Forged Steel Gate Valves Z61Y~Z11Y Product Overview:

Forged steel gate valveZ61Y~Z11YThere are three types of valve cover designs. The first type is bolt type valve cover. Valves designed in this form have their valve body and cover connected by bolts and nuts, and wrapped gaskets（316Clamp flexible graphite manufacturing) seal. When customers have special requirements, metal rings can also be used for connection. The second design form is a welded valve cover. According to this design form, the valve body and valve cover are connected by threads and fully welded sealed. When customers have special requirements, full penetration welding can also be used. The third type is the pressure self tightening valve cover. Valves designed in this form have a threaded connection between the valve body and the valve cover, and are sealed with an internal pressure self sealing ring.

Application scope:

Forged steel gate valve is suitable forClass150～Class2500Working temperature-29℃～425℃(Carbon steel) or-29℃～500℃On small-diameter pipelines made of stainless steel, it is used to cut off or connect media in the pipeline. Different materials are selected and can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing media, urea, etc.

Structural features:

1Forged steel gate valves have low fluid resistance, and their resistance coefficient is equal to that of pipe sections of the same length.
2The product structure of forged steel gate valve is simple, small in size, and light in weight.
3Tight and reliable, currently gate valves have good sealing performance and have been widely used in vacuum systems.
4Easy maintenance, simple gate valve structure, and easy disassembly and replacement.

Forged steel gate valves often overlook pressure issues. During the grease injection operation, the pressure of the semi free floating ball steam trap varies rhythmically with peaks and valleys. Low pressure, seal leakage or safety valve failure,Excessive pressure may cause blockage of the grease injection valve manufacturer, hardening of the grease inside the seal, or locking of the sealing ring with the valve ball or valve plate. When the grease injection pressure is usually too low, the injected lubricating grease tends to flow into the bottom of the valve chamber, usually occurring in small gate valves. If the pressure of the grease injection flow control valve is too high, on the one hand, check the insulation gate valve and grease injection nozzle. If it refers to the blockage of the remote control float valve hole, determine the situation and replace it with a spring seal with a wrench fully open condition; On the one hand, the plunger globe valve is hardened with grease, which requires the use of cleaning solution to repeatedly soften the failed sealing grease and inject new lubricating grease for replacement. In addition, the sealing model and sealing material also affect the grease injection pressure. Different sealing forms have different grease injection pressures, and in general, the grease injection pressure of hard seal gate valves is higher than that of soft seal gate valves.

Standard specifications:

Design and Manufacturing Standards:JB/T 7746TheAPI602
Structural length standard:GB/T 12221-2005
Connection flange standard:GB/T 9113
Socket welding standard:JB/T 1751TheASME B16.11
Threaded connection standard:GB 7306TheASME B2.1
Pressure and temperature rating:GB/T 12224-2005
Test and inspection standards:GB/T 13927-2008

Part materials and working conditions:

serial number	Part Name	CS to ASTMcarbon steel	AS to ASTMalloy steel	SS to ASTMstainless steel
		A105	F22	F304(L)	F316(L)
1	valve body	A105	A182F22	A182F304(L)	A182F316(L)
2	valve seat	A276420	A276304	A276304(L)	A276316(L)
3	ram	A182F430&410	A182F304	A182F304(L)	A182F316(L)
4	valve stem	A182F6	A182F304	A182F304(L)	A182F316(L)
5	shim	316Clamp flexible graphite		316clipPTFE
6	valve cover	A105	A182F22	A182F304(L)	A182F316(L)
7	bolt	A193B7	A193B16	A193B8	A193B8M
8	dowel pin	A276420		A182F304
9	packing gland	A276410		A182F304(L)	A182F316(L)
10	swivel bolt	A193B7	A193B16	A193B8	A193B8M
11	packing gland	A105	A182F11	A182F304(L)	A182F316(L)
12	nut	A1942H	A1944	A1948	A1948M
13	stem nut	A276420
14	lock nut	A1942H	A1944	A1948	A1948M
15	nameplate	SS
16	handwheel	A197
17	shim	A473431
18	filler	flexible graphite		PTFE
Applicable Medium		Water, steam, oil products, etc	Water, steam, oil products, etc	Nitric acid, acetic acid, etc
Applicable Temperature		—29℃～425℃	—29℃～550℃	—29℃～200℃

Attention: Other materials required by the customer can also be used, and the sealing surface material is determined by matching the customer's specified internal part code.

Main dimensions and weight:

NPS	Shrinking diameter	3/8'	1/2'	3/4'	1'	11/4'	11/2'	2'
	Full diameter		3/8'	1/2'	3/4'	1'	11/4'	11/2'	2'
L		92	111	111	120	120	140	178	210
H(open)		169	197	197	236	246	283	330	354
W		100	125	125	160	160	180	200	240
weight	Bolt type	2.5	4.3	4.2	6.6	8.8	12.5	17.2	23.5
	welded type	2.4	4.2	4.0	6.3	8.7	12.1	17.2	22.0

Structural diagram of forged steel gate valves Z61Y~Z11Y:

Ordering process:
1. Fax the customer's purchase list, call for consultation, or email shweierdun@163.com
2. Received the customer's purchase list and provided the customer with valve model selection and quotation (price list)
3. Specific agreement: delivery time, special requirements, and other matters

Ordering Notice:
1. If the customer has special requirements for the product, the following instructions must be provided in the order contract:
a. Structural length;
b. Connection form;
c. Nominal diameter;
d. Product usage medium, temperature, and pressure range;
e. Testing, inspection standards, and other requirements.
2. Our factory can configure various driving devices according to specific customer requirements.
3. When the customer provides the determined valve type and model, the customer should correctly explain the meaning and requirements of the model, and sign the contract under the condition of mutual understanding between the supply and demand parties.
4. Futures and ordering customers are requested to first call and provide detailed information on the required valve model, specifications, quantity, delivery time, and location. And 30% of the total contract amount shall be prepaid, and the supplier shall prepare materials for production.