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.

OEM Lug type pneumatic knife gate valve stainless steel material Suppliers, Manufacturers

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OEM Lug type pneumatic knife gate valve stainless steel material Suppliers, Manufacturers

Type：Lug

Series：PZ673H-16P

Size: DN40-DN600/2”-24”

Pressure rating: PN6/PN10/PN16/5K/10K

Design standard: API/EN/JIS

Service: OEM&ODM

The stainless steel pneumatic lug knife edge gate valve adopts an integral stainless steel valve body that is corrosion-resistant and rust free. It is equipped with a lug thread installation structure and supports unilateral sealing and unilateral connection.

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Product Description

Product Overview & Quick Specifications

Valve Type

Lug knife gate valve

Structure

Concentric

Standard

API / EN / JIS

Workmanship

Investment casting

Sealing Direction

Bidirectional

Sealing Grade

Zero leakage

Temperature

-20°C < T < 425°C

Operation

Pneumatic

Characteristics

The pneumatic stainless steel lug knife gate valve is made of premium 304/316 stainless steel for excellent rust and corrosion resistance. The threaded lug structure allows single-side blind installation and firm fixing for pump ports and pipeline ends. Full straight bore design prevents slurry and dust blockage. Equipped with an explosion-proof pneumatic actuator, it supports fast remote on-off control for chemical, environmental and seawater treatment projects.

Key Advantages

Anti-Corrosion Performance: Full stainless steel (304/316) structure features outstanding anti-corrosion performance against acid, alkali and sewage, effectively avoiding rust and leakage for long-term service.

Single-Side Blind Closure: Threaded lug design supports single-side blind closure and unilateral connection. Firm installation with tension resistance makes it perfect for pump ports and pipeline ends.

Full Straight Bore & Remote Automation: Full straight bore prevents material blockage. Explosion-proof pneumatic actuator enables fast and stable remote automatic control with low maintenance cost.

Material Specifications

Part Name	Material Options
Body, Upper Bonnet	Ductile iron, Carbon steel, Stainless steel
Disc	Stainless steel
Stem	Stainless steel
Seal Ring	Rubber, PTFE, Stainless steel, Hard alloy

Dimensions & Technical Parameters

DN (mm)	L	D	D1	D2	H	N−M	D0
DN (mm)	PZ73X−10 / PZ73F−10 / PZ73H−10 / PZ73Y−10
50	48	165	125	102	285	4−M16	180
65	50	185	145	122	298	8−M16	180
80	51	200	160	138	315	8−M16	220
100	51	220	180	158	365	8−M16	220
125	57	250	210	188	400	8−M16	230
150	57	285	240	212	475	8−M20	280
200	70	340	295	268	540	8−M20	360
250	70	395	350	320	630	12−M20	360
300	76	445	400	370	780	12−M20	400
350	76	505	460	430	885	16−M20	400
400	89	565	515	482	990	16−M24	400
450	89	615	565	532	1100	20−M24	530
500	114	670	620	585	1200	20−M24	530
600	114	780	725	685	1450	20−M27	600

Packaging & Application Scenarios

Packing: Standard export wooden case packaging ensures safety during long-distance transportation.

Application Scenarios: The CF8 knife gate valve is widely used in chemical corrosive pipelines, sewage pump ports, seawater desalination, papermaking sludge, pharmaceutical and food slurry, mine granular medium and pipeline end cut-off systems.

Frequently Asked Questions (FAQ)

What materials are available for this lug knife gate valve?

The valve body and bonnet can be constructed from Ductile Iron, Carbon Steel, or Stainless Steel (304/316). The disc and stem are crafted from high-grade stainless steel, with sealing options including Rubber, PTFE, Stainless Steel, and Hard Alloy.

What are the temperature ratings and sealing grade performance?

This knife gate valve operates across a temperature range of -20°C < T < 425°C. It features a bidirectional concentric sealing design engineered for zero leakage performance.

Why choose a pneumatic lug pattern design?

The threaded lug configuration allows single-side blind installation and secure attachment at pump ports or pipeline ends. The integrated explosion-proof pneumatic actuator enables fast, reliable, remote automatic operation.

What industries benefit most from this valve?

It is ideal for handling abrasive and corrosive media in chemical processing, municipal sewage treatment, seawater desalination, paper sludge processing, food & pharmaceutical slurries, and mining cut-off systems.

What manufacturing standards and size ranges are supported?

The valve is manufactured to API, EN, and JIS standards, offering nominal sizes ranging from DN50 up to DN600 for wide industrial compatibility.

OEM Lug type pneumatic knife gate valve stainless steel material Suppliers, Manufacturers

Product Description

Product Overview & Quick Specifications

Characteristics

Key Advantages

Material Specifications

Dimensions & Technical Parameters

Packaging & Application Scenarios

Frequently Asked Questions (FAQ)

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