CF3M Wafer Dual Plate Check Valve

Pressure Rating PN16 (Equivalent to Class 150)
Nominal Size DN50 – DN600 (NPS 2″ – 24″) Specify as required
End Connection Wafer Type / Lug Type Select as required
Face to Face Dimension API 594 / EN 558 Series 20
Sealing Type Metal-to-Metal Hard Seal

문의하기

Dual Plate Wafer Check Valve Technical Data Sheet

General Specifications

Item	사양
밸브 유형	Wafer Dual Plate Check Valve
압력 등급	PN16 (Equivalent to Class 150)
공칭 크기	DN50 – DN600 (NPS 2″ – 24″) Specify as required
End Connection	Wafer Type / Lug Type Select as required
Face to Face Dimension	API 594 / EN 558 Series 20
Sealing Type	Metal-to-Metal Hard Seal
Medium	Water, Oil, Gas, and Corrosive Media (Compatible with CF3M)
Operating Temperature	-29°C to +425°C (-20°F to +800°F)
본체 재질	ASTM A351 Grade CF3M (Equivalent to 316L Stainless Steel)
Disc (Plate) Material	ASTM A351 Grade CF3M (Equivalent to 316L Stainless Steel)
Shaft / Hinge Pin Material	ASTM A276 Type 316 / 316L Stainless Steel
Seat / Sealing Surface	Hard Facing (Stellite / Cobalt-based Alloy) on Body

Bill of Materials (ASTM Standards)

Part Name	재료	Material Grade / Specification	ASTM Standard
몸	Austenitic Stainless Steel	CF3M	ASTM A351
Discs (Dual Plate)	Austenitic Stainless Steel	CF3M	ASTM A351
Shaft / Hinge Pin	Precipitation Hardening / SS	17-4PH / 316 SS	ASTM A564 / A276
Seat Ring (Integral)	Hardfaced Alloy	Stellite (or equivalent)	–
Spring (Torsion)	High-Temperature Alloy	Inconel X-750 / 17-7PH	ASTM A638 / A693
Locating Dowel Pin	Stainless Steel	Type 316	ASTM F593
Gasket / O-Ring (Opt.)	Flexible Graphite / Viton	–	–

Technical Parameters & Performance

Item	Unit	Value / Description
Pressure Testing		API 598 / ASME B16.34
– Shell Hydrostatic Test	psi (MPa)	1.5 x PN (Appx. 348 psi / 2.4 MPa)
– High Pressure Seat Test	psi (MPa)	1.1 x PN (Appx. 255 psi / 1.76 MPa)
– Low Pressure Pneumatic Test	psi (MPa)	80 psi (0.6 MPa)
Operational Limits
– Max. Flow Velocity	ft/s (m/s)	Water: ≤ 16 ft/s (5 m/s); Gas: ≤ 164 ft/s (50 m/s)
– Closure Pressure		Backpressure prevents reverse flow. (Seat Leakage: Per API 598 / ISO 5208 Rate D for Metal Seats)
Disc Action		Spring-assisted automatic closure. Recommended installation on horizontal lines with shaft vertical, or vertical lines with upward flow.

Dimensions & Connection Data (Wafer Type, Units: mm / inches)

Note: Dimensions are for reference. Please refer to the specific manufacturer’s drawing for exact fit.

Size DN (NPS)	Valve Length L (mm)	Flange Dia. D (mm)	Bolt Circle K (mm)	Recommended Bolts	Approx. Weight (kg)
50 (2″)	43	165	125	4 x M16	~2.5
80 (3″)	64	200	160	8 x M16	~5.0
100 (4″)	64	220	180	8 x M16	~7.5
150 (6″)	76	285	240	8 x M20	~14.0
200 (8″)	95	340	295	12 x M20	~25.0
250 (10″)	114	405	355	12 x M24	~38.0
300 (12″)	114	460	410	12 x M24	~55.0
350 (14″)	127	520	470	16 x M24	~75.0
400 (16″)	140	580	525	16 x M27	~95.0

Applicable Standards

Design & Manufacture: API 594, ASME B16.34
대면: API 594, ISO 5752 Series 20
Flange Dimensions: ASME B16.5 (for Class 150), ASME B16.47
Pressure Testing: API 598, ISO 5208
Material (Body/Disc): ASTM A351 Grade CF3M
Material (Other): ASTM A276, ASTM A564, etc.
Marking: MSS SP-25

비고

Material Characteristics: ASTM A351 CF3M is the cast equivalent of UNS S31603 (316L) . It features ultra-low carbon content, providing excellent resistance to intergranular corrosion after welding and in chloride environments.
Metal Seated Feature: This valve features a Metal-to-Metal Hard Seal, making it suitable for high-temperature applications. The allowable leakage rate typically conforms to ISO 5208 Rate D(or API 598) for metal seats (a minute leakage is permissible; zero leakage is generally not guaranteed for standard metal seats).
Flow Direction: A permanent flow directional arrow is cast or marked on the valve body. Installation must align with the pipeline flow direction.
Installation Guidance: Best installed in horizontal pipelines with the shaft in a vertical position. For vertical installations, flow must be in the upward direction to allow the discs to open properly.

보증:

SAVVY VALVES는 탁월한 제품 품질과 안심할 수 있는 애프터서비스를 제공하기 위해 최선을 다하고 있습니다. 당사 밸브는 최소 12개월의 서비스 수명을 보장하며, 이 기간 동안 필요한 모든 예비 부품과 자세한 유지보수 지침을 무상으로 제공합니다. 보증 기간 내에 인위적인 손상이 아닌 다른 원인으로 인한 손상이 발생할 경우, 무상으로 부품을 교체하고 전문 기술 지원을 제공합니다. 보증 기간이 만료된 후에는 예비 부품 비용만 지불하시면 되며, 할인된 유지보수 서비스 혜택도 누리실 수 있습니다. 당사의 목표는 신뢰할 수 있는 품질과 포괄적인 애프터서비스를 통해 고객의 운영 비용을 절감하고 생산 효율성을 향상시키는 것입니다. 기술 문의나 유지보수가 필요하시면 언제든지 전문가 팀이 신속하게 대응하여 밸브 시스템이 항상 최적의 성능을 유지하도록 보장합니다.