Product Features:1. Stem nut uses aluminum bronze material. Large valve is provided with thrust bearing to make it opened easily & flexibly.2. Bolted bonnet, lift stem design.3. Two piece design of packing gland to avoid stem clogging caused by squishing.4. Flexible graphite packing for dependable sealing performance.5. Upper seal design to ensure dependable packing and sealing when valve is fully opened(Replacement of packing under pressure is not recommended).6. Operation: Hand wheel, Worm wheel, Pneumatic actuator and Electric actuator. Product NameAPI Flange WCB 150LB Gate Valve1. MaterialA351 CF8M/CF8/CF3/CF3M,A216 WCB,A352 LCB,A217 WC6/WC92. Size1 1/2''~36'' ( DN40~DN900)3.CertificateISO9001 & CE4. PortFull Port5. Working Pressure150LB~900LB6. Connection EndsFlange7. Working Temp.-196~450℃8. Suitable MediumWater, Natural Gas, Oil and some corrosive liquid9. SealMetal10. LockingOption11. Inspection & TestingAccording to API598ShipmentDelivery Time15~20 DaysPackageStandard Exporting Plywood CaseShipping PortNingbo/Shanghai, ChinaShipping TermsExw, FOB, CFR, CIF, etc.Payment TermsT/T, Western Union, PayPal, etc.30% prepayment, 70% balance paid before shipping or against copy of BLWarranty18 Months after leaving factoryAdvantageOEM/ODM is applicableOthersWe also manufacture Flange Ball Valve, Gate Valve, Globe Valve, Check Valve, Butterfly Valve & Y StrainerTechnical Specifications:1. Design & Manufacture standard: BS 1873, ASME B16.342. Pressure & Temperature standard: ASME B16.343. Face to face dimension standard: ASME B16.104. Flange standard: ASME B16.55. Butt welding standard: ASME B16.256. Test & Inspect: API 598Benifits:Heavy duty body with shell thickness to API/BS standard.Seat ring and wedge disc ground and lapped to a mirror finish to provide matching sealing surface.Plug type disc supplied as standard. Flat and regulating type disc available upon request.Heat treaded stainless steel stem with precision machined ACME threads for long-lasting service.Machined backseat bushing to providee a seconary metal-to-metal stem seal.Rising stem for open/close position indication.Austenitic ductile iron yoke sleeve to provice resistance to heat, corrosion and wear.Two piece self-aligning gland bushing and gland flange to prevent stem damage.High strength alloy steel stud bolts and heavy series hex nuts used.Large diameter handwheel for easy operation.Optional deep stuffing box with Lantern ring.Angle and Y body patterns available.FAQQ1: We are interested in your products?A1: In order to recommend you suitable products, please provide detail information, like size, material, pressure, model.Q2: Is the requirement for MOQ?A2: For some small size, like 1/4''-1''(DN6-DN25), it request the MOQ is 50pcs for each size. Generally speaking, it depends on your order.Q3: How about the warranty?A3: The warranty time is 18 months after leaving our factory. We can repair or change because of the quality problems.Q4: PaymentA4: Mainly T/T, Western Union & PayPal are applicable for us. Payment Term: 30% prepayment, 70% balance paid before shipping or against copy of BL.Q5: Can you manufacture different standards valves according to customer requirements?A5: Yes. We can manufacture API,DIN,GOST,JIS standards for different pressure & temperature & size according to different needs.If you want to know more about our products, please contact freely. We will patiently answer your all questions.