GB WCB gate valve

Size1/2″~40″ (DN15~DN1000 mm)

OperatedBevel gear, Pneumatic actuator, Electric actuator

Conection endDouble Flange Type

Conection standardPN10 / PN16 / PN25 / PN40 / PN63/ PN100

Working pressurePN16 / PN25 / PN40 / PN63 / PN100

Body materialWCB

Disc materialWCB

Seat materialCr13

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Product Details

A ‌metal seat gate valve‌ is a specialized industrial valve designed for sealing using metal-to-metal contact between the gate (disc) and the valve seats. Unlike resilient-seated gate valves that use rubber or polymer seals, metal-seated variants rely on precision-machined metal surfaces to achieve closure under demanding conditions.

Product Advantages&Our Service:
1.‌Sealing Mechanism‌
1.1 ‌Metal-to-Metal Contact‌: Both the gate and seats are made of hardened metals (e.g., stainless steel, alloy steel, or carbide-coated surfaces), enabling reliable sealing in high-temperature, high-pressure, or abrasive environments .
1.2 ‌Zero Leakage‌: Engineered for minimal leakage (e.g., ANSI Class V/VI standards), crucial for critical applications like steam systems or hazardous fluids.

2.‌Structural Design‌
2.1‌ Rising/Non-Rising Stem‌: Available in both types.
Rising stem: Stem moves vertically during operation (visible position indicator).
Non-rising stem: Stem rotates without vertical movement (suitable for confined spaces)
2.2‌Wedge or Parallel Gate‌: Typically uses a wedge-shaped gate for tight shutoff, though parallel designs exist for slurry applications .

3.‌Material Composition‌
Common materials include Ductile iron,carbon steel (WCB/WCC), stainless steel (CF8M/CF8), and alloy steels (e.g., STL A216), often hardened via spray welding or heat treatment for wear resistance‌.

4.Pressure Testing Report,3.1 Certificate of Material can be provided.

‌Applications：‌
1.‌ High-Temperature/Pressure‌: Handles steam, thermal oil, and superheated water (>425°C)‌.
2. ‌Abrasive Media‌: Resists erosion from slurries, ash, or petrochemicals with solid particles‌.
3. ‌Critical Infrastructure‌: Used in water supply, power plants, oil/gas pipelines, and chemical processing‌.

Face to face dimension:

DN	mm	15	20	25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000
DN	inch	1/2	3/4	1	1-1/4	1-1/2	2	2-1/2	3	4	5	6	8	10	12	14	16	18	20	24	28	32	36	40
L（PN16)		130	150	160	180	200	250	265	280	300	325	350	400	450	500	550	600	650	700	800	900	1000	1100	1200
L (PN25)		130	150	160	180	200	250	265	280	300	325	350	400	450	500	550	600	650	700	800	900	1000	1100	1200
L (PN40)		130	150	160	180	200	250	280	310	350	400	450	550	650	750	850	950	1050	1150	1350	1450	1650
L (PN63)		170	190	210	230	240	250	280	310	350	400	450	550	650	750	850	950	1050	1150	1350
L (PN100)		170	190	210	230	240	250	280	310	350	400	450	550	650	750	850	950	1050	1150

The data is for reference only, please consult sale@valflovalve.com for details.

QUESTIONS

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GB WCB gate valve

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