DI PN10/16 Class150 Lug Knife Gate Valve

The DI body lug type knife gate valve is one of the most economical and practical knife gate valves. The main components of a knife gate valve consist of the valve body, knife gate, seat, packing and valve shaft. Depending on the needs, we have rising stem and non-rinsing stem knife gate valves.

Size: 2”-80”/DN50-DN2000

Pressure Rating: PN10/16, 150LB

Warranty: 18 Mont

Brand Name: ZFA Valve

Service: OEM

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Product Detail

Size & Pressure Rating & Standard
Size	DN40-DN2000
Pressure Rating	DN50-100 PN16 DN150-200 PN10 DN250-400 PN7 DN450-600 PN5 DN650-750 PN4 DN800-900 PN3 DN1000 PN2
Design Standard	JB/T8691-2013
Flange Standard	GB/T15188.2-94 chart6-7
Test Standard	GB/T13927-2008
Material
Body	Ductile iron; WCB; CF8; CF8M; 2205; 2507
Disc	SS304; SS316; 2205; 2507; 1.4529
Stem/Shaft	SS410/420/416; SS431; SS304; Monel
Seat	Stainless Steel+STL EPDM (120°C) /Viton(200°C)/PTFE(200°C) /NBR(90°C)
Bushing	PTFE, Bronze
O Ring	NBR, EPDM, FKM
Actuator	Gear Box, Electric Actuator, Pneumatic Actuator

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Product Advantage

Standard AISI304 or 316 stainless steel gate is grinded and polished smoothly as mirror, which can effectively avoid damage of packing and seat through opening or closing and make a greater seal. The bottom of the gate edge is machined to a bevel, so that it cuts through the solids for a tighter seal in closed position. A knife protector can be provided for additional protection against dust.

There are 3 features as below:
1. Standard seat NBR, EPDM, also available in PTFE, Viton, Silicone etc. Unique design that mechanically locks the seal in the internal of valve body with a stainless steel retainer ring. Normally it is unidirectional seal design, and bidirectional seal as requested.
2. Several layers of braided packing with an easy access packing gland ensuring a tight seal. Available in a range of materials: Graphite, PTFE, PTFE+KEVLAR etc.
3. The guide block on the valve body makes the gate move correctly, and the extrusion block ensures the effective sealing of the gate.

ZFA Valve strictly execute API598 standard, we do both side pressure testing for all the valve 100%, guarantee deliver 100% quality valves to our customers.

The valve body adopt GB standard material, there’re total 15 process from iron to valve body.

The quality inspection from the blank to the finished product is 100% guaranteed.