Class 250 Swing Check Valve

Model：CV-01
Date Updated: August 13, 2026
Prepared by: Swing Check Valve Technical Department

Categories:

Gate Valve

Compliance Credentials: Strictly certified to UL 260 and FM standards for high-hazard critical infrastructure

Class250 Swing Check Valve

TEL：

0086-18600252968

MESSAGE

Class 250 Swing Check Valve

▏Product Description

The Class 250 Swing Check Valve (Model CV-01) by Ningjin APC Industries is a robust, high-performance solution engineered for reliable backflow prevention in demanding industrial fluid control systems. Built in strict accordance with MSS SP-71 design standards, this valve ensures operational longevity and superior sealing integrity. With our comprehensive OEM capabilities, we provide tailored industrial water and wastewater solutions with a standard delivery cycle of 45 working days, meeting the precise technical specifications required for complex engineering projects.

▏Technical Features

Parameter	Specification
Size	DN50-DN300 / 2"-12"
Working Pressure	Class 250
Design Standard	MSS SP-71
Test Standard	API 598
Flange Standard	ASME B16.2(250LB)
Face to Face Standard	ASME B16.10(250LB)
Working Temperature	-20°C to 180°C

▏Valve Material List

NO.	Part	Material
1	Bolts	Steel
2	Identification Plate	Aluminium
3	Bonnet	Cast Iron
4	Body Gasket	Graphite
5	Nuts	Steel
6	Side Plug	Brass
7	Gasket	Fiber
8	Hanger Pin	Brass
9	Hanger	Ductile Iron
10	Disc Ring	Cast Bronze
10'	Disc	Cast Iron
11	Washer	Steel
12	Split Pin	Stainless Steel
13	Seat Ring	Cast Bronze
14	Disc Nut	Steel
15	Body	Cast Iron
16	Stud Bolt	Steel

▏Dimensions

DN	INCH	L	Dg	D	b	ANSI 300		H
						Dk	n-d
50	2"	267	106.5	165	22.3	127	8-19	113
65	2.5"	292	125.5	191	25.4	149.2	8-22	133
80	3"	317.5	144.5	210	28.6	168.3	8-22	144
100	4"	356	176.5	254	31.8	200	8-22	168
125	5"	400	211.5	279	35	235	8-22	198
150	6"	444.5	246.5	318	36.6	269.9	12-22	217
200	8"	533	303.5	381	41.3	330.2	12-25	261
250	10"	622	357.5	445	47.6	387.4	16-29	287
300	12"	711	418	521	50.8	450.8	16-32	319

▏Frequently Asked Questions

What is the primary design standard for the Class 250 Swing Check Valve CV-01?

The Class 250 Swing Check Valve (CV-01) is strictly manufactured according to the MSS SP-71 design standard, ensuring optimal performance and structural consistency for industrial fluid control applications.

What testing protocols are applied to these industrial swing check valves?

Every Class 250 Swing Check Valve undergoes rigorous testing in compliance with the API 598 standard. This testing procedure guarantees that each unit meets stringent industrial requirements for pressure integrity and leakage control.

Does Ningjin APC Industries provide customization for Class 250 Swing Check Valve technical requirements?

Yes, Ningjin APC Industries offers comprehensive customization and OEM services. For detailed technical specifications or to discuss project-specific modifications for the Class 250 Swing Check Valve, please consult our engineering department for tailored manufacturing support.

What is the temperature operating range for the CV-01 series?

The CV-01 Swing Check Valve is engineered to operate efficiently within a temperature range of -20°C to 180°C, making it suitable for a diverse array of general fluid and industrial water treatment environments.

What is the standard delivery timeframe for industrial swing check valve orders?

For standard industrial orders, Ningjin APC Industries maintains a reliable production and delivery cycle of 45 working days, ensuring your project timeline is respected without compromising valve manufacturing quality.

Product message