Chinese add: SANQIAO INDUSTRAIL ZONE,OUBEI SUB-DISTRICT,
YONGJIA OUNTY,WENZHOU CITY,WZ 325100 CHINA.
Korean add: 137513 JEONGWANGDONG, SI JEUNG-SHI, KYEONGGIDO

Chinese number:86-577-57687957 Kroean number:010-8335-6676 info@xiaovalve.com

Stainless steel floating ball valve small size with turbine head

Stainless steel floating ball valve small size with turbine head

Model Example: FFQ41H-16C ~ FFQ41H-400LB

Applications

Oil & Gas Pipelines: High-pressure gas shutoff

Chemical Plants: Corrosive fluid control

Power Plants: Main steam system valves

Service Commitment

Warranty: 18 Months Delivery: 72-hour standard delivery Global Service: EXW/FOB/CIF/ EXW/FOB/CIF Incoterms

Description

Crafted from premium forged steel and certified to API 6D/CE/ISO standards, our Forged Steel Floating Ball Valve is engineered for high-pressure, high-temperature, and critical applications. The floating ball structure ensures bidirectional zero-leakage sealing under medium pressure, making it an ideal solution for fluid control in oil & gas, chemical, and power industries.

Superior Material Performance
Forged Body: ASTM A105/A182 forged steel, 30% higher pressure resistance (PN16-PN420)
Hardened Treatment: Ball surface hardness HRC60+, 50% longer service life

 

Advanced Sealing System
Bidirectional Zero Leakage: API 598 compliant, PTFE/graphite sealing
Fire-Safe Design: API 607 fire-test certified

Efficient Operation
Low Torque: 40% reduced operating torque, multi-actuation options
Visual Indicator: Clear position marking, optional limit switches

Detailed Cross-Section Diagram of a Flanged Ball Valve Assembly

This technical illustration shows a cross-sectional view of a flanged ball valve assembly, highlighting all critical internal and external components. The diagram clearly labels each part, including the valve body, stem, ball, seats, seals, and handle mechanism. The inset provides an enlarged view of the stem sealing arrangement, offering a closer look at the packing gland and spring elements that ensure a leak-free seal during operation.

Key features include:

  • A full-bore design allowing unrestricted flow.

  • A robust handle mechanism for manual control.

  • Precision-seated ball for reliable sealing and minimal torque.

  • Secure bolted flange connections.

  • Detailed component numbering for easy identification during assembly, maintenance, or replacement.

This image is ideal for engineers, maintenance personnel, or procurement teams seeking a clear understanding of industrial valve construction and operation.

Technical Specifications

Parameters English Details
Size DN15~DN300 (½”~12″)
Pressure Rating PN16~PN420 / Class150~2500LB
Temperature -29℃ ~ +200℃ (Customizable to +425℃)
Connection Flange/Threaded/Welded (SW,BW)
Body Material ASTM A105/A182 F304/F316

 

Feature
Size: 1/2″ – 4″
Class: 150~2500Lb
Three & Two Pieces Forged Steel Body
Floating Ball, Full & Reduced Bore
Anti-static Device
Blow-out Proof Stem
Fire Safe Design
Low Emission

 

Specification Standard / Code
Design ASME B16.34 / BS 5351
Face to Face ASME B16.10
End Flange ASME B16.5
Bw End ASME B16.25
Test API 598 / BS 6755
Fire Safe Test API 607 / API 6FA
Special NACE MR-01-75

 

 

No. Part Material
1 Body ASTM A105+ENP, A182-F6, F304, F316, F316L, F304L, F51
2 Seat PTFE, RTPFE, PEEK, PPL
3 Antistatic Spring Stainless Steel, SS316
4 Stem A105+ENP, A182-F6, F304, F316, F316L, F304L, 17-4PH, F51
5 “O”-Ring NBR, Viton
6 Limited Plate 1015+Cr, Carbon Steel+Cr
7 Lever A216-WCB, 1025+Cr
8 Fix Nut Stainless Steel
9 Backup Ring ASTM A182-F304, F316
10 Packing PTFE, Graphite
11 Positioning Pin Stainless Steel
12 Thrust Washer PTFE
13 Gasket PTFE, Graphite
14 Ball ASTM A105+ENP, ASTM A182-F6, F304, F316, F316L, F51
15 Bonnet ASTM A105+ENP, A182-F6, F304, F316, F316L, F304L, F51
16 “O” Ring NBR, Viton
17 Stud ASTM A193-B7, B7M, B8, B8M
18 Nut ASTM A194-2H, 2HM, 8, 8M