
Lug (NPT/ Through Hole Connection) Suitable for end-of-line service at full rated pressure |
Actuation |
Pneumatic |
Size |
NPS 1 ½"~48" (DN40~DN1200) |
Pressure |
PN6 ~ PN20 / ANSI Class 125 ~ 150 |
Testing Pressure |
Shell: 1.5 x Rated Pressure; Seat: 1.1 x Rated Pressure (acc. to API 598) |
Medium |
Water, Oil, Gas, Steam, Slurries, and various Corrosive Media |
Medium Temperature |
-25°C to +180°C (-13°F to +356°F) Dependent on seat material |
MATERIAL OF THE VALVE |
|
|---|---|
Body |
Carbon Steel (WCB, WCC) Low-Temp Carbon Steel (LCB, LCC, LC1) |
Disc |
Cast Iron: DI, CI Stainless Steel: CF8 (304), CF8M (316), CF3 (304L), CF3M (316L), CD3MN (Duplex 2205), CE3MN (Super Duplex 2507), 1.4529 (926) Aluminum Bronze: C95400, C95800 Nickel Alloy: CW6MC (Hastelloy C-276 eq.) |
Shaft |
Carbon Steel: 45# Stainless Steel: SS410, SS416, SS420; SS304, SS316, SS304L, SS316L; 17-4PH (SS630); Duplex 2205, Super Duplex 2507, 1.4529 Nickel Alloy: Monel K500, Hastelloy C-276 |
Soft Seat |
Elastomers: EPDM, HTEPDM, NBR (Nitrile Rubber / Buna-N), SIL (VMQ), FKM (VITON™), HYPALON™ Plastics: PTFE, PFA |
Coating |
• System: Fusion Bonded Epoxy (FBE) • Standard: Internal & External Coating • Dry Film Thickness (DFT): 200-250 µm |
Actuator Type
Double Acting: Utilizes air pressure to both open and close the valve.
Single Acting / Spring-Return: Utilizes air pressure for one action and spring force for the fail-safe return.
- Normally Closed (NC) / Fail-Close: The spring closes the valve upon loss of air pressure.
- Normally Open (NO) / Fail-Open: The spring opens the valve upon loss of air pressure.
Control Type
On/Off: For fully open or fully closed service, providing simple and reliable isolation.
Modulating: For precise flow control by positioning the disc at any angle. Requires an electro-pneumatic positioner.
Special Configurations
Electro-magnetically Released: A specialized double-acting actuator configuration designed for specific safety or emergency shutdown applications.
Additional Options: Other custom configurations are available upon request to meet your unique requirements.
QUALITY & COMPLIANCE CERTIFIED -- CE, ISO9001
Our commitment to quality is verified by internationally recognized standards, giving you the documentation and confidence you need for your critical applications.
THE AUTOMATION POWERHOUSE: ENGINEERED FOR STRENGTH & ENDURANCE
We seamlessly integrate high-performance pneumatic actuators with our rugged carbon steel (WCB) valve bodies to create a complete, factory-tested automation solution. Carbon steel provides superior strength and a higher temperature tolerance, ensuring rapid response and long-term reliability in demanding industrial applications.
Foundry-Level Material Control
Founded by casting experts, we guarantee material integrity from the source. Through PMI spectral testing, we verify alloy compositions, ensuring every butterfly valve casting strictly adheres to ASTM/EN standards for optimal performance and longevity in automated systems.
Precision CNC Machining
Our advanced CNC centers machine critical interfaces, like the ISO 5211 mounting pad, to exacting tolerances. This precision guarantees effortless, accurate alignment with any standard electric or pneumatic actuator, ensuring reliable automated control.
Proven, Reliable Design
With two decades of field validation in automated applications, our valve designs are proven to be sound and reliable. This experience means our products deliver consistent, dependable performance when integrated into complex control systems.
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