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API 600 Gate Valve China Manufacturer Zero Fugitive Emission Bellows Seal API 6D Certified

Name: API 600 Gate Valve China Manufacturer Zero Fugitive Emission Bellows Seal API 6D Certified
Brand: WENZHOU AEA VALVE CO., LTD.
SKU: kmMUqVlohghu
Price: 9.50 USD
Availability: InStock

US$10.00

1-49 Sets

US$9.80

50-99 Sets

US$9.50

100+ Sets

Port:

Shanghai, China

Production Capacity:

50000 Sets/Year

Payment Terms:

L/C, T/T, D/P, Western Union, Paypal, Money Gram

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WENZHOU AEA VALVE CO., LTD.

Zhejiang, China

Last Login Date:

Jul 27, 2025

Business Type:

Manufacturer/Factory

Main Products:

Ball Valve, Floating Ball Valve, Trunnion Mounted Ball Valve, Gate Valve, Check Valve, Fully Welded Ball Valve, GOST Valve, Fixed Cone Valve, Plunger Valve, Russian Valve

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Product Description

Company Info

Basic Info.

Model NO.

Z41

Media

Gas

Temperature

Ordinary Temperature

Type

Straight-through

Material

Carbon Steel

Connection Form

Flange

Pressure

High Pressure

Actuator

Manual

Seal Surface

Wedge Gate Valve

Thread Position of Valve Rod

Outside Gate Valve

Usage

Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control

Standard

DIN

Application

Industrial Usage, Water Industrial Usage, Household Usage

Trademark

Customized or AEA

Transport Package

Standard Seaworthy Case

Specification

1000*1000*800mm

Origin

China

HS Code

848180

Product Description

Premium Cast Steel Gate Valve: Robust Flow Control for Critical Industrial Applications

AEA Cast Steel Gate Valve delivers unmatched reliability and longevity in critical flow isolation. Designed to exceed API, ASME, and ISO standards, this valve features innovative construction for zero-leak performance and minimal maintenance across oil & gas, petrochemical, power generation, and marine applications. Its superior metallurgy, rigorous testing protocols, and advanced sealing technology ensure operational safety and cost efficiency in the world's most challenging services.
NEWAY's Revolutionary Design Features:

Bolted Bonnet Connection: Ensures superior body-bonnet sealing integrity under extreme pressure cycling and thermal shock, simplifying maintenance and inspection.
Flexible Wedge Design: Advanced elastic gate construction automatically compensates for seat wear and thermal expansion/contraction, guaranteeing bubble-tight shut-off throughout valve lifespan.
Fully Renewable Seats: Hard-faced or Stellite6 overlayed seats are easily replaceable without specialized tools, drastically reducing downtime and life-cycle costs.
OS&Y (Outside Screw & Yoke): Provides clear visual stem position indication and protects critical stem threads from process fluid corrosion.
Cryogenic Extended Bonnet (Optional): Insulates stem packing, prevents ice formation, and ensures reliable operation down to -196°C (-320°F) for LNG, liquid nitrogen, and ethylene services.

Table 1: Component Material Specification

Component	Standard Material (ASTM)	Common Alternative Materials	Special Applications (Hard-facing Coating)
Valve Body/Bonnet	A216 Gr. WCB	LCB (-46°C), WC6, WC9, C5, C12	-
Gate (Disc)	WCB + 13% Cr Stainless Trim	WC6, WC9, CF8M, Monel, Duplex	Stellite6 overlay (Face), Tungsten Carbide Spray
Seats	13% Cr Stainless Steel	Stellite6, 316 SS, Inconel	Full Stellite6 Overlay, Tungsten Carbide
Stem	A182 F6a (13% Cr)	F304, F316, 17-4PH, Inconel 718	Nitride Surface, Stellite6 Cladding
Bonnet Bolting	A193 B7	B7M (Sour Service), B8 (304), B8M (316)	-
Gasket	SS Flex Graphite Spiral Wound	RTJ Metal (Soft Iron, 316L)	-
Packing	Flexible Graphite	PTFE,Fire-Safe Designs	-
Handwheel	Ductile Iron (A536)	Carbon Steel (A216 WCB)	-

