Oleoweb STB-G3/4 STB Series 3/4" Hydraulic Carbon Steel Flow Control Valve
Description
Bi-Directional flow restrictor hydraulic valve, also called check valve, is used in hydraulic system to control the flow and cutoff of oil.
If the oil inlet and outlet of a straight through check valve are in a axial direction, the valve may be connected directly to the system pipe via threaded pipe fittings.
The opening pressure of check valve may be either 0.04MPa or 0.4MPa. The former is normally used in pressure pipes to prevent oil from flowing in reverse direction, while the latter may be normally used as a back pressure valve.
Model | Max Flow L/min | Max pressure MPA | C | L | H | D | E | F | G | N | PN |
STB-G1/4 | 12 | 40 | G1/4 | 54 | 72 | 32 | 20 | M20*1 | 5 | 7 | 40 |
STB-G3/8 | 30 | 40 | G3/8 | 62 | 80 | 32 | 25 | M25*1.5 | 9 | 7 | 40 |
STB-G1/2 | 50 | 40 | G1/2 | 73 | 92 | 45 | 30 | M20*1.5 | 9 | 9 | 40 |
STB-G3/4 | 85 | 40 | G3/4 | 84 | 100 | 45 | 40 | M35*1.5 | 10 | 11 | 40 |
STB-G1 | 150 | 32 | G1 | 102 | 122 | 45 | 45 | M40*1.5 | 12 | 15 | 32 |



Quality Standards
The company for the products are brand new original products, no second-hand and refurbished products, or leave a compensable ten and return the full amount, but the buyer due to our purchase of model error is not responsible for returns, another of the company's sales of products enjoy one year from the date of shipment quality assurance, according to the original quality standards, during warranty with product problems, need confirmation testing by the manufacturer, the supplier to be solved, the demand side due to storage, use, poor maintenance caused by lower-quality product, and not raise objections.
Delivery
1. If the products we have in store, we will send it out ASAP after payment.
2. If the products which were customized, we will complete the production within a specified period of time, and send it out the first time, we can promise it.
3. We have a variety of ways to deliver goods, usually DHL, Fedex, TNL will be normal ways, If you require use of a courier, we can do it.
4. Also we can send by your delivery acount if you want.
FAQ
Q: Where is your factory ? Can we visit your factory?
A: Our factory is located in Ningbo City, Zhejiang Province,China, 17kms away from Ningbo Airport. We sincerely welcome customers to visit our company and factory.
Q: Could you add our logo on your products?
A: Yes,if your quantity more than 50pcs. we could add your logo on the products.
Q: How long is your delivery time?
A: Generally it is 1-2 days if the goods are in stock. or it will be 3-5 weeks if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ?
A: Yes, we could offer the sample for free charge, but do not pay the cost of express freight.
Q: What is your payment term and payment way?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment. Payment ways are : T/T, Western Union, Paypal, Alipay.
Q. What’s the shipping way?
A: For small packages, we will choose the door to door express, we cooperated with UPS,DHL,FEDEX,TNT more than 10 years,we gurantee the shipping cost that we offer to you will be the most favorable price among so many suppliers in China. We will send you the tracking number once we got it.