Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"API 6D Standard Trunnion Mounted Ball Valve with Double Block and Bleed and Fire","imgUrl":"https:\/\/img.chinax.com\/nimg\/bd\/c0\/4a89e352a8f2f64252cba1bfe1b4-200x200-1\/api_6d_standard_trunnion_mounted_ball_valve_with_double_block_and_bleed_and_fire.jpg","attrs":{"Piston Rod Diameters":"32 mm to 220 mm","Nominal Pressure":"250 bar (25 MPa)","Max Pressure":"Up to 300 bar (Static)","Brand Name":"Guoyue"}}
{"title":"QDY421F \/ QDQ421F Gas-Liquid Emergency Shut-Off Valve with 5 Seconds Shut-Off","imgUrl":"https:\/\/img.chinax.com\/nimg\/3d\/d0\/bcd1b6f5284fbaa0bdb337230f46-200x200-1\/qdy421f_2f_qdq421f_gas_liquid_emergency_shut_off_valve_with_5_seconds_shut_off_time_2c_fusible_alloy_links_2c_and_bubble_tight_sea.jpg","attrs":{"Nominal Pressure":"2.5 MPa","Weight":"10","Working Temperature":"-40\u00b0C to +50\u00b0C","Brand Name":"Guoyue"}}
{"title":"Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire","imgUrl":"https:\/\/img.chinax.com\/nimg\/ba\/5b\/8bdb0901beddf1483d939661390d-200x200-1\/q47_series_trunnion_mounted_fixed_ball_valve_with_double_block_and_bleed_2c_fire_safe_26_anti_static_for_high_pressure_application.jpg","attrs":{"Nominal Pressure":"250 bar (25 MPa)","Max Pressure":"300 bar (Static)","Pressure Rating":"Class 150 to 1500 \/ PN1.6 to PN16.0 MPa","Brand Name":"Guoyue"}}
{"title":"A41 Series Spring-Loaded Micro-Opening Safety Valve with H8 Bore Precision, Ra","imgUrl":"https:\/\/img.chinax.com\/nimg\/bf\/ad\/b4f715b3efef912bd7f7a5e861e5-200x200-1\/a41_series_spring_loaded_micro_opening_safety_valve_with_h8_bore_precision_2c_ra_3c0_4_ce_bcm_surface_roughness_2c_and_21_bar_max_.jpg","attrs":{"Surface Roughness":"Ra<0.4\u03bcm","Bore Precision":"H8","Max Flow":"160 l\/min (customizable)","Brand Name":"Guoyue"}}
{"title":"Q41F Series Floating Ball Valve with Precision Floating Ball Design, 90-Degree","imgUrl":"https:\/\/img.chinax.com\/nimg\/cc\/41\/e5dd9685cfe4940778c5108333f6-200x200-1\/q41f_series_floating_ball_valve_with_precision_floating_ball_design_2c_90_degree_quick_operation_2c_and_full_bore_flow.jpg","attrs":{"Shell Test Pressure":"3.75 MPa \/ 6.0 MPa","Nominal Pressure":"2.5 MPa \/ 4.0 MPa","Connection Standard":"Flanged (ASME B16.5, DIN, JIS, GB)","Brand Name":"Guoyue"}}
{"title":"CQA41F Series Leak-Proof One-Piece Ball Valve with Adjustable Floating Seat and","imgUrl":"https:\/\/img.chinax.com\/nimg\/bf\/12\/61434a1f90b2949c05e33da384d1-200x200-1\/cqa41f_series_leak_proof_one_piece_ball_valve_with_adjustable_floating_seat_and_quick_connect_interface_for_lpg_26_chemical_tanker.jpg","attrs":{"Nominal Pressure":"250 bar (25 MPa)","Piston Rod Diameters":"32 mm to 220 mm","Bore Diameters":"50 mm to 320 mm","Brand Name":"Guoyue"}}
API Standard Trunnion Mounted Ball Valve (Class 400/600)
Product Overview
The API Standard Trunnion Mounted Ball Valve series is engineered for high-pressure industrial applications requiring exceptional reliability and safety. Compliant with API 6D and ASME B16.34 standards, these valves are designed for heavy-duty service in oil and gas transmission, petrochemical plants, and power generation.
The trunnion-mounted design features a fixed ball with floating seats, ensuring consistent sealing performance and significantly lower operating torque compared to floating ball valves, especially in large-diameter and high-pressure systems.
Key Features
Trunnion-Supported Ball: The ball is supported by high-strength bearings at the top and bottom, distributing hydraulic loads to the body and ensuring stable operation.
Double Block and Bleed (DBB): Provides independent sealing on both upstream and downstream sides, allowing for safe cavity venting and integrity testing.
Automatic Cavity Relief: Integrated seat design automatically relieves excess pressure from the body cavity to the downstream pipeline.
Low Operating Torque: Self-lubricating bearings and advanced seat materials reduce friction, making them ideal for automated actuation.
Blow-out Proof Stem: High-security stem design prevents stem ejection under system pressure.
Fire-Safe & Anti-Static: Engineered to meet API 607/API 6FA standards for fire safety and anti-static protection.
Standards Compliance
Design: API 6D, ASME B16.34
Face-to-Face: ASME B16.10, API 6D
Flange Dimensions: ASME B16.5, MSS SP-44
Butt-Weld Ends: ASME B16.25
Inspection & Testing: API 6D, API 598
Technical Specifications
Parameter
Specifications
Size Range
2" to 28" (DN50 - DN700)
Pressure Class
ASME Class 400, Class 600
Body Materials
WCB, LCB, CF8, CF8M, CF3, CF3M, Duplex Steel
Seat Materials
PTFE, RPTFE, Nylon, PEEK, Metal-to-Metal
Temperature Range
-46°C to +250°C (depending on material selection)
Operation
Lever (Q47), Worm Gear (Q347), Electric/Pneumatic (Q947)
Dimensional Data (Reference)
Class 400 Performance Highlights
Face-to-Face (L): From 292mm (2") to 1397mm (28")
Flange Diameter (D): Up to 1035mm for 28"
Weight: Ranging from 25kg (2") to 5000kg (28")
Class 600 Performance Highlights
Face-to-Face (L): From 292mm (2") to 1549mm (28")
Flange Diameter (D): Up to 1073mm for 28"
Weight: Ranging from 25kg (2") to 6500kg (28")
Ordering Information
To provide a precise technical proposal, please specify:
End Connection: Flanged (RF/RTJ) or Butt-Weld (BW)
Material Configuration: Body, Ball, Stem, and Seat materials
Service Media: Gas, Oil, Water, or Corrosive Fluids
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2022
Total Annual:
20Million-50Million
Employee Number:
>50
Ecer Certification：
Verified Supplier
Guoyue Hydraulic Equipment Manufacturing (Jiangsu) Co., Ltd. is a leading manufacturer specializing in High-Quality Hydraulic Cylinders.With over 10 years of industry experience , We have the most advanced oil cylinder buffering technology. We excel in providing comprehensive ODM and ... Guoyue Hydraulic Equipment Manufacturing (Jiangsu) Co., Ltd. is a leading manufacturer specializing in High-Quality Hydraulic Cylinders.With over 10 years of industry experience , We have the most advanced oil cylinder buffering technology. We excel in providing comprehensive ODM and ...