Table 2: Manufacturing & Design Standards Compliance

Standard Category	Key Standards	Compliance Level
Design	API 600, API 602 (Compact), ASME B16.34, ISO 10434	Full Compliance
Face-to-Face	ASME B16.10, API 600	Full Compliance
Flange Dimensions	ASME B16.5 (NPS 1/2" to 24"), ASME B16.47 Series A/B	Full Compliance
Flange Drilling	ASME B16.5 (RF, RTJ), ASME B16.47	Full Compliance
Butt Weld Ends	ASME B16.25	Full Compliance
Testing	API 598, ISO 5208 (Leakage Rates), API 6D (Optional)	Full Compliance
Fire Safe	API 607, API 6FA, ISO 10497	Certified Options
NACE / Sour Serv.	MR0175/ISO 15156, NACE MR0103	Compliant Materials

Table 3: Rigorous Valve Testing Protocols & Standards

Test Category	Specific Test	Applicable Standard(s)	Typical Acceptance Criteria
Shell Test	Hydrostatic	API 598, ISO 5208	1.5 x PN, No visible leakage
Seat Test	Hydrostatic (Low Press)	API 598, ISO 5208	1.1 x PN, Max allowable leakage per class (A/B/D)
Seat Test	Pneumatic	API 598 (Optional), Customer	Bubble-tight (Zero leakage) common for low-pressure gas
High Press Seat	Hydrostatic (High Press)	API 598	As per shell test pressure for unidirectional valves
Material Certs	Chemical Analysis (PMI)	ASTM E1476, EN 10204 3.1/3.2	Meets specified ASTM/ASME grade requirements
Mechanical Props	Tensile, Yield, Elongation	ASTM A370, ASTM E8/E8M	Meets specified ASTM/ASME grade requirements
Hardness	Brinell/Rockwell Testing	ASTM E10, ASTM E18	Body/Bonnet: HB 137-174 (WCB), Trim as per spec
Low Temp Impact	Charpy V-Notch (CVN)	ASTM A370, ASTM E23	LCB: Min 20J @ -46°C, Special grades higher/lower temps
Microstructure	Metallographic Examination	ASTM E3, ASTM E407, ASTM E112	No detrimental phases, grain size rating
Corrosion Test	Intergranular Corrosion	ASTM A262 Practice E (Huey)	Max corrosion rate as per spec (e.g., <0.5 mm/yr)
Special Tests	Cryogenic Seat Test	BS 6364, Shell MESC SPE 77/200	Test at operating temp (e.g., -196°C), bubble-tight
Special Tests	Fugitive Emissions (FE)	ISO 15848-1 (Class B/C), TA-Luft	Tightness class required (e.g., Class B for ISO 15848)
Special Tests	NACE Hydrogen Test	NACE TM0284 (HIC)	CLR ≤ 10%, CTR ≤ 1.5%, CSR ≤ 0.5%
Special Tests	SSC/SCC Test	NACE TM0177 (Method A/B/D), TM0316	No failure after 720 hrs at specified stress level

Table 4: Comprehensive Cast Steel Gate Valve Dimensions (ASME B16.10, B16.5, API 600)
(All dimensions in mm. Abbreviations: RF = Raised Face, RTJ = Ring Type Joint, PCD = Pitch Circle Diameter, Thk = Thickness)

