HexaTech Teflone Bellow

The Teflon Bellows Mechanical Seal is an outside-mounted, corrosion-resistant component seal engineered specifically for handling extremely aggressive, highly corrosive, and chemically reactive fluids. Featuring a pure molded PTFE (Teflon) convoluted bellows, it completely isolates metal springs and hardware from the process medium, preventing chemical attack and premature failure.

Key Specifications & Features

Total Chemical Inertness
Premium virgin PTFE bellows construction delivers superior resistance to concentrated acids, alkalis, oxidizing agents, and strong solvents.
Non-Contacting Spring Assembly
Metallic multi-spring elements are positioned externally outside the process fluid, avoiding corrosion, clogging, and chemical deposition.
No Dynamic Elastomer O-Rings
Eliminates sliding secondary seals on the shaft, preventing shaft fretting, chemical degradation, and seal hang-up.
Replaceable Face Design
Features composite or clamped seal faces for simple maintenance, cost-effective refurbishment, and minimal downtime.

SEAL SIZE	ROTAR Y OD	D6	ST OD	ROTARY LENGTH(A)	ROTARY LENGTH(A)	ST LENGTH
1	60	42.86	54	42	45	17.5
1.125	67	46.03	60	42	45	27
1.25	69	50.8	65	42	45	27
1.375	72	53.98	68	42	45	27
1.5	76	57.15	71	42	45	27
1.625	80	63.5	78	42	45	27
1.75	84	66.68	81	44	46	27
1.875	86	69.85	84	44	46	27
2	90	73.03	87	46	46	27
2.125	95	79.38	97	46	46	33.5
2.25	98	82.55	100	46	46	33.5
2.375	100	85.73	103	46	46	33.5

Technical Specifications:

PROPERTY / PARAMETER	DETAILS
Structure Description
Equivalent Model	Equivalent to John Crane WB2 seal
Design & Application	PTFE bellows design, Outside mounted, used in strong corrosive chemical occasions
Operating Limits
Temperature	-20–120°C
Speed	10m/s
Pressure	5bar
Standard size	1″–2.375″
Material
Seal ring	Car, Sic, Ssic, Ceramic ,PTFE, Glassfill
Secondary seal	PTFE
Spring and metal parts	304,316

HEXATECH TRADING CO.

Hexatech Trading Co. designs and manufactures high-performance mechanical seals and related products for diverse heavy and process industries worldwide.