• The connection of stem and disc is not fixed but separable;
• When close the YFL bellows seal globe check valve, the stem pushes the disc to the seat to achieve seal, this valve can be used as globe valve;
• When open the YFL bellows seal globe check valve, the stem and the disc are separated, this valve can be used as check valve;
• The metal bellows connect the cover and stem to keep the stem without leakage;
• Double seal design with bellows seal and packing seal protects against leakage and provides excellent seal;
• Grease nipple can lubricate the stem, nut and sleeve.

Product range:

• Size: DN15～DN400
• Pressure rating: PN16 PN25 PN40
• End connection: Flanged RF RTJ BW
• Body materials: A105 WCB CF8 CF8M GS-C25 1.4301 1.4401 etc.
• Operation: handwheel gear electric pneumatic

Technical standards:

• Design: DIN3356
• Face to Face: DIN3202
• Flanged ends: DIN2543 DIN2545
• BW ends: EN12627
• Test and inspection: API598 DIN3230