Pressure Class	Nominal Size (DN / NPS)	Face-to-Face (ASME B16.10)	Flange OD (ASME B16.5)	RF THK	RTJ Groove	Bolt Data (Qty × Dia)	PCD	Min Bore ID	Stem Dia
CLASS 150	50 / 2"	178	120	16	R21	4 × 19	102	52	22
	80 / 3"	203	127	19	R24	4 × 19	127	79	25
	100 / 4"	229	152	24	R27	8 × 19	152	102	28
	150 / 6"	267	241	29	R33	8 × 22	229	154	32
	200 / 8"	292	298	35	R39	8 × 25	279	202	35
	250 / 10"	330	362	41	R45	12 × 29	343	254	40
	300 / 12"	356	432	46	R51	12 × 32	400	303	45
	400 / 16"	406	540	55	R60	16 × 35	495	387	55
	500 / 20"	457	635	65	R70	20 × 35	584	489	65
	600 / 24"	508	749	75	R80	20 × 41	686	591	70
CLASS 300	50 / 2"	216	120	22	R24	4 × 19	102	52	25
	80 / 3"	241	133	26	R27	4 × 22	127	79	28
	100 / 4"	283	152	29	R30	8 × 22	152	102	32
	150 / 6"	305	241	36	R37	8 × 25	229	154	38
	200 / 8"	356	298	43	R43	12 × 29	279	202	45
	250 / 10"	432	362	51	R49	12 × 32	343	254	50
	300 / 12"	495	432	56	R55	16 × 32	400	303	55
	400 / 16"	597	540	70	R67	16 × 41	495	387	65
	500 / 20"	673	635	84	R79	20 × 48	584	489	75
	600 / 24"	762	749	97	R91	20 × 54	686	591	85
CLASS 600	50 / 2"	216	133	27	R27	4 × 22	102	52	28
	80 / 3"	241	152	32	R30	4 × 25	127	79	32
	100 / 4"	283	190	37	R34	8 × 29	152	102	38
	150 / 6"	305	267	47	R42	8 × 32	229	154	45
	200 / 8"	356	330	55	R49	12 × 35	279	202	50
	250 / 10"	432	387	64	R56	12 × 41	343	254	60
	300 / 12"	495	451	73	R63	16 × 41	400	303	65
	400 / 16"	597	540	92	R78	16 × 54	495	387	80
	500 / 20"	673	648	108	R94	20 × 60	584	489	90
	600 / 24"	762	775	127	R110	20 × 67	686	591	100
CLASS 900	50 / 2"	241	152	35	R37	4 × 29	102	52	30
	80 / 3"	283	190	43	R45	4 × 35	127	79	35
	100 / 4"	305	229	51	R53	8 × 35	152	102	40
	150 / 6"	356	318	62	R64	8 × 41	229	154	50
	200 / 8"	432	381	76	R76	12 × 48	279	202	60
	250 / 10"	508	451	91	R89	12 × 54	343	254	70
	300 / 12"	559	521	103	R102	16 × 54	400	303	80
	400 / 16"	711	610	132	R129	16 × 67	495	387	95
	500 / 20"	864	718	162	R155	20 × 73	584	489	110
	600 / 24"	940	838	188	R181	20 × 80	686	591	125
CLASS 1500	50 / 2"	260	162	35	R37	4 × 29	102	52	35
	80 / 3"	292	190	43	R45	4 × 35	127	79	40
	100 / 4"	330	229	51	R53	8 × 35	152	102	45
	150 / 6"	381	318	62	R64	8 × 41	229	154	55
	200 / 8"	403	381	76	R76	12 × 48	279	202	65
	250 / 10"	419	451	91	R89	12 × 54	343	254	75
	300 / 12"	457	521	103	R102	16 × 54	400	303	85
	400 / 16"	502	610	132	R129	16 × 67	495	387	100
	500 / 20"	549	718	162	R155	20 × 73	584	489	115
	600 / 24"	600	838	188	R181	20 × 80	686	591	130
CLASS 2500	50 / 2"	292	190	54	R56	4 × 41	127	52	40
	80 / 3"	330	229	64	R67	4 × 48	152	79	45
	100 / 4"	356	273	76	R80	8 × 48	178	102	50
	150 / 6"	381	368	98	R102	8 × 54	229	154	60
	200 / 8"	419	451	119	R124	12 × 60	279	202	70
	250 / 10"	457	540	141	R146	12 × 67	343	254	80
	300 / 12"	502	610	164	R169	16 × 67	400	303	90
	400 / 16"	610	737	203	R208	16 × 80	495	387	110
	500 / 20"	660	838	242	R247	20 × 80	584	489	130
	600 / 24"	711	990	283	R288	20 × 89	686	591	150

Key Notes:

Standards Compliance:
- Face-to-Face: ASME B16.10 (Gate Valves)
- Flange Dimensions: ASME B16.5 (NPS ½" to 24")
- Bore ID: API 600 / ASME B16.34 (Minimum values shown)
- RTJ Grooves: ASME B16.5 Ring Numbers (e.g., R21, R24)
Design Variations:
- Stem Diameter: Increases with pressure/size for enhanced torque resistance.
- Bolt Data: Metric equivalents of ASME B16.5 imperial specs (e.g., 19mm = ¾").
- Class 2500: Dimensions follow ASME B16.5 and MSS SP-44 for flanges; face-to-face per manufacturer standards.
Special Cases:
- Extended Bonnets: Add 150-300mm to face-to-face for cryogenic valves (e.g., LNG service).
- Full Bore Design: Bore ID = pipe ID (specify when ordering).

