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Description of 4 Inch Butterfly Valve:

ZECO 4 inch butterfly valve is made of body, disc, stem, seat, stuffing box, gear etc. ZECO butterfly valve is the most commonly used size on small pipelines, so there is a problem of stocking. Problems when stocking is almost the same with preparation of delivery. Time is the key factor, usually gate valve stocking period is decided by its sealing material. If the valve has to be stocked for several weeks or months, better stocking conditions are needed. Valve is usually stocked indoor and its stocking ambient temperature shall be higher than dew point. If valves are stocked outdoor, support the valve to make sure it does not contact the earth, at the same time, water-proof cover shall be added to the valve.

Features of 4 Inch Butterfly Valve:

1. ZECO 4 flanged butterfly valve are easily maintained. At any time pay attention to the sealing surface and shaft seal, When the sealing surface has abrasion or leakage, Generally, use the pressed seal of the screw plate to resolve, when the leakage occurred in the larger, the inner ring can be adjusted plus-one-chip be resolved, if there is damage to seals, plate seals can be removed, the replacement of seals, when the seal leakage, adjust packing gland or seal ring replacement;

2. The Double offset design of ZECO 4 inch butterfly valve is less abrasion, excellent sealing capacity;

3. The limit switch device of ZECO 4 inch butterfly valve ensure right position of open / close;

4. The body, disc and stem of ZECO 4 inch butterfly valve have sufficient strength and flexibility, sealing can be changed inside the valve.

Description of 4 Inch Gate Valve:

ZECO 4 inch gate valve is one of the most commonly used calibers. Gate valve in the line just switch effect, looks small, really small gate to pipeline protection as very important, although the gate valve switch is a long time, but the gate valve torque needed to light, in the case of an emergency, if only one person online, if go to close a 4 inch ball valve, may take the human is very big, if the manufacturing process is a little omission cause excessive torque, also likely won't open, but the gate by hand wheel operation, turn the handwheel to drive the stem promoted, this itself is a process of from, open is very light.

Features of 4 Inch Gate Valve:

1. The stem of ZECO 4 inch gate valve adopts T-head which is integral, This is much stronger than threaded or welded stem and is less prone to high pressure bending;

2. The stuffing box of ZECO 4 inch flanged gate valve is deep enough to ensure sufficient packing to keep the stem sealed for a long time. Standard installed stuffing box design requirements meet < 100ppm unorganized emissions requirements, ZECO environmental protection has been ISO 14001 certification, to a sense of social responsibility of the enterprise obligations;

3. The handwheel design of ZECO 4 inch gate valve makes valve be easy to operate, in the manual operation process to use the power up.Turbine drives, electric and pneumatic devices are also available;

4. ZECO 4 inch gate valve has been sent to all parts of the world, and have been well received by users of oil companies and natural gas companies. ZECO has won the recognition of users around the world and long-term cooperation opportunities with its quality.

Description of 6 Inch Gate Valve:

All casting and forged parts of ZECO 6 inch gate valve, especially the body and cover two of the main pressure components, are used to strengthen the intensity of the heavy sections, although ZECO body, cover thickness is up to standard, but the heavy sections of the design can make the product more guaranteed, allowance in corrosive medium to ensure long service life of the product.ZECO pays great attention to the purchase and inspection of raw materials, because ZECO knows very well that if raw materials are not strictly controlled, no matter how good the processing technology and detection means are in the later stage, they cannot turn unqualified products from the source into excellent products. Therefore, ZECO slowly moves valve products towards the route of handicraft products step by step.

Features of 6 Inch Gate Valve:

1. ZECO 6 inch gate valve has very reliable maintenance performance. The replaceable valve seat design ensures that later seat damage can be replaced on site. The inverted seal design ensures online replacement when packing is replaced;

2. When ZECO 6 inch flanged gate valve is transported, stainless steel valve and carbon steel valve will be separately packaged, because at room temperature, when carbon steel valve and stainless steel valve contact, will not immediately carburizing phenomenon, stainless steel valve has spots of corrosion is a certain period will appear.In the humid environment, if the carbon valve and stainless steel valve stacked together is easy to produce chemical reactions, thus damaging the protective layer of stainless steel valve, resulting in stainless steel valve rust;

3. After nearly 30 years of gate valve design, ZECO 6 inch gate valve products have stable performance and light switching torque;

4. ZECO 6 inch gate valve is all its own precision casting molds, and the casting sand is fine sand, beautiful appearance and clear casting characters.