Forged steel gate valve-Wenzhou Weinaite Valve CO.,LTD

The closing part of Z41H forged steel gate valve is a gate, which is a valve whose gate moves along the vertical direction of the channel axis. It is mainly used to cut off the medium in the pipeline, that is, fully open or fully closed. It is not suitable for adjusting the flow rate and conveying mud medium. It has the advantages of small fluid resistance, small opening and closing torque, and simple structure. This product can be used in pipelines with two-way flow of medium. When fully opened, the sealing surface is less eroded by the working medium than the stop valve.

Application scope of Z41H forged steel gate valve:

This product is suitable for cutting off or connecting pipeline medium in small diameter pipelines of various working conditions such as petroleum, chemical industry, and thermal power plants. Features: Small fluid resistance, wide applicable pressure and temperature range, unlimited medium flow direction, and good sealing performance. This product is manufactured in accordance with the national standard JB, GB, American standard API, ANSI standards.

Executive standard:

Design specification [JB/T 7746, API602]

Structure length【JB/T 7746】

Socket/Thread [JB/T1751/GB7306, ANSI B16.11/B2.1]

Test and inspection【JB/T 9092, API598】

Pressure-temperature [GB/T 9131, ANSI B16.34]

Structural features and advantages:

1. The gate valve has reasonable structural design, reliable sealing, smooth passage and small flow resistance coefficient.

2. The sealing surface of the gate and valve seat is made of iron-based alloy surfacing or stellite cobalt-based cemented carbide surfacing, which is wear-resistant, high-temperature resistant, corrosion-resistant, scratch-resistant, and has a long service life.

3. It adopts wedge-type elastic gate or rigid wedge-type single gate structure, with rolling bearings in medium and large diameters, flexible opening and closing, and easy opening and closing.

4. After quenching and tempering and surface nitriding treatment, the valve stem has good corrosion resistance, scratch resistance and wear resistance. Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.

5. The valve body has a complete range of materials, and the packing and gasket can be reasonably selected according to actual working conditions or user requirements, which can be suitable for various pressure, temperature and medium working conditions.

Performance specification:

PN（MPa）	（MPa）		Proper temperature（℃）			Applicable medium
	Strength test	Sealing test	WCB	Cr5Mo	1Cr18Ni9Ti
1.6	2.4	1.8	≤425	≤540	≤600	Water, oil, steam, acid medium
2.5	3.8	2.8
4.0	6.0	4.4
6.4	9.6	7.1

Parts materials and working conditions:

Part Name	Material designation
Valve body	WCB	ZGCr5Mo	CF8	CF8M ZG1Cr18Ni9Ti	CF3	CF3
Cap	WCB	12CrMoV ZGCr5Mo	304 CF8	316 CF8M	CF3	CF3 316L
Bracket	WCB	WCB	CF8	CF8M	CF3	CF3
Gate	WCB	ZGCr5Mo	CF8	CF8M	CF3	CF3
Stem	2Cr13	25Cr2MoV	1Cr18Ni9Ti
Valve seat	25	304	304	304	304	304
Gasket, backing ring, sealing ring	Coated gasket, 304, reinforced flexible graphite
Filler	Reinforced flexible graphite
Brake rod nut	ZCuA110Fe3

Main dimensions:

Size	PN(MPa)	DN(mm)	尺寸（mm）
Size	PN(MPa)	DN(mm)	L	H	H1	D0
Z41H-16C	1.6	15	130	175	195	200
		20	150	180	205	200
		25	160	210	240	220
		32	180	210	240	220
		40	240	350	425	240
		50	250	358	430	240
		65	265	373	452	240
		80	280	435	530	280
		100	300	500	620	320
		125	325	614	756	360
		150	350	674	845	360
		200	400	818	1041	400
		250	450	969	1244	450
		300	500	1145	1474	560
		350	550	1280	1663	640
		400	600	1450	1886	720
		500	700	1676	2181	720

SIX CHARACTERISTICS

Stable Operation / Thick Valve Body / Reliable Quality

WNT Strength Manufacturing, Assured Quality, Factory Quality Inspection

Low noise and stable
Energy-saving energy
Running smoothly
Not easy to rust
Low failure rate
Machinery Seal

COMMITTED TO FORGED STEEL VALVE

Ingenuity Craftsmanship, Excellent Quality, Years Of Experience

Thickened Body
Not easy to burst, good sealing, not easy to leak
Stable Performance
Nearly 20 years of experience in the valve industry, reliable quality
Meticulous Workmanship
Smooth and beautiful surface, stable structure
Strong Connection
Strong connection, not easy to loosen

Forged steel valves are mainly used in the pipelines of various systems in thermal power plants to cut off or connect pipeline media. Applicable medium: non-corrosive medium such as water and steam. Compared with other valve products, forged steel valves are characterized by high temperature and high pressure, unique self-sealing design, the higher the pressure, the more reliable the sealing. Due to the special performance, technical characteristics and working conditions, the product has also become a substitute for other products.

The products adopt ISO, API, ANSI, BS, DIN, NF, JIS, JPI, GB, JB and other advanced domestic and foreign standards. The product diameter is 3/8"-2" (DN10mm-50mm), and the pressure rating is 150Lb- 2500Lb (0.1Mpa-42.0Mpa), working temperature is -196℃-680℃.

OIL
CHEMICAL INDUSTRY
METALLURGY
MECHANICAL
ELECTRICITY
WATER SUPPLY

ONLINE MESSAGE

Forged steel gate valve Order Description:

1. ①Product name and model
②Nominal diameter
③Nominal pressure
④Use medium
⑤Connection method
⑥Using temperature
⑦Whether to bring accessories
So that we can choose the right type for you

2. If you have special requirements, please indicate when ordering the product

3. If the model has been selected by the design unit, please order directly from our sales department according to the model.

4. When the occasion of use is very important or the environment is more complicated, please provide the design drawing as much as possible.

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