Full dimension tables for all classes/sizes available in technical datasheets (API 600 compliant).

Advanced Surface Engineering & Treatments:

Tungsten Carbide (WC) Spray Coating: Applied to gate and seat sealing surfaces for severe abrasive slurry services (e.g., mining, coal water), increasing wear resistance 10x over standard hard facing.
Stellite6 & 21 Overlay Welding: Critical wear surfaces (seat rings, gate faces, stem tips) are fusion-welded with cobalt-chromium alloys for superior galling resistance, high-temperature hardness retention, and corrosion resistance in steam and chemical duty.
Localized Corrosion Resistant Alloy (CRA) Cladding: 316L, Inconel 625, or Duplex stainless steel weld overlay applied to body cavities, ports, and bore areas for specific corrosive media (H2S, CO2, chlorides) avoiding costly full CRA body construction.
Deep Cryogenic Treatment (-196°C): Stabilizes austenitic microstructure in low-temperature carbon steel grades (LCB, LC2, LC3), preventing embrittlement and ensuring impact toughness for LNG, liquid oxygen, and ethylene applications.
Stem Nitriding/Carburizing: Surface hardening processes dramatically increase stem surface hardness (HRC 60+) for superior resistance to wear and scoring, especially critical in high-cycle or high-pressure differential applications.
Electroless Nickel Plating (ENP): Applied to bolting and internal non-critical components for uniform corrosion protection in mildly corrosive environments or for galling prevention.

Proven Applications & Industry Case Studies:

High-Pressure Steam Isolation (Power Plants): Class 900 WCB valves with Stellite6 seats/gate and flexible wedges isolate main steam lines (540°C, 150+ bar) in coal-fired and CCGT plants. Proven zero leakage after 50,000+ cycles. Keywords: high pressure steam valve, power plant isolation valve, boiler feedwater.
Sour Gas Wellhead Manifolds (Oil & Gas): Class 1500 LCC valves with NACE MR0175-compliant trim (F6a stem, Stellite6 seats), full PMI, HIC/SSC testing, and fire-safe design. Controls flow in high-H2S (15%)/CO2 fields. Keywords: sour service gate valve, wellhead manifold valve, NACE MR0103.
Refinery Crude Unit Charge Pumps: Class 300 WC6 valves with integral bypass, OS&Y, and flexible graphite packing. Handles high-temperature crude (350°C+) with thermal cycling reliability. Keywords: refinery gate valve, high temperature valve, API 600.
Cryogenic LNG Loading Arms: Class 150 LCB valves with extended bonnets (ASTM A352 Gr. LCB), deep cryogenic treatment, and low-emission packing (ISO 15848-1 Class B). Ensures safe transfer at -162°C. Keywords: cryogenic gate valve, LNG valve, extended bonnet.
Seawater Cooling Systems (Desalination/Ships): Class 150 CF8M valves with full Cavitec coating or 6Mo overlay on critical wetted parts. Resists pitting/crevice corrosion in chlorides. Keywords: seawater gate valve, duplex stainless valve, corrosion resistant.
Mining Slurry Isolation: Class 150 WCB valves with full bore, tungsten carbide coated gate/seats, and reinforced stem. Controls abrasive silica sand and iron ore slurry flows. Keywords: slurry gate valve, mining valve, abrasion resistant.
Chemical Processing Corrosive Media: Class 300 C5/C12 valves or WCB with 316L/Alloy 20 cladding handle concentrated sulfuric acid, caustic, and solvent streams. Keywords: chemical gate valve, alloy 20 valve, sulfuric acid valve.
Hydrogen Generation & Fueling Stations: Class 600 valves with H2-embrittlement resistant materials (e.g., A182 F51/F53), low fugitive emissions packing, and fire-safe certification. Keywords: hydrogen service valve, H2 valve, clean energy valve.
Pulp & Paper High-Consistency Stock: Class 150 valves with wear-resistant trim and smooth bore prevent fiber build-up in stock flow control. Keywords: pulp and paper valve, stock valve.
High-Purity Water (Pharma/Food): Class 150 CF8M valves, electropolished internals, 3A compliant packing, zero dead-leg design for USP WFI and clean steam. Keywords: sanitary gate valve, high purity water valve, 3A compliant.

