Gear PTFE Lined Ball Valve

Waits Valve is a professional Gear PTFE Lined Ball Valve supplier in China. Our product has solid gear transmission precision, PTFE lining is corrosion-resistant, the structure is durable, and the sealing is very good, which can achieve efficient flow control in harsh industrial environments! Waits Valve's large-scale procurement reduces the cost of raw materials.

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Product Description

Waits Valve high quality Gear PTFE Lined Ball Valve is a valve driven by a gear mechanism. Gear transmission can achieve deceleration and torque amplification, and can be easily operated by handwheel or actuator. It is particularly suitable for large caliber or high pressure occasions, saving more manpower and facilitating remote control compared with manual ball valves. The ball and valve seat are usually sealed with metal or non metallic materials (such as PTFE, metal hard seal), with reliable sealing, low flow resistance and fast opening/closing. It is widely used in industries such as chemical, pharmaceutical, food and environmental protection.

Gear PTFE Lined Ball Valve has a straight-through flow channel to achieve positive closing while minimizing pressure drop and fluid turbulence. Since the ball is independent of the stem, it can move freely along the valve axis in the closed position, but cannot rotate relative to the stem. When line pressure is applied to the ball in the closed state, the ball moves slightly downstream to maintain contact with the downstream seat, thus achieving the primary seal.

Lined ball valves are usually installed without regard to flow direction and are well suited for automated production due to their ISO mounting pads.

Features:

1. Low emission stem seal

Low emissions are achieved thanks to pre-compressed solid PTFE packing rings and adjustable packing gland. Since the ball can move independently of the stem in the closed position, pressure-induced side loads on the stem seal are eliminated, providing excellent stem sealing even after thousands of cycles.

2. Blowout-proof stem

Gear PTFE Lined Ball Valve has an efficient stem design that does not blow out.

3. Anti-static device

Anti-static connection between stem and body is achieved by springs.

4. Self-compensating valve seat

The valve seat is designed to always provide reliable sealing with minimum operating torque, regardless of high or low pressure.

5. Lining

Pure PFA lining, anchored inside the valve, suitable for vacuum applications.

Implementation Standards-Gear PTFE Lined Ball Valve
Design Standards	API 6D/API 608, BS5351
Flange Standard	ASME B16.5/ASME B16.47-A/B /EN1092-1/2
Connection methods	RF
Testing and acceptance	API 598, EN12266
Structural length	API6D/ASME B16.10/EN558
Pressure and temperature ratings	ASME B16.34
Fireproof test	/
Low leakage standards	ISO 15848-1, API 622
Anti-corrosion design	NACE MR 0175
Application-Gear PTFE Lined Ball Valve
Size	NPS 2″~ NPS 12″ DN50~ DN300
Pressure range	PN16~PN40（1.6~4.0MPa）
Temperature range	PTFE-20°C~+180°C
Application range	Acid and alkali solution transportation, chemical reactor control, sewage/wastewater treatment, pharmaceutical, seawater, etc.
Drive mode	Worm
Valve body/valve cover	Forgings: A105, A182 F304, F304L, F316, F316L, F51, F53, B148, A350 LF2, LF3, LF5, PTFE-lined Castings: DI A216 WCB, CF3, CF8, CF3M, CF8M, 4A, 5A, C95800, LCB, LCC, LC2, PTFE-lined
Sealing surface	PTFE
Valve stem	‌A182-F6a-F304-F316-F51 17-4PH/XM-19 ...
Ball	A105, A182 F304, F304L, F316, F316L, F51, F53, B148, A350 LF2, LF3, LF5, PTFE-lined
Filler	Asbestos graphite, flexible graphite, polytetrafluoroethylene, iron-based alloy

Product Maintenance Notes

1.Regularly lubricate the worm gear (use lithium based grease) to prevent dry grinding and wear.

2.Rotate the handwheel slowly during operation to avoid impact loads damaging the transmission components.

3.Over-temperature and over pressure operation is prohibited (fluoroplastic is prone to deformation at high temperatures).

4.Inspect the lining for damage (such as bubbles or cracks) during shutdown maintenance and replace it promptly.

Product Advantages

1.Labor Saving and Efficient

The gear reduces speed and increases torque, significantly reducing the operating force for large diameter valves.

2.Precise Control

The handwheel requires multiple rotations for fine adjustment of the opening (e.g., flow regulation), suitable for scenarios requiring precise control.

3.Reliable Structure

Transmission components are made of metal materials (such as copper alloy gears and stainless steel shafts), which are wear resistant and have a long service life.

Gear Ptfe Lined Ball Valve