What types of valves does KR Valve manufacture?

KR Valve manufactures more than 500 valve products, including wafer, lug, concentric and double eccentric butterfly valves, resilient seat, metal seat and knife gate valves, dual disc, swing, lift and ball type check valves, ball valves, hydraulic water control valves such as 200X pressure reducing valves and 100X remote float valves, and Y type strainers.

Which international standards do KR valves follow?

Our range covers common international standards such as DIN F5 face-to-face gate valves, BS5163 resilient seat gate valves, BS5153 dual disc check valves, ANSI flanged strainers and PN16 pressure rated water control valves. Non-standard designs can be engineered to your drawings.

Do you offer OEM valve manufacturing?

Yes. In addition to our own KR brand, we provide OEM services, including customer branding, specified body and seat materials, actuation options and project-specific packaging.

Should I choose a wafer or a lug butterfly valve?

Wafer butterfly valves are lighter and more economical and are clamped between two flanges, making them ideal for standard water and HVAC lines. Lug butterfly valves have threaded lugs that allow dead-end service and removal of downstream piping without draining the whole line, which suits maintenance-critical systems.

How is valve quality controlled before shipment?

Every process is inspected from raw material to finished product, and 100% of finished valves are inspected before dispatch. Production plans and lead times are defined upfront through full-chain supply control.

Wholesale SS CF8/CF8M micro-resistance slow closing check valve Suppliers, Manufacturers

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Wholesale SS CF8/CF8M micro-resistance slow closing check valve Suppliers, Manufacturers

Type：Tilting disc type

Series：HH47X-16C

Size: DN40-DN2000/2”-80”

Pressure rating: PN10/PN16/150LB/300LB

Design standard: EN/DIN/API

Service: OEM&ODM

The stainless steel butterfly-type tilting disc check valve body is integrally cast using 304/316 stainless steel, boasting strong corrosion resistance. The backflow preventer valves is suitable for acid and alkali, seawater, food and pharmaceutical, and mildly corrosive industrial media. It is a dedicated slow-closing one-way valve for seawater desalination, fine chemicals, food and medicine, and environmental protection corrosion pump stations.

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Product Description

Valve Type:	Tilting disc check valve	Structure:	Butterfly type
Standard:	EN/DIN/API	Workmanship:	Investment casting
Sealing direction:	Single-directional	Sealing grade:	Zero leakage
Temperature:	-20°C < T < 120°C	Operation:	Self-starting

Characteristics

This stainless steel tilting disc butterfly check valve is cast from 304/316 stainless steel with superior acid, alkali and seawater corrosion resistance. Eccentric short-stroke disc with external hydraulic buffer achieves staged slow closing to eliminate water hammer and noise. Low flow resistance improves pump efficiency, with soft/metal sealing options. Widely used in seawater desalination, food, pharmaceutical and chemical corrosive pipeline systems.

Advantages

304/316 stainless steel resists seawater, acid and alkali corrosion without rust, perfectly matches food, pharmaceutical, seawater desalination and chemical anti-corrosion pipeline projects.
Short-stroke disc plus hydraulic staged slow closing eliminates water hammer and impact noise, protecting stainless steel pumps and anti-corrosion pipelines from pressure surge damage.
Smooth stainless steel inner surface prevents scaling and silt jamming, avoids medium contamination, stable long-term operation with low maintenance frequency.

Packing

Standard export wooden case packaging

Application Scenarios

This tilted disk check valve is widely used in seawater desalination pump stations, food & pharmaceutical circulating pipelines, chemical acid & alkali medium lines, sewage anti-corrosion systems, pure water treatment, coastal power plant cooling water and fine chemical large-flow pump rooms.

Material of Main Parts

Components name	Valve body	Disc	Seal packing collar	Valve lever	Packing
Material	Cast iron Carbon steel	Cast iron Cast steel Ductile iron	Ding nitrile oil resistant rubber, chloroprene rubber	Stainless steel	Teflon

Main Dimension

DN (mm)	L	H	B1	B2
200	230	550	540	600
250	250	630	600	700
300	270	690	650	740
350	290	780	710	800
400	310	860	770	870
450	330	910	830	920
500	350	980	900	1000
600	390	1070	1090	1250
700	430	1220	1200	1360
800	470	1320	1320	1480
900	510	1430	1420	1580
1000	550	1550	1550	1700
1200	630	1800	1780	1950
1400	710	1980	2000	2175

Frequently Asked Questions (FAQ)

What manufacturing standards does this tilting disc check valve comply with?

This valve is manufactured according to international standards including EN, DIN, and API standards, produced using precision investment casting techniques.

How does the valve eliminate water hammer and operational noise?

The eccentric short-stroke disc works together with an external hydraulic buffer to achieve a staged slow-closing mechanism. This design effectively prevents pressure surges, water hammer, and pipeline impact noise.

What is the operating temperature range and sealing performance?

The valve operates efficiently within a temperature range of -20°C < T < 120°C and delivers single-directional zero-leakage sealing performance.

What materials are used for the main body and internal components?

Depending on application requirements, valve body options include cast iron, carbon steel, or 304/316 stainless steel. Discs are available in cast iron, cast steel, or ductile iron, with stainless steel valve levers and Teflon packing.

Which industrial applications are suitable for this valve?

It is suitable for seawater desalination pump stations, food and pharmaceutical circulating systems, chemical acid/alkali processing lines, sewage anti-corrosion applications, pure water treatment systems, coastal power plant cooling networks, and fine chemical pump rooms.

How is the valve packaged for overseas shipment?

Products are packed using standard export wooden cases to protect against damage during international transport.

Wholesale SS CF8/CF8M micro-resistance slow closing check valve Suppliers, Manufacturers

Product Description

Characteristics

Advantages

Packing

Application Scenarios

Material of Main Parts

Main Dimension

Frequently Asked Questions (FAQ)

What manufacturing standards does this tilting disc check valve comply with?

How does the valve eliminate water hammer and operational noise?

What is the operating temperature range and sealing performance?

What materials are used for the main body and internal components?

Which industrial applications are suitable for this valve?

How is the valve packaged for overseas shipment?

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