Single Disc Gate Valve vs. Double Disc Gate Valve:
"Understanding the difference between single disc gate valves and double disc gate valves is key for optimal flow control. Our cast steel gate valves feature robust single disc designs, offering a compact and cost-effective solution for standard industrial valve applications requiring reliable on/off service. For more demanding high pressure and high temperature systems where maximum sealing performance and minimized risk of seat or disc binding are critical, consider our double disc variants. Double disc gate valves provide superior tight shut-off, even bidirectional sealing, and often require less operating torque, enhancing durability and reducing long-term maintenance needs across various industrial applications."

Discover the optimal cast steel gate valve solution for your high pressure, high temperature, or critical shut-off applications - explore our range of reliable and durable industrial valves today!

Address: Dong′ou Industrial, Oubei Town, Wenzhou, Zhejiang, China

Business Type: Manufacturer/Factory

Business Range: Construction & Decoration, Industrial Equipment & Components, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Tools & Hardware

Management System Certification: ISO 9001, ISO 9000, ISO 14001, ISO 14000, OHSAS/ OHSMS 18001

Main Products: Ball Valve, Floating Ball Valve, Trunnion Mounted Ball Valve, Gate Valve, Check Valve, Fully Welded Ball Valve, GOST Valve, Fixed Cone Valve, Plunger Valve, Russian Valve

Company Introduction: API 6D Certified Industrial Valve Manufacturer Since 2005

AEA VALVE, As a premier industrial valve producer with 20 years of expertise, we specialize in precision-engineered high-pressure valves, cryogenic valves, and corrosion-resistant alloy valves for extreme service conditions. Our product range encompasses 8 critical valve categories:

Ball & GGC Valves (Class 150-2500)

GOST 33259 Valves (EAC Custom Union Certified)

Plunger Valves & Fixed Cone Valves for Water treatment

Valve Components: Ball, Body, Cover, Seat Ring, Stem

Manufacturing Excellence & Quality Assurance

20, 000 sqm Advanced Production Base (6 Dedicated Workshops)

Production Equipment:

CNC Machining Centers; Heavy-Duty Vertical Lathes; Automated Welding Stations; Robotic Polishing Lines

Testing Infrastructure:

High-Pressure Test Benches (ASME B16.34); Cryogenic Chambers (-196 deg C); Hardness Testers (Rockwell C Scale); Tensile Strength Machines (ISO 6892-1); Spectrometers (PMI Analysis); Fugitive Emission Testing (ISO 15848-1)

Certified Quality Systems:

API Q1 / ISO 9001: 2025

CE/PED 2014/68/EU

EAC TR CU 010/2011

SIL 3 Safety Valves (IEC 61508)

Global Solutions Capability

Exporting European-standard valves to 30+ countries including:

Oil & Gas: Shell, TotalEnergies-approved API 6D trunnion ball valves

Cryogenic Applications: LNG terminals (-196 deg C), liquid nitrogen valves

Corrosive Media: Super duplex valves (UNS S32750) for seawater injection

Power Generation: ASTM A217 WC9 turbine gate valves

Water Treatment: Plunger Valve & Fixed Cone Valves

Engineering Support:

CFD Flow Simulation (FEA Analysis)

Material Selection Advisory (NACE MR0175 Compliance)

Rapid Prototyping (15-day lead time)

Submit Your Valve Specifications Today - Receive a Data-Driven Solution Proposal within 24 Hours with Lifetime Quality Guarantee.

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