FLOMECH VALVES
GST : 19AFQPP1276G1ZZ

Lined Swing Check Valve

Name: Lined Swing Check Valve
Brand: FLOMECH VALVES

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MOQ : 1 , , Piece

Lined Swing Check Valve Specification

Connection Type
Flanged Ends, ANSI B16.5 / DIN Standards

Material
Ductile Iron/Carbon Steel body with PTFE/FEP/PFA Lining

Valve Size
1 to 12 (DN25 to DN300)

Structure
Swing Check

Sealing
PTFE/Rubber Lined

Application
Industrial Fluid Handling, Corrosive Chemical Processes, Water Treatment Plants

Voltage
Not Required

Type
Lined Swing Check Valve

Power
Manual

Pressure
PN10 / PN16

Media
Acids, Alkalis, Water, Gases

Port Size
DN25 to DN300

Temperature
Up to 180C

Disc
PTFE Lined / Metal Encapsulated

Pin
Stainless Steel

Lined Swing Check Valve Trade Information

Minimum Order Quantity
1 , , Piece

Supply Ability
10 Pieces Per Day

Delivery Time
15 Days

About Lined Swing Check Valve

Lined Swing Check Valve

Relying on our state-of-the-art manufacturing set up and diligent professionals, we are manufacturing, exporting and supplying an optimum quality Lined Swing Check Valve. This valve is manufactured using quality raw materials in our sophisticated production unit to ensure. Withstand high pressure, the offered valve is highly demanded in several industries such as petrochemical, marine, oil and gas, pharmaceutical, and many others. In addition, our honorable customers can avail this Lined Swing Check Valve from us at negotiable prices.

Features:

Dimensional accuracy
Sturdiness
Rust proof
Easy installation

Other Info:

Bolted Bonnet, Swivel Type
Face to Face dimensions according to as per ANSI B16.10
Flange Dimension as per ANSI B16.5
Alternative Flanges can be provided.

Nomenclature And Materials

Body	Cast Steel ASTM A216 Gr. WCB Stainless Steel ASTM A351 CF - 8/8M
Cover
Disc
Hinge
Seat Ring	Stainless Steel CA - 15/CF - 8 / 8M
Disc Ring	13% CR. Deposited
Hinge Pin	Stainless Steel AISI - 410 / 304
Gasket	Sprila Wound
Bolts & Nuts	Carbon Steel / SS - 304

Hydrostatic Test Pressure in Kg/Cm² (PSI)
Class	Shell	Seat
150	30 (425)	20 (285)
300	77 (1100)	51 (730)

Dimensions Are In MM

Mark	Size	50	65	80	100	125	150	200	250	300	350	400	450	500	600
Class-150 Class-300	A A	203	216	241	292	333	356	495	622	699	787	864	978	978	1295
Class-150 Class-300	A A	267	292	318	356	400	445	533	622	711	838	864	978	1016	1346
ANSI 16.5 Class-150	C D b k d₄ d₂ z	130	210	248	285	405	394	483	533	591	667	691	733	775	911
		152	178	191	229	254	279	343	406	483	533	597	635	699	813
		19	22	24	24	24	25	29	30	32	35	37	40	43	48
		121	140	152	2191	216	241	298	362	432	476	540	578	635	749
		92	105	127	157	186	216	270	324	381	413	470	584	584	692
		19	19	19	19	22	22	22	25	25	29	29	32	32	35
		4	4	4	8	8	8	8	12	12	12	16	16	20	20
ANSI B16.5 Class-300	D b k d₄ d₂ z	165	191	210	254	279	318	381	445	521	584	648
		22	25	29	32	35	37	41	48	51	54	57
		127	149	168	200	235	270	330	387	451	514	572
		92	105	127	157	186	216	270	324	381	413	470
		19	22	22	22	22	22	25	29	32	32	35
		8	8	8	8	8	12	12	16	16	20	20

Testing as per API 598/BS : 5146
Outside lever & Weight type can be provided.
By Pass / Gear / Actuator can provide.

Superior Corrosion Resistance

With its advanced PTFE, FEP, or PFA lining, this swing check valve delivers excellent protection against highly corrosive fluids such as acids and alkalis, making it a trusted solution for challenging chemical and industrial environments.

Wide-Ranging Applications

Designed to meet the needs of industrial fluid handling and water treatment plants, the valve is suitable for various media including water, gases, and aggressive chemicalsthanks to its sturdy construction and versatile sealing options.

FAQs of Lined Swing Check Valve:

Q: How does a lined swing check valve function in industrial fluid handling?

A: A lined swing check valve allows fluid to flow in one direction and automatically prevents backflow. The swing disc swings open when fluid moves forward and closes when flow reverses, ensuring non-return operation. Its lining enhances resistance to corrosive and abrasive fluids typical in industrial settings.

Q: What makes PTFE/FEP/PFA lining beneficial for corrosive chemical processes?

A: PTFE, FEP, and PFA linings offer exceptional chemical inertness, protecting the valve body from corrosive acids and alkalis. This ensures long service life, minimal maintenance, and safety when handling aggressive chemicals.

Q: When should a PTFE or rubber-lined swing check valve be used over an unlined valve?

A: A PTFE or rubber-lined swing check valve is recommended when the fluid media contains corrosive chemicals, or when contamination must be avoided. Lined valves are preferred in applications such as chemical processing or water treatment where fluid purity and equipment longevity are critical.

Q: Where are lined swing check valves commonly installed?

A: Lined swing check valves are commonly installed in pipelines of chemical industries, water treatment plants, and any facility managing corrosive or hazardous fluids. Their flanged ends and standard-compliant design allow integration with ANSI B16.5 or DIN pipeline systems.

Q: What is the process for selecting the appropriate valve size and connection type?

A: Selecting the correct valve size and connection involves matching the valves DN (diameter nominal) size range, available from DN25 to DN300, to the flow requirements and pipeline diameter. The connection type, typically flanged ends per ANSI B16.5 or DIN standards, should correspond with existing system specifications.

Q: How do users benefit from stainless steel pins and encapsulated discs?

A: Stainless steel pins provide durable hinge action and corrosion resistance, while metal-encapsulated or PTFE-lined discs offer reliable performance and extended service life, even in harsh media, ensuring consistent non-return operation and reduced maintenance.