Wholesale GGG40 Bronze seat hard seal flange gate valve Suppliers, Manufacturer

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Wholesale GGG40 Bronze seat hard seal flange gate valve Suppliers, Manufacturer

Typeï¼šMetal to metal seated

Seriesï¼šZ45T-16/25Q

Size: DN50-DN1000/2â€-40â€

Pressure rating: PN16/PN25/PN64/150LB/300LB/600LB

Design standard: BS/API/DIN

Service: OEM&ODM

The brass metal hard sealed ductile iron gate valve with ductile iron as the valve body and brass/copper alloy as the sealing surface, combining the high strength of ductile iron with the wear resistance and corrosion resistance of copper, mainly used for fully open/close control of water, steam, oil and other media.

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Product Description

Product Specifications

Valve Type:	Metal seat gate valve	Structure:	Non-rising type
Standard:	EN/API/DIN/GOST	Workmanship:	Investment casting
Sealing direction:	Bidirectional	Sealing grade:	Zero leakage
Temperature:	-30°C < T < 425°C	Operation:	Handwheel

Characteristics

The sealing surface of this GGG40 gate valve is made of brass/bronze alloy, which has high hardness, erosion resistance, and is not easy to scratch. It is suitable for media containing impurities and has a long service life.

Key Advantages

✔

High valve body strength:

The body of this gate valve is made of ductile iron, it has much better strength, toughness, and impact resistance than gray cast iron, and has excellent pressure resistance and water hammer resistance.

✔

Reliable sealing, zero leakage in both directions:

The brass gate valve has metal hard sealed structure, bidirectional sealing, tight opening and closing, meeting strict zero leakage standards.

✔

Easy to open and close:

The stem of this GGG50 gate valve is made of stainless steel, and the valve stem nut is made of brass, which fits smoothly and has low torque. It will not get stuck or bite during long-term use.

Packing & Logistics

Standard export wooden case packaging ensures the safety of the valves during long-distance transportation.

Application Scenarios

The bronze seal ductile iron gate valve is suitable for municipal water supply and drainage, HVAC, fire protection, power, chemical, and water conservancy pipelines, used for opening and closing control of media such as water, oil, steam, etc.

Material Specifications

Valve body/valve cover	Gate board/seat	Stem	Stem nut	Padding	Handwheel
Ductile iron	Brass/Bronze	20Cr13	Aluminum bronze	Graphite asbestos packing	Malleable iron / Ductile Iron

Dimensions

PN (MPa)	DN (mm)	L	D	D1	D2	b	f	N-φd	H	H1	D0
1.6	50	250	160	125	100	16	3	4-φ18	358	438	240
1.6	80	280	195	160	135	20	3	8-φ18	433	528	280
1.6	100	300	215	180	155	20	3	8-φ18	502	620	320
1.6	150	350	280	240	210	24	3	8-φ23	676	847	360
1.6	200	400	335	295	265	26	3	12-φ23	820	1039	400
2.5	100	300	230	190	160	24	3	8-φ23	502	620	320
2.5	200	400	360	310	278	34	3	12-φ25	820	1039	400
4.0	100	350	230	190	160	24	3	8-φ23	552	671	360

* Full range of sizes from DN15 to DN600 available as per technical data sheets.

Frequently Asked Questions

Q1: What are the main applications for the bronze seal gate valve? A: It is widely used in municipal water supply, HVAC systems, fire protection pipelines, and chemical or power industries for controlling water, oil, and steam media.

Q2: What is the advantage of a brass/bronze seat? A: The brass/bronze alloy provides high hardness and excellent erosion resistance, making the valve durable even in media containing impurities.

Q3: Can this valve handle bidirectional flow? A: Yes, this valve features a bidirectional sealing structure that ensures zero leakage in both flow directions.

Q4: What material is used for the valve body? A: The body is made of GGG40/GGG50 ductile iron, which offers superior strength and impact resistance compared to standard gray cast iron.

Q5: Is the valve easy to operate manually? A: Yes, the stainless steel stem and aluminum bronze stem nut provide a smooth fit with low torque, preventing the valve from getting stuck over long-term use.

Q6: What is the maximum working temperature for this metal seat valve? A: This metal seat gate valve is designed to operate within a temperature range of -30°C to 425°C.